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金属学报  1989, Vol. 25 Issue (3): 17-22    
  论文 本期目录 | 过刊浏览 |
母相晶粒度和有序度对含硼Cu-Zn-Al合金形状记忆效应的影响
吴建新;江伯鸿;徐祖耀
上海交通大学;上海交通大学;上海交通大学
INFLUENCE OF GRAIN SIZE AND ORDERING DEGREE OF PARENT PHASE ON SHAPE MEMORY EFFECT IN A CuZnAl ALLOY CONTAINING BORON
WU Jianxin;JIANG Bohong;Hsu T. Y. XU Zuyao Shanghai Jiao Tong University
引用本文:

吴建新;江伯鸿;徐祖耀. 母相晶粒度和有序度对含硼Cu-Zn-Al合金形状记忆效应的影响[J]. 金属学报, 1989, 25(3): 17-22.
, , . INFLUENCE OF GRAIN SIZE AND ORDERING DEGREE OF PARENT PHASE ON SHAPE MEMORY EFFECT IN A CuZnAl ALLOY CONTAINING BORON[J]. Acta Metall Sin, 1989, 25(3): 17-22.

全文: PDF(457 KB)  
摘要: 本文研究了母相晶粒度和有序度对Cu-25.62Zn-3.97Al-0.0018B(wt-%)记忆合金形状回复的影响。试样的回复量通过圆弧弯曲法测定。建立了回复率与有序度、晶粒尺寸、晶界影响区宽度、试样变形时的应力和临界切应力之间的数学关系。形状记忆效应随晶粒尺寸变化出现极大值,随有序参数增大而线性上升,与试验结果相符。
关键词 Cu-Zn-Al形状记忆合金有序度晶粒度    
Abstract:Influence of the grain size and ordering degree of the parent phase onthe shape memory recovery in a Cu-25.62 Zn-3.97 Al-0.0018B (wt-%) memory alloyis investigated. A mathematical relationship is set up between the recovery ratio andordering degree, probability of atoms at their ordered sites, grain size, the widthof the grain boundary affected regions, the stress during deformation, as well as thecritical shear stress. Shape memory effect reaches a maximum with varying grainsize and increases linearly with increasing ordering parameter, that agrees well withexperimental results.
Key wordsCuZnAl alloy    ordering degree    grain size
收稿日期: 1989-03-18     
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