A Discussion of Schmid Factors for Twinning in B.C.C. Crystals

Metal Science Journal Pub Date : 1900-01-01 DOI:10.1179/MSC.1967.1.1.94

D. Williams

引用次数: 5

Abstract

AbstractThe Schmid Factors for the twelve {112}〈111〉 twinning systems in body-centred cubic crystals have been calculated. From these, the orientations that will give a crystal the greatest probability of twinning on one system only are derived. These orientations are [1.189, 2, 2] for crystals tested in compression and [1, 1.667, 2] for crystals tested in tension. As the maximum Schmid Factor for {l01}〈111〉 slip is high and the maximum Schmid Factor for twinning in tension is low at [1, 1.667, 2], it is concluded that testing in compression at [1.189, 2,2] will give the greatest probability of producing one, and only one, family of twins.

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b.c.c晶体中孪生的施密德因子的讨论

摘要本文计算了体心立方晶体中12个{112}< 111 >孪晶体系的施密德因子。由此，我们推导出了使晶体在一个体系上有最大孪晶可能性的取向。这些取向在压缩条件下为[1.189,2,2]，在拉伸条件下为[1,1.667,2]。由于{01}< 111 >滑移的最大施密德因子很高，而在拉伸条件下孪生的最大施密德因子在[1,1.667,2]处很低，因此可以得出结论，在压缩条件下进行试验，在[1.189,2,2]处产生一个且只有一个双胞胎家族的概率最大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Metal Science Journal

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