Effect of electric field direction on the interdiffusion of Ni-Al binary alloys

Abstract

The effect of electric field direction on atomic diffusion in NiAl binary alloy was investigated using molecular dynamics simulation method. Different interfacial diffusion models for NiAl binary alloy were simulated, and an electric field was applied on the Ni(110)//Al(110) interface diffusion model to study the effect of electric field direction on the diffusion behavior of Ni and Al atoms. The results indicated that, due to the difference in activation energies for Ni and Al atom inter-diffusion, applying an electric field in the same direction as the inter-diffusion of Ni atoms facilitates the inter-diffusion of Ni and Al atoms.