等通道转角挤(ECAP)是一种通过大塑性变形获得金属块体超细晶材料的加工技术.使用有限元法实现对ECAP加工过程及相关参数的数值模拟,分析成形过程中的应力应变分布及其主要参数影响规律,可以为更深入研究ECAP的内部变形机理以及优化工艺参数提供直观有力的数据.总结概述了目前国内外对ECAP加工过程及相关参数有限元模拟工作的主要内容和结果.
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