Zeitschriftenartikel: „Volume wear“

1

Luo, Xuan, Shi Jie Wang und Xiao Ren Lv. „Prediction of Wear Volumes to 45 Steel of NBR Based on Neural Network“. Applied Mechanics and Materials 66-68 (Juli 2011): 788–92. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.788.

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The wear to orthogonal metals of NBR is the main cause of affecting the endurance of ESPCP. The rotational speed, load and temperature are main influence factors of the wear of 45 steel. The BP neural network model used in the forecast of the 45 steel wear volume was established. The 45 steel wear volume was obtained using friction and wear machine under different experimental parameters. The wear volumes of different experimental parameters were forecasted using BP neural network. The results indicate that it is feasible to forecast the rotational speed, load and temperature to 45 steel wear volume.

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Yang, Yu Sen, und Wesley Huang. „A Study of Wear Rate Estimation of Coatings by a Numerical Method“. Materials Science Forum 675-677 (Februar 2011): 675–80. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.675.

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The paper reported using a mathematical model that simulated the wear volume in comparison to measurement by a ball-on-disc for deposited CrN films on tool steel (JIS SKD11). Three dimensional profile instruments were used to measure the wear scar trace for variations of numerical data of two dimensional profiles. By using numerical algorithms, the wear volume measurements of wear profiles are to save considerable time and economical. A new mathematical method is issued for determining wear volumes in this study. The estimated results were precisely fitted as compared with other calculations for three dimensional estimations of wear volumes.

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Derbyshire, B. „The estimation of acetabular cup wear volume from two-dimensional measurements: A comprehensive analysis“. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 212, Nr. 4 (01.04.1998): 281–91. http://dx.doi.org/10.1243/0954411981534060.

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This paper describes a mathematical investigation of the relationship between wear volume, wear depth and wear direction in acetabular components. The analysis takes into account the cylindrical and conical portions at the mouth of certain types of socket and also incorporates the effect of an initial radial discrepancy between the femoral head and socket. Published formulae for converting linear wear measurements to wear volumes are shown to be incorrect. Wear volume is shown to be highly dependent on the wear direction, increasing by more than 90 per cent over a 60° range. Cylindrical and conical portions of a 22.225 mm cup may contribute up to about a third as much wear as the hemispherical socket. At low wear depths, the neglect of a radial discrepancy between the components can result in an overestimation of wear volume in excess of 100 per cent.

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Constantin, V., L. Scheed und J. Masounave. „Sliding Wear of Aluminum-Silicon Carbide Metal Matrix Composites“. Journal of Tribology 121, Nr. 4 (01.10.1999): 787–94. http://dx.doi.org/10.1115/1.2834136.

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The sliding wear of an aluminum matrix composite, reinforced with different volume fraction of particles, against a stainless-steel slider has been studied. In dry conditions, i.e., unlubricated tests, the pairs (slider and specimen), wear. When rubbing against an aluminum alloy (unreinforced), the slider does not wear but the aluminum alloy wears quickly by adhesion. In dry conditions, both slider and composite wear, but there is a minimum wear rate for this pair at a critical volume fraction of reinforcing particles. Under lubricated conditions, the situation changes dramatically. The composite no longer wears, but the slider wears very quickly. Under water, results are a compromise between the two previous situations, dry and lubricated. These results are explained by a simple, descriptive mechanism, which takes in account both the effect of the shear rate, due to the sliding action in the composite, and the abrasive effect of the particles. A general relationship, which describes the effect of the applied pressure and volume fraction of particles in the composite, is proposed.

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Jean, Ming Der, Chyuan Du Liu, Shin Fuh Wang, Chun Han Li und Kuang Hvi Kao. „Design and Optimization of Surface Properties for Diamond-Like Carbon Films by Sputtering Depositions“. Applied Mechanics and Materials 401-403 (September 2013): 762–66. http://dx.doi.org/10.4028/www.scientific.net/amm.401-403.762.

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Analysis of mechanical properties of diamond-like carbon (DLC) films based on experimental designs was reported to optimize characterize by a magnetron sputtering. An orthogonal array experiment was introduced and the effects of deposited parameters on the films were systematically explored. The films were analyzed by scanning electron microscopy (SEM). Friction and wear tests were carried out using a pin-on-disk tribometer. In this study, the two stages such as adhesive and abrasive wears for tribological properties are clearly visible among L18 tests, where at the higher wear volume losses exist an abrasive wear while the less wear volume losses appear an adhesive wear. A slightly worn surface with a glassy carbon phase appeared and a lower wear volume loss became visible in the DLC films. Through the optimal design, the experimental results demonstrate the tribological properties on DLC multilayer films are increased by a magnetron sputtering, thereby justifying the reliability and feasibility of the approach.

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Wu, James Shih-Shyn, Shu-Ling Hsu und Jian-Horng Chen. „Wear patterns of, and wear volume formulae for, hemispherical acetabular cup liners“. Wear 268, Nr. 3-4 (Februar 2010): 481–87. http://dx.doi.org/10.1016/j.wear.2009.09.007.

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Fisher, J., J. Bell, P. S. M. Barbour, J. L. Tipper, J. B. Mattews, A. A. Besong, M. H. Stone und E. Ingham. „A novel method for the prediction of functional biological activity of polyethylene wear debris“. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 215, Nr. 2 (01.02.2001): 127–32. http://dx.doi.org/10.1243/0954411011533599.

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The comparative performance of artificial hip joints has been extensively investigated in vitro through measurements of wear volumes. in vivo a major cause of long-term failure is wear-debris-induced osteolysis. These adverse biological reactions are not simply dependent on wear volume, but are also controlled by the size and volumetric concentration of the debris. A novel model is presented which predicts functional biological activity; this is determined by integrating the product of the biological activity function and the volumetric concentration function with the wear volume over the whole particle size range. This model combines conventional wear volume measurements with particle analysis and the output from in vitro cell culture studies to provide a new indicator of osteolytic potential. The application of the model is demonstrated through comparison of the functional biological activity of wear debris from polyethylene acetabular cups articulating under three different conditions in a hip joint simulator.

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Velten, K., R. Reinicke und K. Friedrich. „Wear volume prediction with artificial neural networks“. Tribology International 33, Nr. 10 (Oktober 2000): 731–36. http://dx.doi.org/10.1016/s0301-679x(00)00115-8.

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Barkmeier, WW, RL Erickson, MA Latta und TM Wilwerding. „Wear Rates of Resin Composites“. Operative Dentistry 38, Nr. 2 (01.03.2013): 226–33. http://dx.doi.org/10.2341/12-112-l.

