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3 实验钢退火后等效晶粒尺寸及n的极值

Table 3 Equivalent grain size of tested steel after annealing and the extreme values of n

T / ℃	d_F μm	d_M μm	$\begin{matrix} \sqrt{f_{M} / d_{M}} \end{matrix}$ (%·μm^-1)^1/2	n_min	n_max	n_max-n_min
760	4.6	0.23	11.07	0.38	0.58	0.20
780	3.7	0.51	9.34	0.46	0.62	0.16
800	2.2	0.82	9.11	0.47	0.63	0.16
820	1.3	1.42	7.04	0.54	0.64	0.10