A study of martensitic transformation in Au-51.5at%Cd alloy

被引：2

作者：

Inami, M ^{[1
]}

Ishii, T ^{[1
]}

Ren, X ^{[1
]}

Otsuka, K ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

来源：

SHAPE MEMORY MATERIALS | 2000年 / 327-3卷

关键词：

martensitic transformation; shape memory alloy; Au-Cd alloy; electron diffraction; point defect;

D O I：

10.4028/www.scientific.net/MSF.327-328.397

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Despite the fact that there are many investigations on martensitic transformations on Au-rich side of Au-Cd alloys, little is known on the transformation behavior of Cd-rich alloys, and the martensite structure is also unclear In the present study we used differential scanning calorimetry (DSC), electrical resistivity and electron microscopy to study the martensitic transformation in Au-51.5at%Cd alloy, We found that the martensitic transformation of Au-51.5at%Cd alloy has a very large hysteresis (110K) compared with that of Au-50.0at%Cd alloy (a few Kelvin). Surprisingly, electron diffraction showed that the structure of Au-51.5at%Cd has the same zeta(2)' martensite structure as Au-50.0at%Cd. The large difference in hysteresis between Au-51.5at%Cd and Au50.0at%Cd was explained in terms of the remarkable difference in point defect concentration.

引用

页码：397 / 400

页数：4