Relevant bibliographies by topics / Al7075-T6

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Al7075-T6'

Author: Grafiati
Published: 4 May 2024

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Journal articles on the topic "Al7075-T6"

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Cho, Keong Hwan, Jin Hyeok Joo, Jung Heum Lee, Je Hoon Oh, and Dong Hyuck Kam. "Comparative Study of Joint Performance According to Joining Methods Between Al7075-T6 and SPFC590DP for Lightweight Car Body." Journal of Welding and Joining 39, no. 5 (October 30, 2021): 497–504. http://dx.doi.org/10.5781/jwj.2021.39.5.5.

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The necessity of dissimilar joining between aluminum alloy and steel is increasing in order to meet the demand for weight reduction in automobiles. However, dissimilar joining between 7000 series aluminum alloy and steel is challenging with mechanical joining methods such as self-piercing rivet(SPR) and flow drill screw(FDS) without hole processing. In this study, mechanical performances of dissimilar joints between 3 mm thick Al7075-T6 and 1 mm thick SPFC590DP were evaluated for use in lightweight B-pillar assembly. Self-Piercing Rivet(SPR) and Flow Drill Screw(FDS) with one-hole processing, bolt/nut and blind rivet with two-hole processing and adhesive bonding were compared with respect to joint performance. In SPR joining, rivet did not penetrate and rivet buckling occurred in the rivet due to the thickness and high strength of the Al7075-T6. By processing pre-hole on Al7075-T6 and applying an additional Al5052-H32 sheet to induce mechanical interlock in SPR joint, it became possible to join Al7075-T6 to SPFC590DP with an SPR. The tensile shear load of the SPR joint was 9.8 kN. In FDS joining, it is also necessary to process pre-hole on Al7075-T6 since the fastener could not penetrate the Al7075-T6. The tensile shear load of the FDS joining was 8.1 kN. In bolt/nut and blind rivet joining, the tensile shear load were measured respectively 11.1 kN and 5.2 kN. In adhesive bonding with 1K glue, the tensile shear load was measured 18.5 kN when the interfacial surface was roughened with a sand paper.
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Nama, Hamza A. H. Abo, İsmail Esen, Hayrettin Ahlatcı, and Volkan Karakurt. "Effect of Aging Heat Treatment on Wear Behavior and Microstructure Characterization of Newly Developed Al7075+Ti Alloys." Materials 16, no. 12 (June 15, 2023): 4413. http://dx.doi.org/10.3390/ma16124413.

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In this study, Al7075+0%Ti-, Al7075+2%Ti-, Al7075+4%Ti-, and Al7075+8%Ti-reinforced alloys were prepared by melting processes using Al7075 and Al-10%Ti main alloys. All newly produced alloys were subjected to T6 aging heat treatment and some samples were cold rolled at 5% beforehand. The microstructure, mechanical behavior, and dry-wear behavior of the new alloys were examined. Dry-wear tests of all alloys were carried out at a total sliding distance of 1000 m, at a sliding speed of 0.1 m/s, and under a load of 20 N. In the hardness measured after T6 aging heat treatment, the peak hardness of the Al7075+0%Ti-, Al7075+2%Ti-, Al7075+4%Ti-, and Al7075+8%Ti-reinforced alloys was found to be 105.63, 113.60, 122.44, and 140.41 HB, respectively. The secondary phases formed by the addition of Ti to the Al7075 alloy acted as precipitate-nucleation sites during aging heat treatment, further increasing the peak hardness. Compared to the peak hardness of the unrolled Al7075+0%Ti alloy, the increase in the peak hardness of the unrolled and rolled Al7075+8%Ti-reinforced alloys was 34% and 47%, respectively, and this difference in the increase was due to the change in the dislocation density with cold deformation. According to the dry-wear test results, the wear resistance of the Al7075 alloy increased by 108.5% with a reinforcement of 8% Ti. This result can be attributed to the formation of Al, Mg, and Ti-based oxide films during wear, as well as the precipitation hardening, the secondary hardening with acicular and spherical Al3Ti phases, the grain refinement, and solid-solution-hardening mechanisms.
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Balanou, Maria, Lazaros-Emmanouil Papazoglou, Angelos P. Markopoulos, and Panagiotis Karmiris-Obratański. "EXPERIMENTAL INVESTIGATION OF SURFACE TOPOGRAPHY OF AL7075-T6 ALLOY MACHINED BY EDM." Cutting & Tools in Technological System, no. 94 (June 16, 2021): 3–10. http://dx.doi.org/10.20998/2078-7405.2021.94.01.

