Cu－Zn－Al（Mn）形状记忆合金冷拉丝织构研究  

STUDY ON TEXTURE OF COLD DRAWN WIRE OF Cu- Zn-AL(Mn)SHAPE MEMORY ALLOYS

作　　者：王超群[1] 千东范[1] 孙丽虹[1] 张宝珍[1] 徐林[1] 

机构地区：[1]北京有色金属研究总院

出　　处：《有色金属》1996年第1期69-74,共6页Nonferrous Metals

基　　金：国家自然科学基金

摘　　要：用三维取向分布函数（ＯＤＦ）研究冷拉Ｃｕ－Ｚｎ－Ａｌ合金线材的织构。该合金经９５％冷拉变形和适当的热处理可获得相对细的晶粒组织、利于织构分析。研究结果表；冷拉Ｃｕ－Ｚｎ－Ａｌ合金线材的主要变形织构对于α相［１１１］＋［１００］丝织构，对于β相［１１０］丝织构，马氏体相强的丝织构可以根据马氏体的取向变和奥氏体β’相的［１１０］丝织构，利用马氏体晶体学唯象理论进行解释。The texture of cold drawn wire of Cu-Zn-Al(Mn) shape memory alloy has been studied by using ODF technique. The relatively fine-grained Cu-Zn-Al(Mn)shape memory alloys were obtained by 95% cold drawing in the(α+β)region followed by appropriate heat treatments.The results showed that the deformation texture in the cold drawn wire consists of a strong [111]+[100]double fibre texture in the α-phase and a [110] fibre in the β-phase.The strong fibre texture in the martensitic phase can be understood in terms of the [110]fibre of the β-phase and oriented transformation to martensite applying the crystallographic orientation relationship between both phases.

关 键 词：形状记忆合金 织构 相变 唯象理论 冷拉拔 

分 类 号：TG139.6[一般工业技术—材料科学与工程] TG356.11[金属学及工艺—合金]