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SUMMARY A laboratory study was conducted to examine the wear of resin composite materials using a generalized wear simulation model. Ten specimens each of five resin composites (Esthet•X [EX], Filtek Supreme Plus [SP], Filtek Z250 [Z2], Tetric EvoCeram [EC], and Z100 Restorative [Z1]) were subjected to wear challenges of 100,000, 400,000, 800,000, and 1,200,000 cycles. The materials were placed in cylinder-shaped stainless-steel fixtures, and wear was generated using a flat stainless-steel antagonist in a slurry of polymethylmethacrylate beads. Wear (mean facet depth [μm] and volume loss [mm3]) was determined using a noncontact profilometer (Proscan 2000) with Proscan and ProForm software. Statistical analysis of the laboratory data using analysis of variance and Tukey's post hoc test showed a significant difference (p<0.05) for mean wear facet depth and volume loss for both the number of cycles and resin composite material. Linear regression analysis was used to develop predictive wear rates and volume loss rates. Linear wear was demonstrated with correlation coefficients (R2) ranging from 0.914 to 0.995. Mean wear values (mean facet depth [μm]) and standard deviations (SD) for 1200K cycles were as follows: Z1 13.9 (2.0), Z2 26.7 (2.7), SP 30.1 (4.1), EC 31.8 (2.3), and EX 67.5 (8.2). Volume loss (mm3) and SDs for 1200K cycles were as follows: Z1 0.248 (0.036), Z2 0.477 (0.044), SP 0.541 (0.072), EC 0.584 (0.037), and EX 1.162 (0.139). The wear rate (μm) and volume loss rate (mm3) per 100,000 cycles for the five resin composites were as follows: wear rate Z1 0.58, EC 1.27, Z2 1.49, SP 1.62, and EX 4.35, and volume loss rate Z1 0.009, EC 0.024, Z2 0.028, SP 0.029, and EX 0.075. The generalized wear model appears to be an excellent method for measuring relative wear of resin composite materials.

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Huang, Wei Jiu, Rong Chang Zeng und An Hua Chen. „A Comparative Study on the Fretting Wear Resistant Properties of AZ91D and AM60B Magnesium Alloys“. Materials Science Forum 488-489 (Juli 2005): 745–48. http://dx.doi.org/10.4028/www.scientific.net/msf.488-489.745.

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The paper studied the fretting properties and the fretting mechanism of AZ91D and AM60B magnesium alloy. The results showed that the AZ91D alloy displayed lower friction coefficient and smaller wear volume than those of AM60B alloy, and also showed superior ability than those of AM60B in resisting crack nucleation and propagation. The fretting wear mechanisms of AZ91D and AM60B alloy were similar, including adhesion wear, surface fatigue wears and abrasive wear.

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Chen, Guangming, Dingena L. Schott und Gabriel Lodewijks. „Sensitivity analysis of DEM prediction for sliding wear by single iron ore particle“. Engineering Computations 34, Nr. 6 (07.08.2017): 2031–53. http://dx.doi.org/10.1108/ec-07-2016-0265.

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Purpose Sliding wear is a common phenomenon in the iron ore handling industry. Large-scale handling of iron ore bulk-solids causes a high amount of volume loss from the surfaces of bulk-solids-handling equipment. Predicting the sliding wear volume from equipment surfaces is beneficial for efficient maintenance of worn equipment. Recently, the discrete element method (DEM) simulations have been utilised to predict the wear by bulk-solids. However, the sensitivity of wear prediction subjected to DEM parameters has not been systemically investigated at single particle level. To ensure the wear predictions by DEM are accurate and stable, this study aims to conduct the sensitivity analysis at the single particle level. Design/methodology/approach In this research, pin-on-disc wear tests are modelled to predict the sliding wear by individual iron ore particles. The Hertz–Mindlin (no slip) contact model is implemented to simulate interactions between particle (pin) and geometry (disc). To quantify the wear from geometry surface, a sliding wear equation derived from Archard’s wear model is adopted in the DEM simulations. The accuracy of the pin-on-disc wear test simulation is assessed by comparing the predicted wear volume with that of the theoretical calculation. The stability is evaluated by repetitive tests of a reference case. At the steady-state wear, the sensitivity analysis is done by predicting sliding wear volumes using the parameter values determined by iron ore-handling conditions. This research is carried out using the software EDEM® 2.7.1. Findings Numerical errors occur when a particle passes a joint side of geometry meshes. However, this influence is negligible compared to total wear volume of a wear revolution. A reference case study demonstrates that accurate and stable results of sliding wear volume can be achieved. For the sliding wear at steady state, increasing particle density or radius causes more wear, whereas, by contrast, particle Poisson’s ratio, particle shear modulus, geometry mesh size, rotating speed, coefficient of restitution and time step have no impact on wear volume. As expected, increasing indentation force results in a proportional increase. For maintaining wear characteristic and reducing simulation time, the geometry mesh size is recommended. To further reduce simulation time, it is inappropriate using lower particle shear modulus. However, the maximum time step can be increased to 187% TR without compromising simulation accuracy. Research limitations/implications The applied coefficient of sliding wear is determined based on theoretical and experimental studies of a spherical head of iron ore particle. To predict realistic volume loss in the iron ore-handling industry, this coefficient should be experimentally determined by taking into account the non-spherical shapes of iron ore particles. Practical implications The effects of DEM parameters on sliding wear are revealed, enabling the selections of adequate values to predict sliding wear in the iron ore-handling industry. Originality/value The accuracy and stability to predict sliding wear by using EDEM® 2.7.1 are verified. Besides, this research accelerates the calibration of sliding wear prediction by DEM.

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Wu, James Shih-Shyn, Shu-Ling Hsu und Jian-Horng Chen. „Wear patterns of, and wear volume formulae for, cylindrically elongated acetabular cup liners“. Medical & Biological Engineering & Computing 48, Nr. 7 (28.04.2010): 691–701. http://dx.doi.org/10.1007/s11517-010-0613-2.

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13

Rudresh, B. M., B. N. Ravikumar und D. Madhu. „Tribological Response of Polyamide 66 and Polytetrafluroethylene (PA66/PTFE) Blends in Two Body Abrasion Through Multipass Condition“. International Journal of Surface Engineering and Interdisciplinary Materials Science 6, Nr. 1 (Januar 2018): 1–16. http://dx.doi.org/10.4018/ijseims.2018010101.

