Effect of aging on martensitic transformation in γ-MnCu alloy

被引：15
作者：
Tsuchiya, K [1 ]
Sato, H
Edo, S
Marukawa, K
Umemoto, M
机构：
[1] Toyohashi Univ Technol, Fac Engn, Dept Prod Syst Engn, Toyohashi, Aichi 4418580, Japan
[2] Hokkaido Univ, Fac Engn, Dept Appl Phys, Sapporo, Hokkaido 0608628, Japan
[3] Hokkaido Polytech Coll, Dept Mech Syst Technol, Otaru, Hokkaido 0470261, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 285卷 / 1-2期
关键词：
martensitic transformation; spinodal decomposition; isothermal aging; antiferromagnetic transition; electrical resistivity;
D O I：
10.1016/S0921-5093(00)00691-2
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Effect of isothermal aging was investigated on fcc-fct martensitic transformation behavior of Mn-14at.%Cu alloy. It was revealed that by aging at temperatures ranging from 630 to 690 K, the transformation temperature increases markedly and the residual resistivity decreases in parallel. DSC peak profiles have also been modified significantly by aging. A good linear correlation has been found between the changes in the information temperature and those in the resistivity. It is also shown that the observed transformation temperature increase, resistivity decrease and their linear correlation can be well explained by the rule of mixture assuming the heterogeneous microstructure, which forms as a result of spinodal decomposition as reported in previous studies. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：353 / 356
页数：4
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