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金属学报  1999 

Cu-Zn-Al双程记忆合金中Ⅱ类孪晶的界面观察

, PP. 371-374

Keywords: 形状记忆合金,Ⅱ类旋转孪晶,孪晶界面

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Abstract:

用高分辨电镜观察了Cu-Zn-Al双程记忆合金中9R型热弹性马氏体内AB型变体对及其界面结构,变体A和B以「011」β(即「591」9R)为轴旋转了180°,呈Ⅱ类孪晶取向关系.AB型变体对还具有(114)「110」9R,A〃(114)「192」9R,B取向关系,在这一取向下,观察发现堆垛缺陷仅存在于变体A中,变体A与B以共格界面相匹配.

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