等通道转角挤压(equal channel angular pressing,ECAP)是一种强塑性变形技术,能有效细化材料的微观组织,提高材料性能,改善难变形材料的成形性.简述了ECAP技术制备超细晶钛合金的原理和技术现状,分析了不同工艺参数对钛合金ECAP变形过程和材料性能的影响以及晶粒细化的微观机制.
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