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The different weight percentages of 95/5, 90/10, 85/15, 80/20, 75/25 and 70/30 of PA66/PTFE blend composition was investigated as per the ASTM G99 method. The abrasive wear studies were conducted in multipass condition against waterproof silicon carbide (SiC) abrasive paper of 180 and 320 grit at a constant load of 5 N and 10 N with a sliding velocity of 1 m/s for varying abrading distances using pin-on-disc machine. It was found that the wear volume loss of composites increases linearly with increase in applied load and abrading distance. A significant reduction in wear resistance has been observed in terms of wear volume and specific wear rate with increase in addition of PTFE dosage in PA66/PTFE blend. Further, it was observed that the wear volume loss of composites has been decreased with increase in the rank of grit size. Higher wear volumes was due to deep penetration of large sized particles of 180 grit abrasives and less for 320 grit abrasives due to the transition of abrasion wear to sliding. The specific wear rate decreases with an increase in abrading distance for all the tested specimens. Microcutting, microploughing and fatigue loading of abrasive particles are the major failure mechanisms observed during the worn surface analysis using SEM.

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Blanchet, Thierry A., und Sung Won Han. „Simulation of the Time-Dependent Wear and Surface Accumulation Behavior of Particle-Filled Polymer Composites“. Journal of Tribology 120, Nr. 2 (01.04.1998): 152–58. http://dx.doi.org/10.1115/1.2834402.

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A simulation has been developed to model the transient wear of particle-filled polymer composites as a function of sliding distance. All inputs are parameters of physical significance, including filler bulk volume fraction, specific wear rate (relative to that of the matrix), and contact pressure. Run-in wear behavior is simulated by consideration of the accumulation of wear-resistant filler particles and the formation of a volume fraction profile near the composite sliding surface, facilitated by matrix cold flow. Simulation outputs include time-dependent volume fraction profile, and composite wear rate and wear volume. The simulation may be used for evaluation of candidate materials for applications in which nonsteady-state run-in wear effects are important, as well as a guide for the engineering of composite surfaces with graded volume fraction profiles that may provide resistance to initial transient wear contributions.

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Han, Sung Won, und Thierry A. Blanchet. „Equations for Time-Dependent Wear and Induced Concentration Profiles in Particle-Filled Polymer Composites“. Journal of Tribology 120, Nr. 3 (01.07.1998): 496–502. http://dx.doi.org/10.1115/1.2834578.

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A time-dependent description of the sliding wear behavior of hard particle-filled polymer composites is developed. The description is based upon the accumulation of wear-resistant filler particles in the surface region, and development of wear-induced subsurface concentration profiles. Descriptive expressions for wear volume and induced filler volume fraction profile are functions of sliding distance as well as composite characteristics such as filler and matrix bulk volume fractions and specific wear rates. An experimental demonstration validates filler surface accumulation phenomenon as a basis for this model of time-dependent polymer composite wear. The demonstration also supports the feasibility of engineering composite materials with near-surface graded volume fraction profiles, resisting run-in wear contributions at the onset of sliding. Model predictions of steady-state volume fraction profile may guide design of such graded composite bearing surfaces.

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Aghababaei, Ramin, Derek H. Warner und Jean-François Molinari. „On the debris-level origins of adhesive wear“. Proceedings of the National Academy of Sciences 114, Nr. 30 (10.07.2017): 7935–40. http://dx.doi.org/10.1073/pnas.1700904114.

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Every contacting surface inevitably experiences wear. Predicting the exact amount of material loss due to wear relies on empirical data and cannot be obtained from any physical model. Here, we analyze and quantify wear at the most fundamental level, i.e., wear debris particles. Our simulations show that the asperity junction size dictates the debris volume, revealing the origins of the long-standing hypothesized correlation between the wear volume and the real contact area. No correlation, however, is found between the debris volume and the normal applied force at the debris level. Alternatively, we show that the junction size controls the tangential force and sliding distance such that their product, i.e., the tangential work, is always proportional to the debris volume, with a proportionality constant of 1 over the junction shear strength. This study provides an estimation of the debris volume without any empirical factor, resulting in a wear coefficient of unity at the debris level. Discrepant microscopic and macroscopic wear observations and models are then contextualized on the basis of this understanding. This finding offers a way to characterize the wear volume in atomistic simulations and atomic force microscope wear experiments. It also provides a fundamental basis for predicting the wear coefficient for sliding rough contacts, given the statistics of junction clusters sizes.

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Tan, Zhi Hai, Qiang Guo, Xia Li und Zheng Ping Zhao. „The Tribological Behaviour of Precipitation-Hardening Stainless Steel 0Cr17Ni4Cu4Nb against 30CrMnSiA Steel under Sliding Condition“. Advanced Materials Research 479-481 (Februar 2012): 1102–9. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1102.

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The tribological behaviour of precipitation-hardening stainless steel 0Cr17Ni4Cu4Nb against 30CrMnSiA steel under sliding condition was tested using the M2000A model wear tester. The surface roughness, hardness and load under the dry or grease lubricated conditions were studied. It indicated that the volume wear, mass wear, wear rate and friction coefficient were all large, and the main wear mechanism was the adhesive wear under the dry friction. The grease lubrication can effectively reduce the volume wear and friction coefficient, and enhance the wear resistance properties of 0Cr17Ni4Cu4Nb. The tribological properties were the best when the surface roughness was 0.8μm under the grease lubricated friction. Meanwhile the volume wear was also small when its hardness was low. The hardness was higher and the friction coefficient was more stable after the heat treatment on 0Cr17Ni4Cu4Nb. The volume wear and friction coefficient were both increased with the increasing of the loads under the grease lubricated friction.

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Sun, Zhi Li, Yun Feng Zhang und Yu Tao Yan. „Experimental Research on Wear Random Process“. Advanced Materials Research 126-128 (August 2010): 976–80. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.976.

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The wear volume is obtained by means of experiment and the wear random process model is established according to the result. The Carbon steel material is used and the samples are grouped five after surface treatment, each group tests six times under the same condition. The wear volume under each wear time shows big dispersion. The additional study indicates that the sample has the large wear volume is in the serious wear state from the beginning, and the wear of running-in phase is inflected by the work velocity and the state condition of the surface of the samples. The wear process which the mean value is a constant and the standard deviation is different is a normal process generally, it is a stationary normal process if the standard deviation has no relation to the start of the wear time, or a Wiener process if the standard deviation is liner with the wear time, it is valuable to forecast the wear reliability.

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Türedi, Enbiya. „On the precise measurement capability of the direct microscopic measurement method for wear volume characterization“. MATEC Web of Conferences 188 (2018): 02007. http://dx.doi.org/10.1051/matecconf/201818802007.

