Phase transformation of Heusler type Ni2+xMn1-xGa (x = 0 ∼ 0.19)

被引：50

作者：

Matsumoto, M ^{[1
]}

Takagi, T

Tani, J

Kanomata, T

Muramatsu, N

Vasil'ev, AN

机构：

[1] Tohoku Univ, Inst Adv Mat Proc, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi 9808577, Japan

[3] Tohoku Gakuin Univ, Fac Engn, Tagajo, Miyagi 9858537, Japan

[4] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119899, Russia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1999年 / 273卷

关键词：

Ni2MnGa; phase transformation; martensitic transformation;

D O I：

10.1016/S0921-5093(99)00381-0

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Stoichiometric Ni2MnGa has a ferromagnetic and thermo-elastic martensitic transformation. Stoichiometric and non-stoichiometric Ni2+xMn1-xGa (x = 0 similar to 0.19) were made by the are melting method and the martensitic and inverse martenistic transformation temperatures, M-s, M-f, A(s) and A(f), were measured by a differential scanning calorimeter. The phase transformation temperature, T-m, and the Curie temperature, T-c, were determined by the low field magnetic susceptibility vs. temperature curves. The Curie temperatures, T-c, decrease and the transformation temperatures, M-s, M-f, A(s) and T-m(A(s)), increase with an increase of Ni composition. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：326 / 328

页数：3

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