A Morphological Approach to the Modeling of the Cold Spray Process
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A coating buildup model was developed, the aim of which was simulating the microstructure of a tantalum coating cold sprayed onto a copper substrate. To do so, first was operated a fine characterization of the irregular tantalum powder in 3D, using x-ray microtomography and developing specific image analysis algorithms. Particles were grouped by shape in seven classes. Afterward, 3D finite element simulations of the impact of the previously observed particles were realized. To finish, a coating buildup model was developed, based on the results of finite element simulations of particle impact. In its first version, this model is limited to 2D.
Keywordscold spray modeling of coating formation process modeling splat morphology tomography
List of Abbreviations
Scanning electron microscopy
European synchrotron radiation facility
Principal axes of inertia
Principal component analysis
Equation of state
The authors are grateful to CEA DAM and to the Institute Carnot-M.I.N.E.S. for the financial support of this study.
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