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There are plenty of methods for determining the wear volume after a wear test. Due to the geometrical assumptions, some of them could unfortunately lead to mistaken results. It has been shown that a novel method, the direct microscopic measurement, is able to calculate the wear volume on a specimen surface very precisely and accurately [1-2]. It is based on creating a series of line profiles perpendicular to the wear scar. This novel method, however, needs to be characterized in terms of measurement limitations and minimum detectable volume capability. For example, how small or how shallow a wear scar could be calculated or measured with this method, must be determined. For this purpose, it has been prepared a series of wear test specimens exposed to the different amounts of wear in a “pin-on-disk” type test rig. As specimens, two different non-ferrous mold materials, Al bronze alloys, were selected and prepared metallographically. Counterpart materials were inox steel and bearing steel balls with diameter of 6 mm. Normal load was set to 5 N. Test configurations were set to 1, 5, 10 and 100 m of sliding distance values, in turn. Wear tests were conducted in according to ASTM G99 standard. Wear volume results were determined both direct microscopic measurement and also a 3D optical microscope methods. Comparison results showed that the novel method could be successfully used for wear volume calculations even with small amounts of wear volume conditions.

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Zhang, Yunbo, und Abdeljalil Jourani. „Effect of Martensite Volume Fraction on Oxidative and Adhesive Wear“. Materials 14, Nr. 11 (31.05.2021): 2964. http://dx.doi.org/10.3390/ma14112964.

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It is generally known that microstructure can considerably affect the tribological behavior of non-lubricated rubbing. However, there is still a lack of awareness about the effect of microstructure on oxidative wear. The present study focused on the effect of martensite volume fraction (MVF) on oxidative wear by using 25CD4 dual-phase steel. Dry friction tests were performed on a ball-on-flat tribometer with a normal load of 15 N and a mean sliding velocity of 0.013 m/s. Friction coefficient and wear rate increase with the increasing MVF. SEM observation and EDXS analyses of the wear scars showed that the oxidation increases with decreasing MVF. For lower MVF, the main wear mechanism is mild oxidative wear. For higher MVF, severe adhesion is predominant as a wear mechanism. The size of the debris decreases with decreasing MVF.

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Wang, Cai Yun, Peng Shen und Qi Yue Liu. „Study on Using Numerical Method to Predict Wear Volume of Rail“. Advanced Materials Research 335-336 (September 2011): 339–42. http://dx.doi.org/10.4028/www.scientific.net/amr.335-336.339.

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This paper describes an numerical method and simulation experiment investigation on the rail wear affected by the curve radius and axle load etc. the effects of curve radius and axle load on The effects of axle load and curve radius on total slippage of contact particles and friction work of wheel/rail are investigated with numerical methods are analyzed by kalker’s program CONTACT. The effect of curve radius and axle load on rolling wear behaviour of rail is investigated by simulation experiment. It is indicated that axle load and curve radius are important factors to effect rolling contact wear of wheel-rail, and there is a linear relationship between wear volume of rail and friction work of wheel/rail; The preliminary empirical formula between wear volume of rail sample and friction work is given by analysis the experimental and calculation results, the formula offers a certain reference value for researching wear of wheel-rail and predicting wear volume of rail.

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Mokhnache, El Oualid, Gui Song Wang und Lin Geng. „Dry Sliding Wear Resistance of the In Situ Al₂O₃/Al-Si Composites Fabricated in Al-SiO₂ by Reaction Hot Pressing“. Advanced Materials Research 1104 (Mai 2015): 155–61. http://dx.doi.org/10.4028/www.scientific.net/amr.1104.155.

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The dry sliding characteristics of three in situ Al2O3/Al-Si composites fabricated with volume fraction of 10, 20 and 30 vol.% were investigated. The effect of sliding parameters on the wear properties was investigated. As the sliding velocity increases the wear loss decreases systematically. When the volume fraction increased to 20 vol.%, an improvement of wear resistance was obtained. However, when the volume fraction was 30 vol.%, a further decrease of wear resistance was observed. In case of low volume fraction (10 vol.%), an extensive plastic deformation by plowing out the ductile Al matrix along with narrow grooves was observed. As the volume fraction increased to 20 vol.%, the abrasive wear by micro grooving is dominant as well as the low load is used. Whereas, when the volume fraction increased to 30 vol.%, besides the effect of large pores, the embedded Al2O3 in the massive Si blocks formed a weaker interface thereby behaving as source of crakes initiation and propagation. As result, fracture, micro-cutting and delaminating are observed as dominant abrasive wear mechanisms

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Wang, Zhi Tai, Zhi Feng Xu, Wen Na Liu und Wen Jie Li. „Wear Properties of High Volume Fraction SiC_P/Mg Composites Produced by Vacuum Pressure Infiltration“. Advanced Materials Research 311-313 (August 2011): 88–91. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.88.

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Magnesium matrix composites reinforced by SiC particles of different size have been fabricated by vacuum pressure infiltration to investigate the influence of volume fraction and particle size on wear properties. It was found that the wear resistance of SiCp/Mg composites increased as volume fraction of particles with the same average diameter and reduced with the decrease of average diameter of particle, whereas the grooves furrow and adhesion increase. The influence of particle diameters on wear resistance was more prominent than that of volume fraction. The wear mechanism of composite and matrix alloy were oxidation, adhesive and delamination wear.

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Qiao, Yu Lin, Shan Lin Yang, Yan Zang und Xin Yu Dong. „Effects of Ultrasonic Vibration on Tribological Properties of GCr15/45^# Steel Frictional Pairs in Lubricated Sliding Conditions under Various Friction Speed“. Advanced Materials Research 338 (September 2011): 599–602. http://dx.doi.org/10.4028/www.scientific.net/amr.338.599.

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The effects of friction speed and ultrasonic vibration on friction reduction and anti-wear properties of GCr15/45# steel frictional pairs under oil lubrication were investigated by a modified MFT-R4000 reciprocating friction and wear tester. The mechanism of friction reduction and anti-wear under ultrasonic vibration was discussed. The results showed that, the ultrasonic vibration could influence the friction reduction and anti-wear properties of frictional pairs due to it could reduce the stress between the friction pairs and destroy the oil film on the surface of samples. When the friction frequency was 2Hz，ultrasonic vibration would reduce the friction coefficient and wear volume of the frictional pairs. When the load was 40N, the friction coefficient and wear volume of the frictional pairs attained under ultrasonic vibration decreased 8% and 44% respectively. However, ultrasonic vibration would increase the friction coefficient and wear volume when the friction frequency was 5Hz. When the load was 30N, friction coefficient and wear volume of frictional pairs increased 11% and 74% than that without ultrasonic vibration respectively.

