根据连续统力学和 Mori-Tanaka 吝啬的地理论,认为两个是导致转变的粘性(旅行) 效果和旅行的无弹性的紧张恢复行为的一个微机械的流动压力模型多相的钢被介绍。在成分阶段和塑料紧张的体积部分之间的关系被介绍描绘旅行钢的导致转变的粘性效果。TRIP600 钢的 Loading-unloading-reloading 单轴的紧张测试被执行,在卸掉以后的紧张恢复行为被分析。从试验性的数据,实验有弹性的模量表情被提取描绘无弹性的紧张恢复。有试验性的数据的预言的流动压力的比较显示出一个好协议。导致转变的粘性效果和对流动压力起作用的无弹性的恢复效果的机制也详细被讨论。
On the basis of continuum mechanics and the Mori-Tanaka mean field theory, a micro-mechanical flow stress model that considered both the transformation-induced plasticity (TRIP) effect and the inelastic strain recovery behavior of TRIP multiphase steels was presented. The relation between the volume fraction of constituent phases and plastic strain was introduced to characterize the transformation-induced plasticity effect of TRIP steels. Loading-unloading-reloading uniaxial tension tests of TRIP600 steel were carried out and the strain recovery behavior after unloading was analyzed. From the experimental data, an empirical elastic modulus expression is extracted to characterize the inelastic strain recovery. A comparison of the predicted flow stress with the experimental data shows a good agreement. The mechanism of the transformation-induced plasticity effect and the inelastic recovery effect acting on the flow stress is also discussed in detail.