Relevant bibliographies by topics / Hot dip metallic coating

Academic literature on the topic 'Hot dip metallic coating'

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Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Hot dip metallic coating"

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Zhang, Hui, and M. Karim Moallemi. "Numerical simulation of hot-dip metallic coating process." International Journal of Heat and Mass Transfer 38, no. 2 (January 1995): 241–57. http://dx.doi.org/10.1016/0017-9310(95)90009-8.

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Mondal, A., A. Chakraborty, P. Mohanta, and M. Dutta. "Effect of a thin prior-metallic coating on the morphology of hot-dip Zn coating." Ironmaking & Steelmaking 43, no. 7 (February 9, 2016): 508–16. http://dx.doi.org/10.1080/03019233.2015.1109791.

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Bensalah, W., N. Loukil, M. De-Petris Wery, and H. F. Ayedi. "Assessment of Automotive Coatings Used on Different Metallic Substrates." International Journal of Corrosion 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/838054.

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Four epoxy primers commonly used in the automotive industry were applied by gravity pneumatic spray gun over metallic substrates, specifically, steel, electrogalvanized steel, hot-dip galvanized steel, and aluminum. A two-component polyurethane resin was used as topcoat. To evaluate the performance of the different coating systems, the treated panels were submitted to mechanical testing using Persoz hardness, impact resistance, cupping, lattice method, and bending. Tribological properties of different coating systems were conducted using pin on disc machine. Immersion tests were carried out in 5% NaCl and immersion tests in 3% NaOH solutions. Results showed which of the coating systems is more suitable for each substrate in terms of mechanical, tribological, and anticorrosive performance.
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Urbanovich, N. I., K. E. Baranovsky, E. V. Rozenberg, T. I. Bendik, A. A. Karpenkin, V. A. Ashuiko, V. G. Matys, and V. F. Volosyuk. "Analysis of corrosive properties of zinc-containing coatings based on dispersed waste hot zinc plating." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 4 (December 16, 2020): 106–12. http://dx.doi.org/10.21122/1683-6065-2020-4-106-112.

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A comparative analysis of the corrosion properties of zinc-containing coatings obtained on the basis of metallic powder zinc and dispersed hot-dip galvanized waste has been carried out. The results of a study of the corrosion resistance of zinc-containing coatings by the electrochemical method and in a salt spray chamber have shown that coatings obtained on the basis of dispersed hot-dip galvanized waste are not inferior in protective properties to coatings based on powder standard zinc.
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Pruncu, C. I., Z. Azari, C. Casavola, and C. Pappalettere. "Characterization and Prediction of Cracks in Coated Materials: Direction and Length of Crack Propagation in Bimaterials." International Scholarly Research Notices 2015 (January 31, 2015): 1–13. http://dx.doi.org/10.1155/2015/594147.

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The behaviour of materials is governed by the surrounding environment. The contact area between the material and the surrounding environment is the likely spot where different forms of degradation, particularly rust, may be generated. A rust prevention treatment, like bluing, inhibitors, humidity control, coatings, and galvanization, will be necessary. The galvanization process aims to protect the surface of the material by depositing a layer of metallic zinc by either hot-dip galvanizing or electroplating. In the hot-dip galvanizing process, a metallic bond between steel and metallic zinc is obtained by immersing the steel in a zinc bath at a temperature of around 460°C. Although the hot-dip galvanizing procedure is recognized to be one of the most effective techniques to combat corrosion, cracks can arise in the intermetallic δ layer. These cracks can affect the life of the coated material and decrease the lifetime service of the entire structure. In the present paper the mechanical response of hot-dip galvanized steel submitted to mechanical loading condition is investigated. Experimental tests were performed and corroborative numerical and analytical methods were then applied in order to describe both the mechanical behaviour and the processes of crack/cracks propagation in a bimaterial as zinc-coated material.
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Adetunji, Olayide Rasaq, Peter Olaitan Aiyedun, and Oladimeji Suleiman Bello. "Anticorrosive Property of Potassium Dichromate Film on Galvanized Coating in Distilled Water." Solid State Phenomena 227 (January 2015): 135–38. http://dx.doi.org/10.4028/www.scientific.net/ssp.227.135.