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Marhoon, Ismail Ibrahim, Dalia Adil Rasool, Kawther Ali Dhumad, Younis Swadi Tlaiaa und Mohammed Ali Abdulrehman. „Study Effect of Silver Oxide Addition on Mechanical Properties of Epoxy Composites“. European Journal of Engineering Research and Science 3, Nr. 7 (31.07.2018): 38. http://dx.doi.org/10.24018/ejers.2018.3.7.822.

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This study included the preparation of specimens of epoxy reinforced by silver oxide. Some of their mechanical properties been studied such as hardness, compression strength and wear rate with volume fraction 2%,4%,6%. The results showed that the mechanical properties hardness and compressive were affected directly by the increase of the volume fraction of the reinforcement material. The samples with the highest volume fraction had the highest hardness and compressive strength. As for the wear test was conducted in the circumstances of changing the applied load 40,60,80 N were approved, respectively, results shown that the rate of wear increases with load increasing of all samples before and after the reinforcement. For the relationship of the rate of wear with the increasing of the volume fraction, the results showed that there is a decrease in the rate of wear with the increasing of the volume fraction.

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Huang, Si, Jiaxing Huang, Jiawei Guo und Yushi Mo. „Study on Wear Properties of the Flow Parts in a Centrifugal Pump Based on EDEM–Fluent Coupling“. Processes 7, Nr. 7 (09.07.2019): 431. http://dx.doi.org/10.3390/pr7070431.

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By using EDEM–Fluent codes and coupling the continuous fluid medium with a solid particle discrete element, the solid–liquid two-phase flow field in a centrifugal pump was simulated under the same inlet conditions of the particle volume fraction and three flow conditions of 0.7Qd, 1.0Qd and 1.3Qd. By introducing the Archard wear model, the wear was calculated, and the wear law was obtained for the pump flow parts such as the leading edge of the impeller blade, blade tip, blade pressure side, blade suction side, impeller shroud, hub and volute. The results demonstrate that the wear of volute is about 70% of the total wear of pump. The wear in the impeller mainly occurs in the blade leading edge, the junction of the hub and the trailing part of the blade pressure side, and the junction of the shroud and the rear part of the blade suction side. Under lower flow conditions, the wear in the impeller shroud is relatively considerable. As the flow rate increases, the wear in the blade pressure side and the hub increases significantly.

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Joshi, Ajith, S. Basavarajappa, S. Ellangovan und B. M. Jayakumar. „Investigation on influence of SiCp on three-body abrasive wear behaviour of glass/epoxy composites“. Frattura ed Integrità Strutturale 15, Nr. 56 (28.03.2021): 65–73. http://dx.doi.org/10.3221/igf-esis.56.05.

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The present study present the influence of SiCp incorporation on three-body abrasive wear behavior of glass/epoxy composites. The investigations was carried out using dry sand rubber wheel abrasive wear test apparatus. 2k factorial design of experiment was used to capture the experimental data. The parameters considered are abrading distance, load and speed. The wear volume loss found to increase with the increasing values of wear parameters. The applied load has exhibited significant effect on volume loss. Incorporation of SiCp contributed to enhance wear resistance of glass/epoxy composites. The linear regression was also presented in the study to correlate abrasion parameters with wear volume loss. SEM image analysis of abraded surface revealed the occurrence of ploughing, micro-cutting, matrix removal and fiber breakage.

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Ilchmann, T., M. Reimold und W. Müller-Schauenburg. „Estimation of the wear volume after total hip replacement“. Medical Engineering & Physics 30, Nr. 3 (April 2008): 373–79. http://dx.doi.org/10.1016/j.medengphy.2007.04.003.

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Wang, W., und P. L. Wong. „Wear volume determination during running-in for PEHL contacts“. Tribology International 33, Nr. 7 (Juli 2000): 501–6. http://dx.doi.org/10.1016/s0301-679x(00)00091-8.

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Lancaster, J. K. „ASM handbook, volume 18, friction, lubrication and wear technology“. Tribology International 26, Nr. 4 (August 1993): 293–94. http://dx.doi.org/10.1016/0301-679x(93)90010-x.

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Eom, Ran-i., Sunhee Park, Soyoung Park und Yejin Lee. „Wear Evaluation of Protective Mask according to Internal Volume“. Journal of the Korean Society of Clothing and Textiles 44, Nr. 04 (30.09.2020): 626–38. http://dx.doi.org/10.5850/jksct.2020.44.4.626.

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Galo, Rodrigo, Marta Maria Martins Giamatei Contente und Maria Cristina Borsatto. „Wear of two pit and fissure sealants in contact with primary teeth“. European Journal of Dentistry 08, Nr. 02 (April 2014): 241–48. http://dx.doi.org/10.4103/1305-7456.130619.

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ABSTRACT Objectives: Wear simulations may provide an indication of the clinical performance of pit-and-fissure sealants when associated with primary teeth as counterbody, restricting the involved variables. The aim of this study was to evaluate wear of dental materials used as pit-and-fissure sealants in contact with primary teeth. Materials and Methods: A resinous sealant (Fluroshield®) and a resin-modified glass ionomer cement (Vitremer®) were selected in a post-plate design, using as counterbody primary tooth pins (4 × 4 × 2 mm) at 3 and 10 N vertical load, 1 Hz frequency, 900 wear cycles in artificial saliva (n = 15). Attrition coefficient values were obtained and the material and primary tooth volumes were analyzed. Data were analyzed statistically by ANOVA and Duncan's test (P < 0.05). Results: Fluroshield® presented the highest attrition coefficient values for the 3 N but these values decreased significantly for the 10 N load. The means for volume loss (3 mm) of the different samples after the wear test were not statistically different for the materials. The volume loss values for the primary teeth were statistically different and there was an increase in volume loss with the increase of the load applied in the wear tests. Conclusions: Differences were also observed with regard to the surface deformation characteristics. The wear rates of primary tooth enamel vary according to the type of material and the load applied during mastication.

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Milan, Brožek. „Abrasive wear resistance of selected woods“. Research in Agricultural Engineering 63, No. 2 (20.06.2017): 91–97. http://dx.doi.org/10.17221/74/2015-rae.

