Microstructural feature and evolution of nano-twin bulk Cu specimens produced by means of dynamic plastic deformation at liquid nitrogen temperature (LNT-DPD) have been studied using tem.
利用透射电子显微镜，对液氮温度下动态塑性形变法(LNT - DPD)制备的块体纳米孪晶铜在不同形变量下的微观结构演变进行了研究。
Plenty of twin relationships are determined in the 20%mn steel and there exists the dependence of the formation of martensite induced by deformation on grain orientations of austenite.
确定了含锰20%的高锰钢中大量的孪晶关系和形变时诱导出的马氏体有明显的取向选择性。
During the deformation, differential stress inferred by use of calcite twin lamellae is more than 500 bar, and mechanics of stepped thrust faults is.
在变形过程中，断层活动的差异应力值，根据方解石双晶发育程度推导，得出在500巴以上。
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