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Electrical discharge machining is one of the most important non-conventional machining processes for removing material from electrically conductive materials by the use of controlled electric discharges. EDM is a non-contact machining process, therefore, is free from mechanical stresses. This paper investigates the machining Al7075-T6 alloy by EDM using a copper electrode. Al7075-T6 alloy was selected, because of its growing use in a lot of engineering applications. The effect of electrical parameters, peak current and pulse-on time, on the surface integrity, was studied. Area surface roughness parameters (arithmetical mean height, Sa, and maximum height, Sz) were measured on all samples and 3D surface characterization has been carried out with confocal laser scanning microscopy. The experimental results showed that the surface roughness is mainly affected by the pulse-on time.
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Hassan, Muhammad Hafiz, Jamaluddin Abdullah, and Gérald Franz. "Multi-Objective Optimization in Single-Shot Drilling of CFRP/Al Stacks Using Customized Twist Drill." Materials 15, no. 5 (March 7, 2022): 1981. http://dx.doi.org/10.3390/ma15051981.

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In recent years, the use of CFRP with titanium and/or aluminum to form materials for stacking has gained popularity for aircraft construction. In practice, single-shot drilling is used to create perfectly aligned holes for the composite-metal stack. Usually, standard twist drills, which are commonly available from tool suppliers, are used for practical reasons. However, existing twist drill bits exhibit rapid wear upon the drilling of composite-metal stack layers in single shot, due to the widely contrasting properties of the composite-metal stack, which causes poor surface quality. The stringent quality requirements for aircraft component manufacturing demands frequent drill bit replacement and thus incurs additional costs, a concern still unresolved for aircraft component manufacturers. Owing to highly contrasting properties of a composite-metal stack, it is obvious that standard twist drill cannot fulfil the rigorous drilling requirements, as it is pushed to the limit for the fabrication of high-quality, defect-free holes. In this work, customised twist drills of a tungsten carbide (WC) material with different geometric features were specially fabricated and tested. Twenty drill bits with customised geometries of varying chisel edge angle (30–45°), primary clearance angle (6–8°), and point angle (130–140°) were fabricated. The stacked-up materials used in this study was CFRP and aluminum alloy 7075-T6 (Al7075-T6) with a total thickness of 3.587 mm. This study aims to investigate the effect of twist drill geometry on hole quality using drilling thrust force signature as indicator. All drilling experiments were performed at spindle speed of 2600 rev/min and feed rate of 0.05 mm/rev. Design of experiments utilising response surface methodology (RSM) method was used to construct the experimental array. Analysis of variance (ANOVA) was used to study the effect of parameters and their significance to the thrust force and thus the hole quality. The study shows that the most significant parameter affecting the drilling thrust force and hole surface roughness is primary clearance angle, followed by chisel edge angle. Correlation models of CFRP thrust force (Y1), Al7075-T6 thrust force (Y2), CFRP hole surface roughness (Y3), Al7075-T6 hole surface roughness (Y4) as a function of the tool geometry were established. The results indicated that the proposed correlation models could be used to predict the performance indicators within the limit of factors investigated. The optimum twist drill geometry was established at 45° of chisel edge angle, 7° of primary clearance angle, and 130° of point angle for the drilling of CFRP/Al7075-T6 stack material in a single-shot process. The error between the predicted and actual experiment values was between 6.64% and 8.17% for the optimum drill geometry. The results from this work contribute new knowledge to drilling thrust force signature and hole quality in the single-shot drilling of composite-metal stacks and, specifically, could be used as a practical guideline for the single-shot drilling of CFRP/Al7075-T6 stack for aircraft manufacturing.
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Chen, Wen-Jong, Chuan-Kuei Huang, Qi-Zheng Yang, and Yin-Liang Yang. "OPTIMAL PREDICTION AND DESIGN OF SURFACE ROUGHNESS FOR CNC TURNING OF AL7075-T6 BY USING THE TAGUCHI HYBRID QPSO ALGORITHM." Transactions of the Canadian Society for Mechanical Engineering 40, no. 5 (December 2016): 883–95. http://dx.doi.org/10.1139/tcsme-2016-0072.

