Influence of Powder Type and Substrate Hardness on the Deposition Behavior of WC-17Co Particle in Cold Spraying
In this study, the influence of particle type and substrate hardness on the deposition behavior of single WC-17Co particle during the cold spraying process was investigated. The morphology of the deposited particles was examined by scanning electron microscopy (SEM) from the particle surface and cross-sections. It was found that with increasing substrate hardness, the deposition behavior of WC-17Co particles transformed from completely embedding into soft substrate to partially flattening and even rebounding from the hard substrate. In the comparison between different powder types, spherical nanostructured WC-17Co particles experienced the more intensive deformation due to the smaller WC size.
H. T. Wang et al., "Influence of Powder Type and Substrate Hardness on the Deposition Behavior of WC-17Co Particle in Cold Spraying", Advanced Materials Research, Vols. 314-316, pp. 176-180, 2011