Multiscale simulation and nanoindentation experimental study of initial plasticity of Fe single crystal

摘要

It is very important to understand the initial plastic behavior of metals at microscale.In order to research the initial plasticity of body centered cubic metals in micro-/nano-scale,the multiscale simulation method and experimental study were used to study the nanoindentation process of Fe single crystal.The results show that the first abruption of load-displacement curve in nanoindentation of Fe single crystal can be attributed to the first transition from elastic to plastic deformation characterized by the dislocation emission.