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This paper combines the Taguchi-based response surface methodology (RSM) with a multi-objective hybrid quantum-behaved particle swarm optimization (MOHQPSO) to predict the optimal surface roughness of Al7075-T6 workpiece through a CNC turning machining. First, the Taguchi orthogonal array L27 (36) was applied to determine the crucial cutting parameters: feed rate, tool relief angle, and cutting depth. Subsequently, the RSM was used to construct the predictive models of surface roughness (Ra, Rmax, and Rz). Finally, the MOHQPSO with mutation was used to determine the optimal roughness and cutting conditions. The results show that, compared with the non-optimization, Taguchi and classical multi-objective particle swarm optimization methods (MOPSO), the roughness Ra using MOHQPSO along the Pareto optimal solution are improved by 68.24, 59.31 and 33.80%, respectively. This reveals that the predictive models established can improve the machining quality in CNC turning of Al7075-T6.
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Abraham, D. S. Manoj, H. Kanagasabapathy, S. Kartheesan, and M. C. Shaji. "Dry Sliding Wear Behaviour of Al 7075 T6 Coated by Plasma Spray Process." Advanced Materials Research 984-985 (July 2014): 551–56. http://dx.doi.org/10.4028/www.scientific.net/amr.984-985.551.

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-Al7075 T6 alloys are widely used in the aircraft, automotive and die and mold making industry, yet at any time aluminium components should be designed with a third body or in an harsh environment they must be protected with an overlying coating inorder to increase their useful lifespan and improve their surface performance especially in wear and corrosion. The most wide spread technique used to modify the surface properties of Al7075 T6 among them one of the most promosing technology is plasma spraying. It is widely used to manufacture anti-wear and anti-corrosion coatings on to a large class of bulk materials. Extreme performance and high flexibility are the Main characteristic of the coatings achievable by Plasma Spray process. In this work Nickel Carbide + Chromium Composite coating was successfully prepared and deposied with various thicknesses on the Aluminium alloy surface. Nickel Carbide + Chromium composite coating exhibits a significantly increased wear resistance property in the material. The result obtained in this work indicated that the plasma spraying method will be the promising process to coat the composite coating on aluminium based alloy.Keywords: Al 7075 T6, Plasma Spray Process, Nickel Carbide + Chromium
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Abhinav, Rahul Ribeiro, and Rajul Raghav. "Elasto-Visco behavior of Al7075-T6 using a numerical technique." IOP SciNotes 1, no. 2 (August 29, 2020): 024401. http://dx.doi.org/10.1088/2633-1357/ababe9.

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Milković, Marijana, Denis Đonlagić, and Nenad Gubeljak. "Change of Residual Stress due Surface Conditions of Al7075-T6." Procedia Structural Integrity 13 (2018): 1861–66. http://dx.doi.org/10.1016/j.prostr.2018.12.328.

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Majzoobi, G. H., R. Hojjati, and M. Soori. "Fretting fatigue behavior of Al7075-T6 at sub-zero temperature." Tribology International 44, no. 11 (October 2011): 1443–51. http://dx.doi.org/10.1016/j.triboint.2011.03.021.

