不锈钢复合钢筋近界面微观组织演变及元素扩散动力学

郭星星, 帅美荣, 楚志兵, 李玉贵, 谢广明

Microstructure Evolution Near Interface and the Element Diffusion Dynamics of the Composite Stainless Steel Rebar

GUO Xingxing, SHUAI Meirong, CHU Zhibing, LI Yugui, XIE Guangming

图4 不锈钢复合钢筋在1100 ℃不同压下率时复合界面再结晶晶粒分布图和不锈钢侧晶界取向差分布直方图

Fig.4 Distributions of dynamic recrystallized grains (a, c, e) and corresponding stainless steel side grain boundary orientation distribution maps (b, d, f) of the composite interface of composite stainless steel rebar with reduction rates of 20% (a, b), 40% (c, d), and 60% (e, f) at 1100 oC (The green, yellow, and blue regions in Figs.4a, c, and e represent deformed, substructure, and recrystallized grains, respectively. The black and red lines in Figs.4a, c, and e represent boundaries with θ ≥ 15° and Ʃ3 twin boundaries, respectively. θ¯ is average misorientation angle of the boundary in Figs.4b, d, and f)