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In this contribution, the results of the wear resistance study of 10 sorts of wood (apple, aspen, beech, hornbeam, horse-chestnut, London plane, mahogany, silver fir, sour cherry and sweet cherry) are published. The laboratory tests were carried out using the pin-on-disk machine when the abrasive clothes of three different grits (240, 120 and 60) were used. The wear intensity was assessed by the volume, weight and length losses of the tested samples. From the results of the carried out tests it follows that the wear resistance of different woods is different. It was proved that the wear resistance of different woods depends on the abrasive particles size, too. Also the technical-economical evaluation was part of the carried out tests. It was univocally proved that at the intensive abrasive wear using the abrasive cloth the best results were shown by hard woods, e.g. apple, beech or mahogany. Soft woods, e.g. horse-chestnut, silver fir or sweet cherry, are cheap, but their wear is bigger compared to hard woods.

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Sun, Chao, Nannan Lu, Huan Liu, Xiaojun Wang, Xiaoshi Hu und Deqiang Chen. „Effect of Necklace-Type Distribution of SiC Particles on Dry Sliding Wear Behavior of As-Cast AZ91D/SiCp Composites“. Crystals 10, Nr. 4 (13.04.2020): 296. http://dx.doi.org/10.3390/cryst10040296.

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In this study, the dry sliding wear behaviors of SiC particle reinforced AZ91D matrix composites fabricated by stirring casting method were systematically investigated. The SiC particles in as-cast composites exhibited typical necklace-type distribution, which caused the weak interface bonding between SiC particles and matrix in particle-segregated zones. During dry sliding at higher applied loads, SiC particles were easy to debond from the matrix, which accelerated the wear rates of the composites. While at the lower load of 10 N, the presence of SiC particles improved the wear resistance. Moreover, the necklace-type distribution became more evident with the decrease of particle sizes and the increase of SiC volume fractions. Larger particles had better interface bonding with the matrix, which could delay the transition of wear mechanism from oxidation to delamination. Therefore, composites reinforced by larger SiC particles exhibited higher wear resistance. Similarly, owing to more weak interfaces in the composites with high content of SiC particles, more severe delamination occurred and the wear resistance of the composites was impaired.

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Tan, Zhi Hai, Qiang Guo, Xia Li und Zheng Ping Zhao. „The Tribological Behaviour of Beryllium Copper Alloy QBe2 against 30CrMnSiA Steel under Sliding Condition“. Advanced Materials Research 399-401 (November 2011): 2181–88. http://dx.doi.org/10.4028/www.scientific.net/amr.399-401.2181.

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The tribological behaviour of beryllium copper alloy QBe2 against 30CrMnSiA steel under sliding condition were tested at the M2000A model wear tester. It studied the hardness, surface roughness, load and prior corrosion of QBe2 specimens under the dry or grease lubricated conditions. The volume wear and friction coefficient were relatively better when the hardness of QBe2 was lager under the grease lubricated sliding friction. The volume wear was the smallest when surface roughness was 0.8μm, and its tribological properties were the best under the grease lubricated sliding friction. Meanwhile the values of wear loss, wear rate and average friction coefficient under the grease lubricated friction were one level smaller than that under the dry friction. The volume wear and friction coefficient decreased with the loads declined under the grease lubrication condition. Prior corrosion process made the lubricant effect worse, which obviously reduced the wear-resisting property of QBe2 and enlarged its wear rate and friction coefficient.

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Wang, H. F., J. L. Wang, W. W. Song, Dun Wen Zuo, D. L. Shao und Q. Q. Zhu. „Analysis on the Friction and Wear Properties of Friction Stir Jointing for 7022 Aluminum Alloy Joining Region“. Key Engineering Materials 693 (Mai 2016): 718–25. http://dx.doi.org/10.4028/www.scientific.net/kem.693.718.

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The friction and wear properties of the friction stir jointing 7022 aluminum alloy joining region were tested in this paper. The friction coefficients and wearing capacities of the joining regions under different joining process parameters were obtained. The experiment results showed that the friction coefficients and wearing capacities of the joining regions had a certain relationship with the hardness, but not became direct ratio relation. The friction coefficient of the joining region was smaller than that of the base metal. This main reason was base metal was lath-shaped grain, and the joining region was isometric crystal. The wear volume under 400/30 parameters was minimum. The wear volume was greatly influenced by the hardness of the joining region, but was not direct proportion relationship. Due to the random factors influence in friction process, the law of the friction coefficient reflecting friction and wear was not the same with the law of wear volume reflecting friction and wear. The friction form was abrasive wear and adhesive wear.

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Li, Zhu Jun. „Study on Fretting Wear Behavior of 40CrNiMoA Steel“. Advanced Materials Research 139-141 (Oktober 2010): 447–51. http://dx.doi.org/10.4028/www.scientific.net/amr.139-141.447.

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This study deals with fretting wear behavior of 40CrNiMoA steel on a SRVⅣoscillating friction and wear tester. The results indicate that with the frequency and load increasing, both the friction coefficient and fretting wear volume increase. With the amplitude increasing, the fretting wear volume increased too, but the effect of amplitude on friction coefficient was not simple positive correlation according to the experimental results. Meanwhile, the fretting wear mechanism is directly related to test frequency, load and amplitude. When they are small, the main fretting wear mechanism is abrasive wear, with these test parameters increasing, the main fretting wear mechanism turns to a combination of abrasive wear and adhesion wear. Based on the experimental results, the anti-fretting wear measures of steel worm gear pairs used in mechanical tracked regulator of tracked vehicle are discussed.

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Hall, R. M., A. Unsworth, P. S. Craig, C. Hardaker, P. Siney und B. M. Wroblewski. „Measurement of Wear in Retrieved Acetabular Sockets“. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 209, Nr. 4 (Dezember 1995): 233–42. http://dx.doi.org/10.1243/pime_proc_1995_209_350_02.

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Twenty-eight standard Charnley sockets were retrieved at revision surgery. The penetration angle with respect to the cup coordinate system, β, and penetration depth, d, of the sockets were measured using both the traditional shadowgraph technique and by analysing data obtained from a coordinate measuring machine (CMM). In addition, d was deduced radiographically from pre-revision X-rays. Limits of agreement between the three methods of measuring d were of the order of ±0.5 mm. Using the data obtained from the CMM it was possible to deduce the wear volume Vmeas directly. It was found that, in general, values of the wear volume calculated from d and β using equations cited elsewhere (1, 2) were both imprecise and inaccurate. The direct measurement of the wear volume using the CMM depends on the location of reference points external to the wear surface. If such surfaces were damaged, then it was concluded that the shadowgraph technique provided the most suitable method for measuring the dimensional changes in the retrieved socket, due to its relative ease of use.