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Hasnan, Khalid, Qadir Bakhsh, Bhagwan Das, Aftab Ahmed, and Aqeel Ahmed. "Stress Analysis of Switchover Module with Al6061-T6 and Al7075-T6 for Hybrid Locomotion Mobile Robot." MATEC Web of Conferences 59 (2016): 05002. http://dx.doi.org/10.1051/matecconf/20165905002.

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Dissertations / Theses on the topic "Al7075-T6"

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Jovani, Théo. "Mesure des déformations de pièces par Corrélation d'Images Numériques pour un usinage intelligent." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2023. http://www.theses.fr/2023UCFA0042.

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L'industrie aéronautique vise sans cesse à optimiser la masse de ses aéronefs tout en garantissant la rigidité structurelle de ceux-ci. À cette fin, les pièces brutes permettant de réaliser ces pièces de structure sont produites via un ensemble de procédés de mise en forme et de traitements thermiques qui assurent de hautes exigences fonctionnelles mais qui induisent des contraintes résiduelles. Ces contraintes constituent un problème majeur pour les industriels. En effet, l'usinage de ces pièces provoque un changement d'équilibre des contraintes résiduelles, générant de ce fait des déformations pendant l'usinage et après débridage. Ces déformations, difficilement maîtrisables, impactent considérablement la qualité géométrique des pièces obtenues et entraînent la mise en place d'opérations de reprises chronophages et coûteuses, voire de mise au rebut. Il est donc primordial de pouvoir caractériser et mesurer l'impact de ces contraintes résiduelles sur la déformation des pièces pendant et après leur usinage en vue de maîtriser leur qualité géométrique.Les présents travaux s'intéressent à la mesure des déformations in-situ et à l'identification des distributions initiales de contraintes résiduelles de pièces pendant leur usinage. Des outils basés sur une mesure par Corrélation d'Images Numériques (CIN) et sur une mesure par Stéréo- Corrélation d'Images Numériques (S-CIN) sont développés. Les cas d'application sont des pièces en alliage d'aluminium Al7075-T6 se déformant soit dans le plan, soit de manière gauche. Les mesures effectuées pendant leur usinage sont utilisées soit pour reconstruire la carte de contraintes résiduelles, soit pour alimenter des modèles numériques visant à simuler en temps réel le comportement de la pièce. L'objectif est de pouvoir faire évoluer le montage d'usinage en temps réel pour compenser la déformation de la pièce. Ces travaux constituent une des briques d'un futur développement d'une cellule d'usinage intelligent
The aeronautical industry is constantly aiming to optimise the weight of its aircraft while ensuring their structural rigidity. To this end, the raw parts used to make these structural parts are produced using a series of shaping and heat treatment processes which ensure high functional requirements but which induce residual stresses. These stresses are a major issue for manufacturers. Indeed, the machining of these parts causes a change in the equilibrium of the residual stresses, thus generating deformations during machining and after unmounting. These deformations, which are difficult to control, have a significant impact on the geometric quality of the parts obtained and lead to the implementation of time-consuming and costly reworking operations, or even scrapping. It is therefore essential to be able to characterise and measure the impact of these residual stresses on the deformation of parts during and after their machining in order to control their geometric quality.The present work focuses on the in-situ measurement of deformations and the identification of the initial residual stress distributions of parts during their machining. Tools based on Digital Image Correlation (DIC) and on Stereo Digital Image Correlation (S-DIC) measurements are developed. The application cases are Al7075-T6 aluminum alloy parts encountering either in-plane or three-dimensional deformations. The measurements made during their machining are used either to reconstruct the residual stress map or to supply numerical models to simulate the behaviour of the part in real time. The objective is to be able to modify the machining set-up in real time to compensate for the part deformations. This work is one of the building blocks for a future development of an intelligent machining cell
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Book chapters on the topic "Al7075-T6"

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Kumara, Pavana, and Udaya Prasanna Handadi. "Influence of Burnishing Process on Tensile Strength of Al7075-T6 Alloy." In Lecture Notes in Mechanical Engineering, 133–41. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2278-6_12.

