EFFECTS OF INDENTER RADIUS ON MECHANICAL PROPERTIES AND DEFORMATION BEHAVIOR OF Cu50Zr50 METALLIC GLASSES IN INDENTATION AND SCRATCHING PROCESS
In this paper, a combination between the indentation and scratching process was developed to analyze the deformation mechanisms and mechanical properties of Cu50Zr50 metallic glasses (MGs) using molecular dynamics (MD) simulation. The deformation mechanisms and mechanical properties of Cu50Zr50 MGs are appraised through the surface morphology, pile-up height, hardness, machining forces, and resistance coefficient. The influences of different indenter radius are clearly investigated. The results exhibit that the machining zone increases as increasing indenter radius. The pile-up height and hardness reduce with a bigger radius of the indenter. The hardness values range from 7.94 to 13.33 GPa. The forces increase, however, the resistance coefficient decreases as the indenter radius increases.
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