1300 MPa级0.14C-2.72Mn-1.3Si钢的显微组织和力学性能及加工硬化行为
赵征志, 佟婷婷, 赵爱民, 何青, 董瑞, 赵复庆

MICROSTRUCTURE, MECHANICAL PROPERTIES AND WORK HARDENING BEHAVIOR OF 1300 MPa GRADE 0.14C-2.72Mn-1.3Si STEEL
ZHAO Zhengzhi, TONG Tingting, ZHAO Aimin, HE Qing, DONG Rui, ZHAO Fuqing
表2 实验钢不同硬化阶段应力指数m及转变点的应变
Table 2 Stress exponents and strain at the transition points in deformation stages of tested steels by the modified C-J analysis
T / ℃ mI mII mIII etr1 / %
(mI →mII)
etr2 / %
(mII→mIII)
760 2.9 2.0 6.7 0.9 1.8
780 2.6 3.0 8.0 0.8 1.6
800 - 2.8 8.0 - 1.3
820 - 3.3 8.7 - 1.3