Residual stress in coatings produced by cold spray
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Date
2013-11-21
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Trans Tech Publications
Abstract
Cold spray technology is used to produce metal coatings with a variety of functions, including surface corrosion protection, improvement of wear resistance, etc. Cold sprayed materials exhibit a wide range of behaviours resulting in large variation of spraying efficiency, coating properties, quality and performance in service. Residual stress, being a result and attribute of the deposition process, can be studied to test whether the coating is in tension/compression stress state and also to provide information about the thermo-mechanical history of the material during the deposition process. Residual stress distributions in a variety of coating materials have been studied by neutron diffraction. Through-thickness residual stress profiles show that the stress magnitude varies significantly and depends mainly on the mechanical properties of the coating material.
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Keywords
Corrosion protection, Wear resistance, Spray coating, Deposition, Residual stresses, Mechanical properties
Citation
Luzin, V., Spencer, K., Zhang, M., & Matthews, N. (2013 ). Residual stress in coatings produced by cold spray. Paper presented to the 6th International Conference on Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation (MECA SENS VI), 7th to 9th September 2011, University of Hamburg. In H. Günter Brokmeier, M. Müller, P. Klaus Pranzas, A. Schreyer & P. Staron (Eds.), Materials Science Forum, 772, 155-159. doi:10.4028/www.scientific.net/MSF.772.155