Evaluation of Nanostructured coating layers formed on Ni balls during mechanical alloying of Cu powder

▶ A novel coating method was used to deposit a nickel-copper solid solution on the surface of nickel balls in a planetary ball mill. ▶ Diffusion is caused by the impact of nickel balls in addition to the formation of Ni-Cu solid solution as a surface coating layer. ▶ XRD results revealed the presence of a solid solution and nanocrystalline structure on the surface.