综述了等径弯曲通道变形制备FCC、BCC、HCP金属材料中织构的研究进展.介绍了ECAP变形织构的主要研究方法——蚀坑法、X射线衍射法、中子多晶体衍射法和电子背散射衍射法,论述了挤压路径、挤压道次、挤压温度、模具夹角、形变孪晶、初始织构等对ECAP变形过程织构演变及形成机理的影响,并对基于物理过程的织构演化模型(全约束Taylor多晶体模型和粘塑性自洽多晶体模型)进行评价,同时进一步指出织构演化研究的重要性及发展趋势.
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