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.”

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