<strong>Ni</strong>含量对高强度低合金钢淬透性影响的晶体学认识

Ni含量对高强度低合金钢淬透性影响的晶体学认识

苏帅, 韩鹏, 杨善武, 王华, 金耀辉, 尚成嘉

Crystallographic Understanding of the Effect of Ni Content on the Hardenability of High-Strength Low-Alloy Steel

SU Shuai, HAN Peng, YANG Shanwu, WANG Hua, JIN Yaohui, SHANG Chengjia

表5 磁性和非磁性项的自由能近似函数表达式^[33]

Table 5 Approximate representations of the free energy components for the γ→α transformation in pure iron^[33]

Function	$a$	$b$	Temperature range
$Δ G_{N M}^{γ \to α}$ = a + bT (J·mol^-1)	-6660	7	900 K > T > 300 K
$Δ G_{N M}^{γ \to α}$ = a + bT (J·mol^-1)	650	-1	900 K > T > 620 K
$Δ G_{M}^{γ \to α}$ = a + bT (J·mol^-1)	0	0	T < 620 K