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Hot Dip Galvanized (HDG) coating protects steel from corrosion by providing a thick, tough metallic zinc envelope, which completely covers the steel surface and seals it from the corrosive action of its environment. The anti-corrosion ability of this sacrificial anode cathodic protection can be improved upon through the protective nature of passivation films on zinc like potassium dichromate.This study investigated the anti-corrosion effect of potassium dichromate (K2Cr2O7) film on freshly galvanized coating in distilled water (pH=7.92). The K2Cr2O7film passivity on the hot-dip zinc coated steel sheets (taken as treated in the context of this study) was used in direct comparison with their untreated counterparts. The test was run for 30 days at 120 hours interval during which the corresponding weight losses, corrosion rates, inhibitor efficiencies, and pH of the final solutions were obtained of the coupons. Analysis of results was made using Microsoft office applications. The surface morphology of the samples was obtained using Optical microscope. The results obtained revealed the greater influence of the action of the K2Cr2O7film on selected and examined HDG steel sheets corrosion performance. Weight losses increased with increase in immersion time. Inhibitor efficiency of 4.1% was achieved. The photomicrographs confirmed the occurrence of corrosion on untreated coating more than the treated ones. Conclusively, potassium dichromate was effective in passivating galvanized coating from white rust.
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Gill, Simran Singh, and Kapil Babbar. "Influence of Plasma Sprayed Coatings on Die Life during Hot Forging Process: A State of Art Review." Asian Journal of Engineering and Applied Technology 7, no. 2 (October 5, 2018): 132–37. http://dx.doi.org/10.51983/ajeat-2018.7.2.901.

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Tooling and die failure is a prime concern for hot forging industry for survival in the competitive globe. Different methods are employed to protect the tools/dies from degradation. Thermal spraying is one of the most effective methods to protect the material from wear, thermal fatigue and plastic deformation due to adverse environments during hot forging process, thus increasing the life of material in use. A coating is a covering process that is applied to the surface of a material which is referred to as the substrate. The coating itself is either completely covered through the whole surface or the particular parts of the substrate. Different coatings are used to achieve the desired properties. In this process, relatively thick metallic, polymer, ceramic and composite coatings is deposited. The optimum coating process is selected on the basis of desired coating properties. Coating material is either in the form of wire, powder, rod, cord or molten-bath form. The procedure may be manual, mechanized or fully automated. This paper attempts to define some of the current important issues and research priorities in the plasma spray field.
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Pistofidis, N., G. Vourlias, D. Chaliampalias, F. Stergioudis, and Efstathios K. Polychroniadis. "A Combined Microscopical and XRD Study of Zinc Coatings." Solid State Phenomena 163 (June 2010): 93–96. http://dx.doi.org/10.4028/www.scientific.net/ssp.163.93.

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In the present work the phases of the zinc coatings deposited with hot-dip galvanizing, pack cementation and wire flame spraying are examined with Scanning Electron Microscopy and Transmission Electron Microscopy. The different phases which are observed are identified with the combined results of electron and X-Ray diffraction. From the results it is concluded that pack cementation coatings are consisted by two different layers while hot dip galvanized coatings are composed by the same phases and additionally two extra phases of the Fe-Zn phase diagram. Flame sprayed coatings are composed by pure zinc, in the form of thin lamellae, together with nanocrystaline zinc oxide which is formed from the oxidation of liquid metallic droplets during the spray procedure.
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Akin, Y., R. E. Goddard, W. Sigmund, and Y. S. Hascicek. "In-Situ Study of NiO Growth on Textured Nickel Tape Using Environmental Scanning Electron Microscope (ESEM) and Hot Stage." Microscopy and Microanalysis 7, S2 (August 2001): 1276–77. http://dx.doi.org/10.1017/s1431927600032451.

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Deposition of highly textured ReBa2Cu3O7−δ (RBCO) films on metallic substrates requires a buffer layer to prevent chemical reactions, reduce lattice mismatch between metallic substrate and superconducting film layer, and to prevent diffusion of metal atoms into the superconductor film. Nickel tapes are bi-axially textured by cold rolling and annealing at appropriate temperature (RABiTS) for epitaxial growth of YBa2Cu3O7−δ (YBCO) films. As buffer layers, several oxide thin films and then YBCO were coated on bi-axially textured nickel tapes by dip coating sol-gel process. Biaxially oriented NiO on the cube-textured nickel tape by a process named Surface-Oxidation- Epitaxy (SEO) has been introduced as an alternative buffer layer. in this work we have studied in situ growth of nickel oxide by ESEM and hot stage.Representative cold rolled nickel tape (99.999%) was annealed in an electric furnace under 4% hydrogen-96% argon gas mixture at 1050°C to get bi-axially textured nickel tape.
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Hocking, Graeme Charles. "Draining under gravity in steel galvanization." ANZIAM Journal 61 (June 14, 2020): C31—C44. http://dx.doi.org/10.21914/anziamj.v61i0.15155.

