金属学报  1986, Vol. 22 Issue (2): 37-150

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快速凝固Cu-Zn-Al形状记忆合金

金嘉陵;邵自昌

上海钢铁研究所;上海钢铁研究所

ON THE RAPIDLY SOLIDIFIED Cu-Zn-Al SHAPE MEMORY ALLOY

JIN Jialing; SHAO Zichang (Shanghai Institute of Iron and Steel Research)

金嘉陵;邵自昌. 快速凝固Cu-Zn-Al形状记忆合金[J]. 金属学报, 1986, 22(2): 37-150.
, . ON THE RAPIDLY SOLIDIFIED Cu-Zn-Al SHAPE MEMORY ALLOY[J]. Acta Metall Sin, 1986, 22(2): 37-150.

摘要 参考文献 相关文章 Metrics 全文: PDF(2134 KB)   摘要: 采用快速凝固工艺制取了不同规格的Cu-24.9wt-％Zn-4.5wt-％AJ合金带材、并通过应力-应变曲线、电阻-温度曲线、光学金相、X射线衍射、扫描电镜和透射电镜等方法研究了该合金的形状记忆性能、组织结构特征及热处理的影响。结果表明:合金喷带原始组织是单一的β细晶(晶粒尺寸约20μm);经720℃10min水淬处理后晶粒长大到100μm左右,室温下为(β+M)组织时,可以获得最佳的形状记忆性能,且避免了粗晶脆化;在应变值ε≤8％时能实现完全的记忆回复;加载变形过程中,样品表面形成的马氏体和晶粒状浮雕具有可逆性。 Abstract：The shape memory properties, microstructure and the influence of heat treament on them of Cu-24.9wt-%Zn-4.5wt-%Al alloy ribbon of different sizes prepared by rapid solidification technique have been investigated by means of σ-εand R-T curves, optical metallography, X-ray diffraction, SEM and TEM. The results showed that the alloy ribbon is of a fine-grained β structure, about 20 μn, originally, and grows up to about 100μm after water quenching from 720℃ for 10 rain. For the alloy with a β+M structure at room temperature, its optimum shape memory properties may be obtained and the embrittlement by grain coarsening may be avoided. The complete memory recovery may be realized with the strain no more than 8%. The formation of granular relief and martensite on the specimen surface seems to be reversible during deformation under loading. 收稿日期: 1986-02-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 金嘉陵 邵自昌 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I2/37 1 Perkins, J., Metall. Trans., 13A (1982) , 1367． 2 Wood, J.V.; Shingu, P.H., Metall. Trans., 15A (1984) , 471． 3 孔祥炎;高安娟,中南矿冶学院学报,(1983) ,№2,49． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed