δ-铁素体对钠冷快堆用316KD奥氏体不锈钢热变形行为和动态再结晶的影响

陈胜虎, 王琪玉, 姜海昌, 戎利建

Effect of δ-Ferrite on Hot Deformation and Recrystallization of 316KD Austenitic Stainless Steel for Sodium-Cooled Fast Reactor Application

CHEN Shenghu, WANG Qiyu, JIANG Haichang, RONG Lijian

表1 δ-铁素体等温转变动力学方程中时间指数(n)和反应速率常数(k)的计算值

Table 1 Time exponent (n) and rate constant (k) values in Johnson-Mehl-Avrami-Kolmogorov (JMAK) equation obtained from Fig.4a during isothermal transformation of δ-ferrite

T / K n k r 1323 1.173 8.77 × 10-6 0.993 1423 1.079 4.82 × 10-5 0.984 1473 1.035 8.76 × 10-5 0.995