Slip Systems and Their Critical Shear Stress in 3% Silicon Iron
Slip Systems and Their Critical Shear Stress in 3% Silicon Iron
复制标题
滑移%20系统%20和%20其%20临界%20剪切%20应力%20in%203%%20硅%20铁
DOI：
10.1143/jpsj.19.701
复制
发表时间：
1964
影响因子：
1.7
通讯作者：
E. Furubayashi
中科院分区：
文献类型：
--
作者：
T. Taoka;S. Takeuchi;E. Furubayashi
控制取向的3%硅铁单晶在20℃~ -196℃之间以不同应变速率拉伸变形。系统地选择了方向，使最大剪应力在低折射率平面上。通过地表观测和屈服应力分析对有效滑移体系进行了检验。结果表明存在{112}体系和{110}体系。两种体系的临界剪应力温度依赖性分别测定，{112}体系的临界剪应力温度依赖性强于{110}体系。{112}平面上两个相反方向的滑移临界剪应力相差5%。对临界剪应力的应变速率依赖关系进行了研究，发现它是由位错速度的应力依赖关系推导出来的。
Single crystals of 3% silicon iron with controlled orientation were deformed in tension between 20°C and -196°C at various strain-rates. The orientation was systematically selected so that the maximum shear stress was in direction on low index planes. The operative slip systems were examined by surface observation and analysis of yield stress. The result showed the existence of {112} system as well as {110} system. The temperature dependence of critical shear stress of the two systems was separately determined and that of {112} system was stronger than that of {110} system. The critical shear stress for slip is different by 5% between two opposite directions on {112} plane. The strain-rate dependence of critical shear stress was also examined and found to be derived from the stress dependence of dislocation velocity.