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Kundrák, János, László Ráczkövi und Károly Gyáni. „Machining Performance of CBN Cutting Tools for Hard Turning of 100Cr6 Bearing Steel“. Applied Mechanics and Materials 474 (Januar 2014): 333–38. http://dx.doi.org/10.4028/www.scientific.net/amm.474.333.

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This article presents the examination of cutting performance of a low CBN content cutting tool in the case of hard turning of 100Cr6 hardened bearing steel. One of the indicators of cutting performance is the wear rate, which can be calculated as a ratio of a measurable geometric parameter of a wear form and some technological parameters (cutting time, cutting length or removed material volume). The wear of CBN cutting tools is characterized by the extent of flank wear hence the wear rates related to cutting time and removed material volume are calculated based on the measured flank wear during the cutting experiments. The alteration of wear rates as a function of flank wear and cutting speed was examined.

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Sun, Wen Bin. „Quantitative Estimation Technique for Wear Amounts by Real Time Measurement of Wear Debris in Lubricating Oil“. Advanced Materials Research 308-310 (August 2011): 647–50. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.647.

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A diagnostic technique that can estimate quantitatively wear amounts under lubricated condition was tentatively designed using the on-line particle concentration and counting technique. In this proposed device, the standing surface acoustic wave (SSAW) was used to concentrate the wear debris in the lubricating oil in a micro-channel, the debris were then delivered to an appropriately sized detector and scanned one by one. The size and number of wear debris in the circulating oil could be therefore measured and counted on-line. The volume of each wear particles was calculated by accumulating each volume in real time. The wear debris amounts obtained by this quantitative estimation technique were fairly similar to the measured values of mass loss of the specimens. This proposed device was conveniently embedded in the lubricating system. This study was expected to open new avenues for the real time fault diagnosis and life prognosis of machine.

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Barkmeier, WW, T. Takamizawa, RL Erickson, A. Tsujimoto, M. Latta und M. Miyazaki. „Localized and Generalized Simulated Wear of Resin Composites“. Operative Dentistry 40, Nr. 3 (01.05.2015): 322–35. http://dx.doi.org/10.2341/13-155-l.

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SUMMARY A laboratory study was conducted to examine the wear of resin composite materials using both a localized and generalized wear simulation model. Twenty specimens each of seven resin composites (Esthet•X HD [HD], Filtek Supreme Ultra [SU], Herculite Ultra [HU], SonicFill [SF], Tetric EvoCeram Bulk Fill [TB], Venus Diamond [VD], and Z100 Restorative [Z]) were subjected to a wear challenge of 400,000 cycles for both localized and generalized wear in a Leinfelder-Suzuki wear simulator (Alabama machine). The materials were placed in custom cylinder-shaped stainless steel fixtures. A stainless steel ball bearing (r=2.387 mm) was used as the antagonist for localized wear, and a stainless steel, cylindrical antagonist with a flat tip was used for generalized wear. A water slurry of polymethylmethacrylate (PMMA) beads was used as the abrasive media. A noncontact profilometer (Proscan 2100) with Proscan software was used to digitize the surface contours of the pretest and posttest specimens. AnSur 3D software was used for wear assessment. For localized testing, maximum facet depth (μm) and volume loss (mm3) were used to compare the materials. The mean depth of the facet surface (μm) and volume loss (mm3) were used for comparison of the generalized wear specimens. A one-way analysis of variance (ANOVA) and Tukey post hoc test were used for data analysis of volume loss for both localized and generalized wear, maximum facet depth for localized wear, and mean depth of the facet for generalized wear. The results for localized wear simulation were as follows [mean (standard deviation)]: maximum facet depth (μm)—Z, 59.5 (14.7); HU, 99.3 (16.3); SU, 102.8 (13.8); HD, 110.2 (13.3); VD, 114.0 (10.3); TB, 125.5 (12.1); SF, 195.9 (16.9); volume loss (mm3)— Z, 0.013 (0.002); SU, 0.026 (0.006); HU, 0.043 (0.008); VD, 0.057 (0.009); HD, 0.058 (0.014); TB, 0.061 (0.010); SF, 0.135 (0.024). Generalized wear simulation results were as follows: mean depth of facet (μm)—Z, 9.3 (3.4); SU, 12.8 (3.1); HU, 15.6 (3.2); TB, 19.2 (4.8); HD, 26.8 (6.5); VD, 29.1 (5.5); SF, 35.6 (8.4); volume loss (mm3)—Z, 0.132 (0.049); SU, 0.0179 (0.042); HU, 0.224 (0.044); TB, 0.274 (0.065); HD, 0.386 (0.101); VD, 0.417 (0.076); SF, 0.505 (0.105). The ANOVA showed a significant difference among materials (p<0.001) for facet depth and volume loss for both localized and generalized wear. The post hoc test revealed differences (p<0.05) in localized and generalized wear values among the seven resin composites examined in this study. The findings provide valuable information regarding the relative wear characteristics of the materials in this study.

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Khazaei, Bijan Abbasi. „Wear Mechanism of ADI“. Advanced Materials Research 445 (Januar 2012): 673–78. http://dx.doi.org/10.4028/www.scientific.net/amr.445.673.

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In this research wear mechanism of ADI under different intensity of loading with different hardness have been investigated. To study of wear behavior, a series of austempered specimens with optimum mechanical properties were used for wear tests. Dry sliding wear tests were carried out in pin-on-ring wear tester machine at speed of 0.5 ms-1 and loaded with normal loads of 100,200,300 and 400 N. Scanning electron microscopy for microstructure and wear surface analysis was used. To determine the austenite volume fraction and the percentage of carbon content in austenite, X-ray diffraction analysis was used. Results show that the role of retained austenite at wear properties of ADI is dependent on loading intensity and austenite carbon content.

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Lee, Young Ho, und Hyung Kyu Kim. „Development of a Fretting Wear Evaluation Method in the Nuclear Fuel Fretting by Using a Wear Scar Shape“. Advanced Materials Research 26-28 (Oktober 2007): 1231–34. http://dx.doi.org/10.4028/www.scientific.net/amr.26-28.1231.

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In order to evaluate the effects of a variation of a supporting springs' shape on the wear behavior of a nuclear fuel rod, sliding wear tests have been performed in room temperature air and water. The objective of the tests is to quantitatively evaluate the relationship between a worn area and a wear volume, and the formation behavior of a worn area with a variation of the slip amplitudes, applied normal loads and supporting spring shapes. The results indicated that the variation behavior of the volume and the wear scar size was influenced by the contact shape between the springs and the fuel rods. Also, it was found to be possible to evaluate a critical ratio (Tc) for each spring shape and test condition when the T was defined as the ratio of an applied normal load (Ln) to a wear scar size (At). Below this Tc, the wear volume was rapidly increased and the Tc was determined by a variation of the At under the same applied normal load condition. This result enables us to evaluate a wear resistant spring shape by using an analysis of a wear scar after wear tests have been completed. Based on the above results, the relationship between At and a worn area (Aw), a wear mechanism and an evaluation method for a wear resistance were discussed.