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Wydrzyński, Dawid, Łukasz Przeszłowski, Grzegorz Budzik, and Bartosz Kamiński. "Impact of Tool Imbalance on Surface Quality in Al7075–T6 Alloy Machining." In Lecture Notes in Mechanical Engineering, 226–35. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49910-5_20.

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Masuda, Kenichi, Sotomi Ishihara, Arthur J. McEvily, and Masaki Okane. "Specimen Thickness Effects on Front Edge Shape of Fatigue Crack in Al7075-T6 Alloy." In Proceedings of the 7th International Conference on Fracture Fatigue and Wear, 336–44. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0411-8_30.

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Barua, Abhishek, Swastik Pradhan, Siddharth Jeet, Dilip Kumar Bagal, Kanchan Kumari, Saujanya Kumar Sahu, and Arati Rath. "Numerical Modeling of Explosive Welded Ti/Al7075-T6 Bimetal Composite Plate Using Smoothed Particle Hydrodynamics." In Lecture Notes in Mechanical Engineering, 461–79. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4147-4_44.

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Zalnezhad, Erfan, and Ahmed Aly Diaa Mohammed Sarhan. "Fuzzy Logic Modeling for Higher Adhesion Strength of Cr/Cr-N Multilayer Thin Film Coating on Aerospace AL7075-T6 Alloy for Higher Fretting Fatigue Life." In Transactions on Engineering Technologies, 291–304. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9115-1_22.

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Zalnezhad, E., and A. A. D. Sarhan. "Fuzzy modeling to predict the adhesion strength of TiN ceramic thin film coating on aerospace AL7075-T6 alloy." In Recent Advances in Structural Integrity Analysis - Proceedings of the International Congress (APCF/SIF-2014), 239–44. Elsevier, 2014. http://dx.doi.org/10.1533/9780081002254.239.

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Kulkarni, Harshit B. "Study on the Effect of Nozzle Angle and Air Flow Rate during Nanofluid Minimum Quantity Lubrication Milling of Aerospace Alloy Al7075-T6." In Novel Perspectives of Engineering Research Vol. 10, 1–10. Book Publisher International (a part of SCIENCEDOMAIN International), 2022. http://dx.doi.org/10.9734/bpi/nper/v10/15702d.

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Conference papers on the topic "Al7075-T6"

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Brar, N. S., V. S. Joshi, B. W. Harris, Mark Elert, Michael D. Furnish, William W. Anderson, William G. Proud, and William T. Butler. "CONSTITUTIVE MODEL CONSTANTS FOR Al7075-T651 and Al7075-T6." In SHOCK COMPRESSION OF CONDENSED MATTER 2009: Proceedings of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP, 2009. http://dx.doi.org/10.1063/1.3295300.

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Couto, M., S. Dosta, J. M. Guilemany, and J. Putzier. "Properties and Comparison of WC-25/17/12Co Cold Spray Coatings onto Al7075-T6." In ITSC 2014, edited by R. S. Lima, A. Agarwal, M. M. Hyland, Y. C. Lau, G. Mauer, A. McDonald, and F. L. Toma. DVS Media GmbH, 2014. http://dx.doi.org/10.31399/asm.cp.itsc2014p0391.

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Abstract This study evaluates the corrosion and wear resistance of WC-Co coatings produced by cold gas and HVOF spraying. Three WC-Co cermet powders varying in cobalt content were deposited on aluminum alloy substrates by both methods. The powders were characterized based on microstructure, particle size distribution, and phase composition, and the coatings based on cross-sectional microstructure, phase composition, and Vickers hardness. The coatings are also compared based on the results of ball-on-disk, rubber-wheel, and electrochemical testing, which shows that CGS has several advantages over HVOF spraying for the deposition of WC-Co coatings.
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Pal, Ritam, Shashank Garikipati, Andrew Banks, and Amrita Basak. "An Apparatus for Tensile and Fatigue Testing of Metallic Materials Involving Miniature Specimens." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-102253.

