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7 几何必需位错(GNDs)堆积引起的背应力示意图和不同应变速率后的GNDs密度分布

Fig.7 Schematic of back stress caused by geometrically necessary dislocations (GNDs) accumulation (a) and GND densities after different strain rates (b)