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Ding, Hong Yan, Guang Hong Zhou, Yue Zhang und Yi Fa Liu. „Fretting Tribology of Al₂O₃/Cu Composite Prepared by Powder Metallurgy“. Materials Science Forum 610-613 (Januar 2009): 573–78. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.573.

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The nano-Al2O3 reinforced copper matrix composite was prepared by powder metallurgy technique and the fretting test against 440C stainless steel was performed at room temperature by using the ball-on–flat configuration with 300μm amplitude at various normal loads in the range of 0.1N to 1N. The influences of load and proportion of Al2O3 on the friction coefficient and volume wear -loss were investigated. Results showed that the volume wear-loss decreased firstly and then increased as the proportion of Al2O3 increased from 0.5% to 4%, and the minimum proportion was about 2%, in which the electrical conductivity can reach up to 81% according to International Annealed Copper Standard (IACS). The friction coefficient of the copper will slightly increases as the load increased. However, in the case of composites, it increased firstly then decreased. The volume wear-loss of the composite is always lower than that of copper, giving the highest relative wear-ability of 1.55, which indicated a higher wear resistance. The wear mechanism of copper is adhesive wear, whereas it becomes oxidation wear in composites.

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Liu, Ai Hui, Hong Yan Ding, Guang Hong Zhou und Yue Zhang. „Fretting Tribology of Cu Matrix Composite Reinforced by In Situ Al₂O₃ Particle“. Advanced Materials Research 311-313 (August 2011): 26–31. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.26.

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Combined SHS with casting, in-situ Al2O3particle-reinforced copper matrix composite was fabricated. The effects of the load and Al2O3particle on the friction coefficient and wear volume were investigated. And the wear resistance of composite was compared with that of pure copper. The results show that with the increase of load, the coefficient of the copper increases, while it decreases slightly as to composite. The wear volume of the composite is always lower than that of copper. The highest relative wear ability is 4.5, which indicates a better wear resistance..

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Ilchmann, Thomas, Martin Lüem, Silke Pannhorst und Martin Clauss. „Acetabular polyethylene wear volume after hip replacement: Reliability of volume calculations from plain radiographs“. Wear 282-283 (April 2012): 69–75. http://dx.doi.org/10.1016/j.wear.2012.02.006.

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Yuvaraj, N. „Improving the Wear Properties of Aluminum 6082 Alloy by Surface Compositing with Zro2 Ceramic Particles Via Friction Stir Processing“. Material Science Research India 15, Nr. 1 (30.03.2018): 68–74. http://dx.doi.org/10.13005/msri/150108.

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Aluminum based metal matrix composites are given more attention in fabrication of surface engineering applications due to their excellent mechanical and wear properties. In this study, Friction stir processing (FSP) method was used to fabricate the surface composite with inserting different volume % of ZrO2 reinforcement particles in the Aluminum 6082 alloy. The hardness and triblogical characteristics of fabricated surface composites and base alloy were investigated. The higher volume content of reinforcement surface revealed higher hardness and higher wear resistance compared to the lower volume content reinforcement surface and base material. The wear worn-out of composite surfaces and base alloy were examined through SEM for understanding the wear mechanisms.

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Schmitz, Tony L., Jason E. Action, David L. Burris, John C. Ziegert und W. Gregory Sawyer. „Wear-Rate Uncertainty Analysis“. Journal of Tribology 126, Nr. 4 (01.10.2004): 802–8. http://dx.doi.org/10.1115/1.1792675.

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Wear due to relative motion between component surfaces is one of the primary modes of failure for many engineered systems. Unfortunately, it is difficult to accurately predict component life due to wear as reported wear rates generally exhibit large scatter. This paper analyzes a reciprocating tribometer in an attempt to understand the instrument-related sources of the scatter in measured wear rates. To accomplish this, an uncertainty analysis is completed for wear-rate testing of a commercially available virgin polytetrafluoroethylene pin on 347 stainless steel counterface. It is found that, for the conditions selected in this study, the variance in the experimental data can be traced primarily to the experimental apparatus and procedure. Namely, the principal uncertainty sources were found to be associated with the sample mass measurement and volume determination.

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Xia, Song Qin, Li Ge Wang, En Ze Wang und Xiaoan Yue. „Study on the Wear Resistance of Al₂O₃ Particles Reinforced Epoxy Resin Composite Coating“. Advanced Materials Research 821-822 (September 2013): 1148–51. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.1148.

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The study examined the wear resistance of Al2O3/epoxy resin composite coating including the composite curing agents and its ratio,fillers volume fraction and its particle size.The results show that, firstly, when the low molecular polyamide and phenolic amine composite curing agent were added into the epoxy resin system within a proper ratio ,it can improve the coating wear resistance property, especially the quality ratio is 1:1. Secondly, when the fillers particle size is fixed, its volume fraction ranges from 0 to 36.8%, when the volume fraction is 23.4%, the wear resistance property is better. Thirdly, when the fillers volume fraction is fixed, its particle size ranges from 28μm to 106μm, when the size within the range of 58-75μm, it can significantly improve the wear resistance ,the best wear resistance is about 3 or 5 times of the basal material Q235,having a higher cost performance. Besides, the coating resistance mechanism was investigated.

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Barpanda, P., S. M. Kulkarni und Kishore. „Sliding Wear Behaviour of an Epoxy System Reinforced with Particulate fly Ash Filler“. Advanced Composites Letters 18, Nr. 6 (November 2009): 096369350901800. http://dx.doi.org/10.1177/096369350901800603.

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Neat epoxy and epoxy containing different volume fraction of as received fly ash particulate filler bearing composites were cast, sectioned and subjected to pin-on-disk tests for evaluating the wear behaviour. The wear tests were conducted for 1 kilometre distance under 1 kg load for sliding velocity ranging from 1 to 5 m/s. The results showed that both neat epoxy and fly ash bearing composites exhibit differing magnitudes of wear loss, it being highest for unreinforced neat epoxy system. The data trends point to the fact that wears loss decreases with increasing content of fly ash in composites. To explain these differences, the wear surfaces were examined under scanning electron microscope and the features thus observed were correlated with the mechanical data.

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