Deposition of Alloyed HCP Metals through Kinetic Spray Process

Earlier studies found difficulty in deposition of some HCP metals such as titanium through kinetic spraying. It is found that alloying d electron rich elements such as vanadium, tantalum, and niobium with HCP metals enhances the plastic deformability as it increases the d electron number density which leads to more slip systems. In this study, coatings were prepared from pure and alloyed HCP metals (titanium and zirconium) with 5 weight percentage of tantalum in order to study the deformation behavior and the effect of alloying. The coating properties were characterized through X-ray diffraction, scanning electron microscopy, and porosity analysis for pure and alloyed HCP metal coatings and compared.