应变速率对<strong>X80</strong>管线钢铁素体<strong>/</strong>贝氏体应变分配行为的影响

应变速率对X80管线钢铁素体/贝氏体应变分配行为的影响

王楠, 陈永楠, 赵秦阳, 武刚, 张震, 罗金恒

Effect of Strain Rate on the Strain Partitioning Behavior of Ferrite/Bainite in X80 Pipeline Steel

WANG Nan, CHEN Yongnan, ZHAO Qinyang, WU Gang, ZHANG Zhen, LUO Jinheng

图1 基于X80管线钢金相组织建立代表性体积元(RVE)模型示意图及铁素体和贝氏体的真应力-应变曲线

Fig.1 Schematics of making representative volume element (RVE) model (a-e) and true stress-strain curves of ferrite and bainite (f)
(a) OM image (b) locally magnified OM image (c) binarization model
(d) boundary line model (e) boundary condition of displacement (U_x and U represent the displacement of x-axis and boundary displacement direction, respectively)