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Abstract Mechanical testing under tensile and fatigue loading is ubiquitous. Such testing often requires expensive equipment and peripherals. During the development stages of any new material or manufacturing processes, it is often desired to perform quick evaluations to optimize the material composition or the manufacturing process parameters to achieve the desired properties. To address this requirement, this paper designs, develops, and deploys a low-cost custom testing apparatus capable of performing both tensile and fatigue testing to investigate the failure characteristics of a candidate material system, e.g., cold-rolled Al7075-T6. The apparatus consists of a linear actuator, a load cell, a polycarbonate sleeve, and a data acquisition system. The apparatus is additionally integrated with a high-speed video imaging system to investigate the failure evolution. The experiments are performed through a custom MATLAB® code. The resulting data are processed to extract the relevant mechanical properties such as the yield strength, the ultimate tensile strength, and the fatigue life. The results demonstrate that the apparatus can reliably characterize the tensile and fatigue properties of Al7075-T6. Throughout its use, the apparatus is found to be robust, resilient, and easy to assemble/disassemble. In conclusion, this apparatus can serve as a low-cost testing equipment to understand tensile and fatigue failure characteristics of metallic specimens during the qualification stages.
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Couto, M., S. Dosta, and J. M. Guilemany. "Cold Spray Deposition of a WC-25Co Cermet onto Al7075-T6 and Carbon Steel Substrates." In ITSC 2014, edited by R. S. Lima, A. Agarwal, M. M. Hyland, Y. C. Lau, G. Mauer, A. McDonald, and F. L. Toma. DVS Media GmbH, 2014. http://dx.doi.org/10.31399/asm.cp.itsc2014p0125.

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Abstract The main objective of this study is to determine the optimum conditions for cold spraying a WC-Co nanopowder on aluminum alloy and carbon steel substrates. XRD tests were run on the powder and coatings to determine if phase changes occurred during spraying. Coating samples were evaluated via adhesion, corrosion, and wear testing. Cold spraying proved to be very competitive with conventional thermal spray techniques, producing thick, dense, hard WC-Co coatings on steel as well as aluminum with excellent tribological and electrochemical properties.
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Jakobsen, Jan-Tore, R. M. Chandima Ratnayake, Sølve Sætre Sem, and Arnfinn Neverdal. "Investigating Optimal Parameter Combination for Friction Stir Spot Welding on AL7075-T6: Engineering Robust Design Approach." In ASME 2021 16th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/msec2021-60412.

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Abstract Friction stir spot welding (FSSW) is a solid-state joining technique which is used to weld alloys that has a low weldability such as the 2000 and 7000 series aluminum alloy. The marine, automotive and aerospace industry benefits using this method as the need for weight reduction and fuel economy make the use of aluminum and other light metals necessary. The purpose of this study is to find the optimum parameters and the ultimate failure load for FSSW welded specimens in a basic lap configuration. Two coupons of AA7075-T6 with a dimension of 210 × 30 × 0.8 mm and 210 × 30 × 1.6 mm were welded using a self-made FSSW machine rebuild for the purpose of this project. The experiment was performed using engineering robust design approach to investigate the optimal parameter combinations that provides optimal joint performance. Experiments has been carried out using the Taguchi L9 orthogonal arrays with 4 factors and 3 levels. The factors and levels were chosen as follows: pin length in the interwall 1.2 mm to 1.6 mm, shoulder depth 0 to 0.4 mm, dwell time 1 sec to 2.5 sec and tool rotation speed 1800 rpm to 2600 rpm. The joint performance has been evaluated considering the ultimate tensile load. Tensile testing of weldments was carried out using an Instron Universal Testing Machine. To estimate the error variance for the factor effects and variance of the predicted error analysis of variance (ANOVA) was performed. The mathematical framework anticipated an ultimate failure load of 3286N, and the verification run confirmed the predicted result by an average of 3215N. The optimum parameters were found to be a pin length of 1.4 mm, shoulder depth of 0.4 mm, dwell time at 2.5 sec and a rotational speed of 2200 RPM. The ANOVA showed that the shoulder depth was the dominant factor influencing 87.9 % of the variation of the signal-to-noise ratio (S/N).
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Mathavan, Jebaratnam Joy, Muhammad Hafiz Bin Hassan, and Abdus Samad Bin Mahmud. "Comparative study of hole quality performance in drilling of CFRP/Al7075-T6 stack using tetrahedral amorphous carbon coated drill." In PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON VIBRATION, SOUND AND SYSTEM DYNAMICS (ICVSSD 2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0178378.

