Effect of preheating on deformation in cold spraying dissimilar combinations

Abstract

The present paper used an Eulerian model to study effects of the substrate material and the substrate temperature on the particle deformation behaviour in cold spraying dissimilar particle/substrate combinations. Results show that the deformation pattern of the particle presents a spreading and penetration way for soft/hard and hard/soft particle/substrate material combinations respectively. In addition, preheating the substrate can achieve a coordinated deformation pattern for the soft/hard particle/substrate material combination and a maximum steady PEEQ ranging in 3·2–3·5 in the present study.

Keywords:

• Cold spraying
• Preheating
• Numerical simulation
• Deformation behaviour

Acknowledgements

The author Min YU would like to thank for financial support from Marie-Curie Actions and China Scholarship Council. The author Wenya LI would like to thank for financial support from the Fok Ying-Tong Education Foundation for Young Teachers in the Higher Education Institutions of China (131052).