Effect of grinding stress on the phase transformation of Ni2+xMn1-xGa powder

被引：5
|
作者：
Wang, Z [1 ]
Matsumoto, M
Abe, T
Oikawa, K
Qiu, JH
Takagi, T
Tani, JJ
机构：
[1] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, Inst Adv Mat Proc, Sendai, Miyagi 9808577, Japan
[3] Tohoku Natl Ind Res Inst, Sendai, Miyagi 9838551, Japan
来源：
MATERIALS TRANSACTIONS JIM | 1999年 / 40卷 / 04期
关键词：
Heusler alloy; Ni2MnGa; shape memory alloy; phase transformation; powder metallurgy;
D O I：
10.2320/matertrans1989.40.290
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ni2+xMn1-xGa powder of stoichiometric and non-stoichiometric compositions which was ground from are melted ingots was investigated for the martensitic phase transformation. The mechanical grinding process resulted in lattice strain and decreased grain size, leading to the variation of X-ray diffraction profiles and the suppression of the martensitic transformation. But such stress-induced effect was observed to relieve from heat treatment.
引用
收藏
页码：290 / 293
页数：4
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