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The problem of the coating of steel has been considered in several Mathematics in Industry study groups. In this process, after passing through a bath of molten alloy, steel sheeting is drawn upward to allow draining under gravity and stripping using an air knife, leaving a coating of desirable thickness. Here we discuss some aspects of the problem and in particular the gravity draining component. The problem is a very nice introduction to industrial modelling for students, but is also relevant for manufacturing. References Elsaadawy, E. A., Hanumanth, G. S., Balthazaar, A. K. S., McDermid, J. R., Hrymak, A. N. and Forbes, J.F. ``Coating weight model for the continuous hot-dip galvanizing process'', Metal. Mat. Trans. B, 38:413–424, 2007. doi:10.1007/s11663-007-9037-2 Hocking, G. C., Sweatman, W. L., Fitt, A. D., and Roberts M. ``Coating Deformation in the jet stripping process'' in Proceedings of the 2009 Mathematics and Statistics in Industry Study Group, Eds. T. Marchant, M. Edwards, G. Mercer. Wollongong, Austealia, 2010. https://documents.uow.edu.au/content/groups/public/@web/@inf/@math/documents/doc/uow073330.pdf Hocking, G. C., Sweatman, W. L., Fitt, A. D., and Breward, C. ``Deformations arising during air-knife stripping in the galvanization of steel'', in Progress in Industrial Mathematics at ECMI 2010, Eds. M. Gunther, A. Bartel, M. Brunk, S. Schops, M. Striebel. Mathematics in Industry 17, pp. 311-317. Springer, Berlin Heidelberg, 2011. doi:10.1007/978-3-642-25100-9_36 Hocking, G. C., Lavalle, G., Novakovic, R., O'Kiely, D., Thomson, S., Mitchell, S. J., Herterich, R. ``Bananas–-defects in the jet stripping process''. Proceedings of the European Study Group with Industry in Mathematics and Statistics Research Collection. Rome Italy, 2016. https://researchrepository.ucd.ie/handle/10197/10215 Howison, S. D. and King, J. R. ``Explicit solutions to six free-boundary problems to fluid flow and diffusion''. IMA J. Appl. Math. 42:155–175, 1989. doi:10.1093/imamat/42.2.155 Hocking, G. C., Sweatman, W., Fitt, A. D. and Breward, C. ``Deformations during jet-stripping in the galvanizing process''. J. Eng. Math. Tuck Special Issue, 70:297–306, 2011. doi:10.1007/s10665-010-9394-8 Thornton, J. A. and Graff, H. F. ``An analytical description of the jet-finishing process for hot-dip metallic coatings on strip''. Metal. Mat. Trans. B, 7:607–618, 1976. doi:10.1007/BF02698594 Tuck, E. O. ``Continuous coating with gravity and jet stripping''. Phys. Fluids, 26(9):2352–2358, 1983. doi:10.1063/1.864438 Tuck, E. O., Bentwich, M., and van der Hoek, J. ``The free boundary problem for gravity-driven unidirectional viscous flows''. IMA J. Appl. Math. 30:191–208, 1983. doi:10.1093/imamat/30.2.191
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Dissertations / Theses on the topic "Hot dip metallic coating"

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Pillar, Rachel Joanne, and rachel pillar@flinders edu au. "The Influence of Rolling Oil Decomposition Deposits on the Quality of 55Al-43.4Zn-1.6Si Alloy Coatings." Flinders University. School of Chemistry, Physics and Earth Sciences, 2007. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20080108.132120.

