Abstract: “By using finite element method (FEM), we investigate hardening behavior during wiredrawing of ultra-fine stainless steel. To incorporate microstructural changes in polycrystalline grains of austenite stainless steel, slip systems are actually placed in cubic crystal lattice, and a crystal plasticity (CP) FEM analysis is performed. Some parameters (for example, initial hardening rates, and etc.) required in CP-FEM of stainless steel are missing and they are supposed to be difficult to obtain experimentally. Therefore, a series of uni-axial tensile simulations are conducted to determine those parameters which reproduce the experiment. Then, we performed CP-FEM simulations under multi-axial stress conditions corresponding to the wiredrawing condition to investigate the distribution of equivalent strain and stress. The results show that stress and strain tend to decrease towards the surface region, which suggests that hardening b”

Keywords: Finite element simulation, Wiredrawing, Crystal plasticity, Multi-scale analysis, Stainless steel, Hardening