SUS304亚稳态奥氏体不锈钢马氏体转变量与变形模式的关系研究

Based on tensile tests, the effect of tensile strain rate on martensite volume fraction was investigated. The martensite volume fraction increases obviously when the strain rate is lower than 0.005/s. However, when the value is higher than 0.005/s, the martensite volume fraction fewly changes. Based on Cross-die drawing, the relationship between marteniste volume fraction and strain path under different stress states was studied. The more strain causes a higher martensite volume fraction. The amount of martensite under two compressive stress and a tensile state is the highest followed by uniaxial tension and plane strain. Biaxial tension stress state results in the least one.