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Uncoated defects in hot dip metal-coated steel products result from non-wetting of the steel surface by the molten alloy. The occurrence of uncoated defects is highly detrimental to product quality and production efficiency; uncoated defects compromise the appearance and anti-corrosion performance of hot dip metal-coated steel products and causes time delays in the application of subsequent surface treatments. Although many studies have been directed towards evaluating the effect of steel pre-heat temperature and oxidation on the formation of uncoated defects, fewer investigations have analysed how oil-derived residues remaining on steel surface following the cold rolling and furnace cleaning processes impact upon hot dip metallic coating quality. Furthermore, although a considerable amount of research has focussed on the process of deposit formation in lubricants used in other applications, the composition of oily residues remaining after the continuous annealing process, and the origins of these residues in the original rolling oil formulation, are poorly understood. The primary focus of the present work has been to gain an improved understanding of relationships between cold rolling oil composition, oil residue-formation characteristics and the occurrence of uncoated defects in 55Al-43.4Zn-1.6Si hot dip metallic coatings. Several key classes of rolling oil ingredients which decompose to leave high levels of thermally-stable residue have been identified. The thermal decomposition processes undergone by a variety ingredients within these classes have been studied under both oxidising and reducing conditions using Thermogravimetric Analysis (TGA) and Pressure Differential Scanning Calorimetry (PDSC) techniques, with chemical characterisation of the decomposition process and the resultant thermally-stable residue by infrared spectroscopy. Model blends of each ingredient in a typical cold rolling oil base ester have also been evaluated by TGA and PDSC to identify the impact of ingredient concentration and chemical structure on the amount of oily residue formed. The results of these investigations have been related to the impact of the ingredients on 55Al-43.4Zn-1.6Si hot dip metallic coating quality through the performance of industrial-scale hot dipping trials and hot dip simulation studies. In order to translate these results into a context more closely aligned with industrial conditions, the effect of processing variables, including furnace atmosphere and the availability/concentration of iron in contact with the rolling oil at the steel surface, on the decomposition process of a fully-formulated commercial cold rolling oil has also been investigated. The information gained can potentially be used to tailor operating conditions within the cold rolling/continuous hot dip metallic coating processes to enhance steel surface cleanliness. Finally, the deposit-forming tendencies of an array of different commercial cold rolling oils have been evaluated, leading to the development of a thermal analysis-based test for screening cold rolling oils with respect to their likely impact upon 55Al-43.4Zn-1.6Si hot dip metallic coating quality. This test, together with the understanding obtained on the effect of different rolling oil ingredients on hot dip metallic coating quality, can be used within the industry to formulate improved cold rolling oils.
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Lodwig, Geraint Wyn. "Hot dip coating of high strength low carbon steels." Thesis, Swansea University, 2004. https://cronfa.swan.ac.uk/Record/cronfa42742.

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In response to increasing demand for high strength automotive steels, the development of galvanised dual phase steels has become more significant in recent years. At present, a requirement for galvanised high strength steels with tensile strengths in excess of 600 MPa exists within the automotive industry. The present programme focuses on seven C-Mn based steels, each steel varying in key additions such as silicon, chromium, vanadium, molybdenum and niobium. A composition range wt% of C (0.07-0.2), Mn (1.3-1.5), Si (0.05-1.3), Cr (0.05-0.45), V (up to 0.01), Mo (up to 0.01) and Nb (0.001-0.01) was studied. In order to attain these wide-ranging steel chemistries, both commercially produced and laboratory cast steels were used for this project. All steels had the required chemistry for dual phase steel production, but only if a suitable annealing cycle was used. As a result, all steels were subjected to a range of annealing cycles on a laboratory-annealing simulator, based on current continuous annealing/galvanising line schedules utilised by the Corus Group. Steels identified as dual phase steels from annealing experiments by microstructural and mechanical property analysis were subjected to laboratory galvanising. The zinc coating applied to these steels has been studied to evaluate the quality of the galvanised steel. This investigation, which has utilised a galvanising simulator, has demonstrated that during standard galvanising practices, problems known as dewetting affected the coating quality. Unfortunately, this issue was most prevalent with the steels displaying the most suitable metallurgical properties. Nevertheless, the wetting performance could be vastly improved by varying processing conditions such as annealing furnace dew point and strip entry temperature.
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Burris, Matthew L. "Material evaluation of liquid metal corrosion in Zn-Al hot-dip coating baths." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1400.

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Thesis (M.S.)--West Virginia University, 2000.
Title from document title page. Document formatted into pages; contains xi, 106 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 71-73).
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SURYANARAYANAN, KARTHIK. "INTEGRAL EPOXY RESIN-SILANE PRIMER SYSTEM FOR HOT-DIP GALVANIZED STEEL." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1130950464.

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Staudte, Jonas [Verfasser]. "Surface Conditioning of High-Strength Steels for Improved Hot-Dip Coating Behaviour / Jonas Staudte." Aachen : Shaker, 2003. http://d-nb.info/1179022173/34.

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Price, M. "Strip position measurement and control for consistency of zinc coating in hot-dip galvanising lines." Thesis, Swansea University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638578.

