Comparing the change of stress and strain rate distribution in the extrusion process finds that where plastic deformation is large, the corresponding equivalent stress is large too.
对挤压变形过程中金属的应力和应变速率的变化情况进行了对比，发现金属变形时塑性变形较大的位置，对应的等效应力也较大。
Meanwhile the initial strain rate and strain temperature affect the austenite grain size and distribution of precipitation phase.
同时，初始应变速率和变形温度影响奥氏体晶粒尺寸和析出相的分布。
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