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摘要：
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概述了等径角挤压(Equal Channel Angular Pressing)制备超细晶材料工艺的研究进展;介绍了ECAP的技术原理和工艺特点;着重分析了ECAP模具对ECAP细晶材料的显微组织的影响,优化ECAP模具结构。
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The paper summarizes progress in preparing ultrafine-grained materials through equal channel angular pressing.The mechanism and characters of equal channel angular pressing are introduced,especially emphasizes dies and optimizes die geometries and parameters.
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基金项目：
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湖南省教育厅资助科研项目(05c003)
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作者简介：
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参考文献：
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