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

图6 铸态样品经不同变形量压缩后的EBSD晶界特征、局域取向差分布和晶粒取向图

Fig.6 Grain boundary maps (a, c, e), corresponding local misorientation maps (b, d), and inverse pole figure (IPF) (f) of as-cast samples with the strains of 0.22 (a, b), 0.36 (c, d), and 0.92 (e, f) (In Figs.6a, c, and e, the black and green lines indicate the high angle grain boundaries (misorientation angle > 15°) and low angle grain boundaries (misorientation angle 2°-15°), respectively; pink color represents the δ-ferrite; the same in figures below. CD—compression direction)