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The stability of the strip between the gas knives during the wiping stage of hot-dip galvanising is critical for consistent zinc coating mass. Variation in this coating mass can result in a product that does not meet customer requirements. A significant saving can be made on the amount of zinc used and the quality of the product will be enhanced if the tolerances on the coating mass are tightened. A dynamic distributed parameter model is developed for understanding strip vibration and design of a controller for stabilisation, and is implemented in the simulation package SIMULINK. The model can be stimulated at any point by a force input and the displacement and velocity of any point can be measured. A physical model has been developed, for the purposes of validation and for test purposes, and is a scale representation of the critical part of the hot-dipping process. The computer model and physical models can be matched by use of appropriate stimulation signals and the use of genetic algorithms. The matched models show a good correlation and the confidence in the model is high. Currently air cushions and touch rolls are used to stabilise strip and the effect of these systems on the strip can be shown using both the computer and physical models. The computer model is used to develop a control scheme using the techniques of root-locus and Nichols charts. The response of the controlled system is analysed using Bode plots and step responses and shown to be an improvement on the uncontrolled system. The actuator, sensor and electronics for physical realisation of the designed control scheme are also given. The work presented here shows the method of producing a control scheme for improving the stability of strip steel within hot-dip galvanising lines.
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Marsland, Wayne Edmund. "Positive release of hot-dip galvanised automotive material to prevent coating adhesion failure at customer." Thesis, Swansea University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.678444.

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Williams, Joseph James. "Surface reactions of zinc vapour with steel relevant to the Zn-55%Al-1.5%Si hot dip metal coating process." Faculty of Engineering, 2005. http://ro.uow.edu.au/theses/395.

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Zn-55%Al-1.5%Si coated steel strip is manufactured by the continuous hot dipping process. An important difference in the processing of Zn-55%Al-1.5%Si coated steel when compared with galvanised steel is the higher temperature of the molten alloy bath –600ºC for Zn-55%Al-1.5%Si coatings versus 450ºC for galvanised. This increase in temperature leads to an accelerated rate of evaporation of zinc into the pretreatment furnace, leading in turn to various processing difficulties. Zinc vapour in the pre-treatment furnace has long been implicated with defects known within the industry as pinholes and bare patches - uncoated areas where wetting does not occur between the strip and the molten alloy. Despite the association with zinc vapour, the exact mechanisms of pinhole and bare patch formation have not been clearly established. One possible mechanism of pinhole and bare patch formation is the direct reaction of zinc vapour with the strip surface. It has been suggested by industry experts that zinc vapour could condense on the strip, leaving a deposit that prevents wetting by molten Zn-55%Al-1.5%Si alloy. It remains that little is understood of the fundamental nature of the interaction between zinc vapour and a steel substrate. The purpose of this research was to examine the rates and mechanisms of zinc vapour condensation on clean and oxidised steel substrates. Such information is essential for understanding the reactions that occur in the metal coating line furnace. It is intended that this research will strengthen the fundamental knowledge base upon which a solution to the problem can be developed. The experimental work conducted in this study was centred on condensing zinc vapour onto substrates under specific gaseous atmospheres at atmospheric pressure. A major part of the work involved the development of a technique for depositing zinc vapour onto a steel substrate and the design and construction of an experimental apparatus. Preliminary studies were undertaken to define the design criteria for an apparatus in which the rate of condensation of zinc vapour could be measured accurately and the interaction between zinc vapour and clean and oxidised steel substrates could be examined. In this probing exercise, modifications were made to a proven design of an apparatus designed to measure evaporation rates of metals in inert gas atmospheres was used. The preliminary experiments provided a wealth of essential knowledge required to design an experimental facility in which it was possible to accurately measure the rate of condensation of zinc vapour and to study the interaction between zinc vapour and the steel substrate, as well as their potential chemical reactions. This new apparatus was specifically developed for a quantitative assessment of zinc vapour deposition, and allowed the substrate and zinc vapour to be heated in independent, but interconnecting chambers. The exposure of the substrate to the zinc vapour could be controlled with precision, and it was possible to not only measure the zinc vapour condensation rates, but also to assess the effect of using oxidising and reducing gasses during preheating of the substrate. Under conditions of high undercooling, zinc vapour deposited by the island plus continuous thin film mode, while at higher substrate temperatures, close to that expected in the industrial process, the zinc deposited more slowly, and zinc islands did not form on the substrate within the first 60 seconds of exposure. Deposition of zinc vapour on an oxidised substrate occurred at a much higher rate than on a clean steel substrate. This increase in deposition rate has been attributed to a direct reaction occurring between the zinc vapour and the iron oxide without the formation of any liquid condensate. The reaction is: Fe3O4(s) + 4Zn(v) ↔ 4ZnO(s) + 3Fe(s) This reaction will proceed to the right under sufficiently high partial pressures of zinc vapour, and at substrate temperatures both above and below the saturation temperature of the zinc vapour. It was observed that under sufficiently low partial pressures of zinc vapour, the above reaction is driven to the left. Zinc oxide has a determining influence on the wetting of the strip by the molten alloy. Immersion tests, wherein substrates deposited with zinc vapour were dipped into molten Zn-55%Al-1.5%Si alloy, were carried out to examine the effect of various zinc vapour reactions on the quality of the coatings. Deposition of zinc vapour on both clean and oxidised steel surfaces had a detrimental effect on the coating quality. In cases where zinc was deposited onto a clean steel substrate prior to immersion in the coating alloy, pinholes resulted, while zinc vapour deposition on an oxidised surface prior to immersion led to large scale uncoated areas.
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Brunnock, M. S. "Development of materials with improved resistance to molten metal attack in hot-dip zinc coating lines for strip steel products." Thesis, Swansea University, 1998. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636166.