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Dharmadhikari, Susheel, and Amrita Basak. "Energy Dissipation Metrics for Fatigue Damage Detection in the Short Crack Regime for Aluminum Alloys." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-58787.

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Abstract In this paper, three distinct energy dissipation metrics are proposed to enable fatigue damage detection in aluminum specimens. The metrics are (i) Energy Dissipation Rate, (ii) Cumulative Energy Dissipation, and (iii) Material Stiffness. They are created by using the force and displacement signals obtained from the fatigue testing apparatus during the testing of Al7075-T6 specimens. The apparatus is also equipped with a confocal microscope which calibrates the fatigue damage detection at a crack thickness of 10 μm, thereby, enabling precise detection in the short crack regime. Using all the three metrics, optimal thresholds are computed using receiver operating characteristics and the average accuracy of damage detection in quantified. Accordingly, the three metrics show an accuracy of 84.06%, 100%, and 84.32%, respectively in detecting the cracked specimens.
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Benhassine, Mehdi, Edouard Rivière-Lorphèvre, Pedro-Jose Arrazola, Pierre Gobin, Aurélie Granjon, Ohian Aizpuru, and François Ducobu. "Finite-element simulations of Al7075-T6 orthogonal cutting: Effect of part geometry and mesh on chip morphology and formation mechanism." In PROCEEDINGS OF THE 22ND INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2019. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5112611.

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Zhang, Wei, and Yongming Liu. "In-Situ SEM Testing for Transient Fatigue Crack Growth Behavior Investigation Subjected to a Single Tensile Overload." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37703.

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In this paper, the in-situ scanning electron microscopy (SEM) experiments are performed in the edge-cracked specimen under the single overload in order to investigate transient fatigue crack growth behavior. The specimen is made of Al7075-T6 and under the plane stress condition. During the testing, several loading cycles of interest are selected and divided into a certain number of steps. At each step, high resolution images around the crack tip region are taken under the SEM. Imaging analysis is used to quantify the crack tip opening displacement (CTOD) at each corresponding time instant in a loading cycle. In the current experimental work, the crack closure phenomenon is not only directly observed under constant amplitude loadings, but also under the variable amplitude loading. The experimental results provide the evidence that the crack closure may disappear or become inconsequential right after the single overload. And some observations imply that the crack closure is not the only parameter which controls fatigue crack growth rate, other factors need to be considered. A detailed discussion is given based on the current investigation.
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Couto, M., S. Dosta, J. Fernández, and J. M. Guilemany. "Comparison of the Mechanical and Electrochemical Properties of WC-25Co Coatings Obtained by High-Velocity Oxyfuel and Cold Gas Spraying onto Al7075-T6." In ITSC2013, edited by R. S. Lima, A. Agarwal, M. M. Hyland, Y. C. Lau, G. Mauer, A. McDonald, and F. L. Toma. ASM International, 2013. http://dx.doi.org/10.31399/asm.cp.itsc2013p0138.

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Abstract:
Abstract WC-Co cermet powders were deposited on aluminum substrates by cold gas spraying. XRD tests were run on the powder and coatings to reveal possible phase changes during spraying. Bonding strength, abrasive wear resistance, and corrosion resistance were also measured and are compared with values obtained from HVOF sprayed WC-Co coatings.
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