摘要
利用XRD、TEM、SEM和拉伸实验等分析测试方法研究了18-18-0.5N高氮奥氏体不锈钢在冷轧变形过程中的组织演变和形变强化规律.结果发现:18-18-0.5N高氮奥氏体不锈钢在冷变形过程中并未发生形变诱导相变,微观组织和力学性能在变形量为43.8%附近出现转折.提出了屈服强度随应变变化的预测方程.
XRD, TEM, SEM and tension testing were used to investigate the microstructure evolution and mechanical hardening of 18-18-0.5N high-nitrogen austenitic stainless steel during cold rolling. The experimental results show that there is no sign of deformation-induced phase transformation. A inflection point of microstructure and mechanical properties was found at 43.8 % reduction. An excellent predicting equation of yield strength to strain was presented.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2008年第8期875-879,共5页
Journal of University of Science and Technology Beijing
关键词
高氮奥氏体不锈钢
冷轧
组织演变
形变强化
high-nitrogen austenitic stainless steel
cold rolling
microstructure evolution
mechanical hardening