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A study has been carried out of the resistance to molten zinc of a series of candidate materials. The object was to identify those that might be capable of increasing the service life of hot-dip galvanising bath hardware rolls. The testing involved immersing samples in a molten zinc alloy, representative of that used in commercial operations, at 455° and 480°C for periods up to 360 hours. For some programmes of tests the samples were rotated during immersion. The candidate materials ranged from uncoated low carbon steel, commercial and experimental stainless steels and cobalt-base superalloys to some of the same products covered with a variety of non-metallic and ceramic coatings. Although an Fe-18%Cr experimental alloy had poorer resistance to liquid zinc than low carbon steel, the further addition of 9%Ni to produce an experimental Type 304 stainless steel generated better liquid zinc resistance than low carbon steel. It is suggested that structure rather than compositional effects play an important part in this. Microstructures containing significant amounts of martensite appear to be particularly susceptible to zinc attack. There is, however, a compositional effect from silicon which, when varied in experimental cases of a Type 316 stainless steel, showed the same ability to influence coating microstructure as in carbon steels. The effectiveness of coatings was related to two factors: their inertness and their integrity. Some coatings, for example nitrided and titanium nitrided steel, appeared to be attacked by liquid zinc. Tungsten carbide/cobalt were also attacked unless an inert sealant had been applied. Ceramic oxide coatings consisting of a mixture of fine particles of alumina, chromia and silica proved highly effective in countering zinc attack. However discontinuities in inert coatings arising from the manufacturing process or from microsfissuring during periods of sharp temperature change promoted opportunities for zinc attack and undercutting of the coating. An unexpected phenomenon was observed on some semi-immersed samples. Liquid zinc attack occurred progressively above the liquid zinc meniscus to the formation of thick intermetallic layers. In some cases these layers engulfed the sample and sample holder. The phenomenon has been termed 'supermeniscus intermetallic climb' (SMIC).
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Aldén, Rickard. "Metallurgical investigation in weldability of Aluminium Silicon coated boron steel with different coating thickness." Thesis, KTH, Materialvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171209.

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Hot-pressed aluminium and silicon coated boron steel is used in the car industry where high tensile strength is of great importance, such as in the safety cage of a car where deformation has to be kept to a minimum in case of a collision. After hot-pressing the AlSi-boron steel shows excellent properties with high tensile strength, minimal spring back and also shows good protection against corrosion. A thickness of the AlSi coating of 150 [g/m2] for AlSi coated boron steel is typically used by the car industry today. However the coating thickness would be desirable to be minimized to 80 [g/m2]. Welding of this boron steel with 80 [g/m2]have shown difficulties; and it’s not clear why this occurs. In this report the metallurgical properties of the different coating layers will be investigated, simulations with Thermocalc module Dictra will be used, SEM/EDS will be used to characterize phases in coating layers and correlate to weldability. Resistance spot welding tests will also be performed where the welding parameters of pre-pulse, pulse time, time in between pulses and current will be varied to achieve desirable weld plug diameter without expulsion. Hardness testing in form of micro Vickers will executed. The Materials used will be USIBOR® 1500, AS80 with four different annealing times and one sample of AS150.
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Books on the topic "Hot dip metallic coating"

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Hot-Dip Galvanizing of Steel Structures. Elsevier Science & Technology Books, 2016.

