回火时间对2300 MPa屈服强度应变-时效中锰钢组织性能的影响

刘炫业, 刘屹, 汪净, 肖大恒, 贾蕴航, 李春雨, 李云杰, 袁国, 王国栋

Influence of Tempering Duration on Microstructural Evolution and Mechanical Behavior of Strain-aged Medium-manganese Steel with 2300 MPa Yield Strength

LIU Xuanye, LIU Yi, WANG Jing, XIAO Daheng, JIA Yunhang, LI Chunyu, LI Yunjie, YUAN Guo, WANG Guodong

表1 不同回火时间试样的力学性能

Table 1 Mechanical properties of experimental steel at different tempering times

Process Yield strength / MPa Tensile strength / MPa Uniform elongation / % Total elongation / % Initial sample 1025 2154 12.5 16.7 20 min 2198 2321 10.3 19.3 1 h 2301 2289 10 18.6 2 h 2311 2297 9.1 17.1