Deformation Behavior of Crystalline Cr–Ni Multilayer Coatings by Using Molecular Dynamics Simulation

This work shows the atomic scale deformation behavior of crystalline multilayer coating comprising up to five Cr and Ni layers. A molecular dynamics simulation was conducted visualize during indentation/unloading scratch. Normal shear directional forces were recorded compare repulsion friction between models scratch simulations. Dislocation lines within layers quantified understand each model. Atomic dislocation after indentation visualized. Generation movement a single line also visualized few picoseconds. The five-layer model showed lowest values among models. unloading stiffness calculated be amount plastic wear volume one-layer highest number an increasing trend density might aid in enhancement resistance reduce when scratched.