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The 2006-2011 World Outlook for Metal Galvanizing and Other Hot Dip Metal Coating. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007-2012 World Outlook for Metal Galvanizing and Other Hot Dip Metal Coating. ICON Group International, Inc., 2006.

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Book chapters on the topic "Hot dip metallic coating"

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Bleck, W., and D. Beste. "Hot-dip Coating." In Modern Surface Technology, 221–37. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527608818.ch15.

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Hutchinson, Bevis, Jacek Komenda, and David Martin. "Vanadium Microalloyed High Strength Martensitic Steel Sheet For Hot-Dip Coating." In HSLA Steels 2015, Microalloying 2015 & Offshore Engineering Steels 2015, 533–40. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119223399.ch64.

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Hutchinson, Bevis, Jacek Komenda, and David Martin. "Vanadium Microalloyed High Strength Martensitic Steel Sheet for Hot-Dip Coating." In HSLA Steels 2015, Microalloying 2015 & Offshore Engineering Steels 2015, 535–40. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48767-0_64.

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Peng, Wangjun, Guangxin Wu, Xuan Dai, Jieyu Zhang, Weidong Hu, and Kuochih Chou. "Grain Refinement Behavior of Al-Zn-Si Alloy by Inoculation in Hot-Dip Coating." In Light Metals 2015, 301–6. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093435.ch51.

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Peng, Wangjun, Guangxin Wu, Xuan Dai, Jieyu Zhang, Weidong Hu, and Kuochih Chou. "Grain Refinement Behavior of Al-Zn-Si Alloy by Inoculation in Hot-Dip Coating." In Light Metals 2015, 301–6. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48248-4_51.

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Fiedler, Torben, Joachim Rösler, Martin Bäker, Felix Hötte, Christoph von Sethe, Dennis Daub, Matthias Haupt, Oskar J. Haidn, Burkard Esser, and Ali Gülhan. "Mechanical Integrity of Thermal Barrier Coatings: Coating Development and Micromechanics." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 295–307. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_19.

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Abstract To protect the copper liners of liquid-fuel rocket combustion chambers, a thermal barrier coating can be applied. Previously, a new metallic coating system was developed, consisting of a NiCuCrAl bond-coat and a Rene 80 top-coat, applied with high velocity oxyfuel spray (HVOF). The coatings are tested in laser cycling experiments to develop a detailed failure model, and critical loads for coating failure were defined. In this work, a coating system is designed for a generic engine to demonstrate the benefits of TBCs in rocket engines, and the mechanical loads and possible coating failure are analysed. Finally, the coatings are tested in a hypersonic wind tunnel with surface temperatures of 1350 K and above, where no coating failure was observed. Furthermore, cyclic experiments with a subscale combustion chamber were carried out. With a diffusion heat treatment, no large-scale coating delamination was observed, but the coating cracked vertically due to large cooling-induced stresses. These cracks are inevitable in rocket engines due to the very large thermal-strain differences between hot coating and cooled substrate. It is supposed that the cracks can be tolerated in rocket-engine application.
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Honda, Kazuhiko, Kohsaku Ushioda, and Wataru Yamada. "Nucleation of the Primary Al Phase on TiAl3 during Solidification of a Hot-Dip Zn-11%Al-3%Mg-0.2%Si Coating on Steel Sheet." In Ceramic Transactions Series, 355–62. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470444214.ch37.

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"2. Hot-dip galvanizing." In COATING PROTECTION FOR REINFORCEMENT, 5–24. Thomas Telford Publishing, 1995. http://dx.doi.org/10.1680/cpfr.35386.0002.

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Kuklík, Vlastimil, and Jan Kudláček. "Hot-dip galvanized coating formation." In Hot-Dip Galvanizing of Steel Structures, 29–39. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-08-100753-2.00004-5.

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Kuklík, Vlastimil, and Jan Kudláček. "List of selected zinc coating technologies." In Hot-Dip Galvanizing of Steel Structures, 1–5. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-08-100753-2.00001-x.

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Conference papers on the topic "Hot dip metallic coating"

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Goggins, K. M., and A. R. Marder. "Coating Formability Evaluation Method for Hot-Dip Galvannealed Sheet." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1992. http://dx.doi.org/10.4271/920175.

