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。
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.
本文对板条状马氏体的惯习面和位向关系、板条间相对取向关系的孪晶学说和其它论点以及板条状马氏体形态模型进行了讨论。
The paper discusses the twin theory and other theses on the habit plane of the lath martensite, the direction relationship and the relative oriented relationship between laths.
结果表明，各状态试样组织中孪晶的出现，淬火温度、冷却速度的影响是次要的，与合金中的合金元素镍、铬、铜有更密切的关系。
The results show that, the presence of twinning martensite should be attributed to alloying elements addition in steel, and the austenitizing temperature, and cooling rate are not important factors.
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