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

表3 修正C-J模型中各阶段应变硬化能力及转变点应变

Table 3 Strain hardening capacities and transition point strains in each stage for the modified C-J model

Strain rate / s-1 |1 / a|I |1 / a|II |1 / a|III εI-II εII-III 10-4 0.49 0.42 0.26 0.084 0.163 10-3 0.43 0.39 0.23 0.079 0.151 10-2 0.41 0.31 0.17 0.066 0.138 10-1 0.37 0.21 0.11 0.061 0.114