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Mathieu, Suzanne, and Pascal Patou. "Zinc Coating Influence on Spot-Weldability of Hot-Dip Galvanized Steel Sheets." In SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1985. http://dx.doi.org/10.4271/850273.

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Zheng, Yuwei, Shengxiang Bao, Zhenzhen Rao, Chengshi Zhang, and Yao Yan. "Failure analysis of the winding inductor caused by hot dip coating tin." In 2014 15th International Conference on Electronic Packaging Technology (ICEPT). IEEE, 2014. http://dx.doi.org/10.1109/icept.2014.6922816.

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Zheng, Yuwei, Shengxiang Bao, Zhenzhen Rao, Chengshi Zhang, and Yao Yan. "Failure analysis of the winding inductor caused by hot dip coating tin." In 2014 Joint IEEE International Symposium on the Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM). IEEE, 2014. http://dx.doi.org/10.1109/isaf.2014.6918025.

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Gosset, Anne, and Jean-Marie Buchlin. "Hot-Dip Galvanization and Jet Wiping Technique." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98331.

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This paper presents an analysis of the jet wiping process in hot-dip galvanization. This technique consists in reducing the liquid film thickness on a moving substrate by applying gas slot jets. A theoretical development allows the computation of the film thickness distribution in the wiping zone. It is further simplified to an engineering model which predicts the final coating thickness, in good agreement with wiping experiments, as well as numerical simulations. The limit of applicability of jet wiping is due to the occurence of a violent film instability, called splashing, which takes the form of a liquid droplet emission just below the nozzle. An experimental investigation of this phenomenon is conducted on a water model facility. Two nozzle designs are tested. The effect of the process parameters such as the strip speed, the nozzle pressure, the standoff distance and the tilt angle of the nozzle on splashing is emphasized. A dimensionless correlation is established to allow the prediction of the operating conditions leading to splashing occurence. It is confronted to observations made on galvanization lines.
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Cai, J., J. Li, Q. Chao, E. Pavlina, and P. Hodgson. "Grain Size and Texture Study of Controlled Skin-Passed Hot-Dip Galvanized Coating." In The 2nd International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813140622_0043.

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Couto, Camila Pucci, Marco Antonio Colosio, Isolda Costa, Luzinete Pereira Barbosa, Zehbour Panossian, and Jesualdo Luiz Rossi. "Characterization of 22MnB5 steel metallic coated with either hot-dip AlSi or electroplated ZnNi before and after hot stamping." In 2018 SAE Brasil Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2018. http://dx.doi.org/10.4271/2018-36-0074.

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Saber, Hamed H. "Performance of a Skutterudite-based Segmented Unicouple with a Metallic Coating Near Hot Junction." In SPACE TECHNOLOGY AND APPLICATIONS INT.FORUM-STAIF 2005: Conf.Thermophys in Micrograv;Conf Comm/Civil Next Gen.Space Transp; 22nd Symp Space Nucl.Powr Propuls.;Conf.Human/Robotic Techn.Nat'l Vision Space Expl.; 3rd Symp Space Colon.; 2nd Symp.New Frontiers. AIP, 2005. http://dx.doi.org/10.1063/1.1867175.

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Lin, Dong, Sergey Suslov, Chang Ye, Yiliang Liao, C. Richard Liu, and Gary J. Cheng. "Nanoparticles Embedding Into Metallic Materials by Laser Direct Irradiation." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7379.

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We report a method to half-embed nanoparticles into metallic materials. Transparent and opaque nanoparticle (laser wavelength 1064 nm) were both successfully half-embedded (partial part of nanoparticles embedded into matrix while other parts still stay above the matrix) into metallic materials. Nanoparticles were coated on sample surface by dip coating before laser irradiation. After laser irradiation of different pulses and laser fluencies, nanoparticles were embedded into metal. The mechanism and process of embedding were investigated.
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Mao, Kai, Yong-Li Yang, Zhe Huang, and Dan-yang Yang. "Coating Thickness Modeling and Prediction for Hot-dip Galvanized Steel Strip Based on GA-BP Neural Network." In 2020 Chinese Control And Decision Conference (CCDC). IEEE, 2020. http://dx.doi.org/10.1109/ccdc49329.2020.9164854.

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Reports on the topic "Hot dip metallic coating"

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An operator dies of crushing injuries when caught between bridle rollers of a hot dip coating line. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, February 1997. http://dx.doi.org/10.26616/nioshsface96md038.

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