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金属学报  1999 

{123}〈111〉多滑移的屈服顶点

, PP. 796-800

Keywords: 屈服顶点,多滑移,应力空间,塑性变形,金属

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Abstract:

从Tylor-Bishop-Hill理论出发,系统分析和计算了bcc金属在{123}〈111〉滑移系上滑移的单晶屈服面,发现共有338种应力状态,并将它们按晶体结构的对称性加以分类.结果表明,所有的屈服顶点共可分为14组,它们分别活化5,6或8个滑移系,依赖于结晶学上不等价的滑移系组.

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