Effect of severe plastic deformation on the structure and properties of the Ni2.16Mn0.84Ga alloy

被引：17
|
作者：
Kourov, N. I. [1 ]
Pushin, V. G. [1 ]
Korolev, A. V. [1 ]
Kazantsev, V. A. [1 ]
Marchenkova, E. B. [1 ]
Uksusnikov, A. N. [1 ]
机构：
[1] Russian Acad Sci, Ural Div, Inst Met Phys, Ekaterinburg 620041, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2007年 / 103卷 / 03期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S0031918X07030076
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of severe plastic deformation by torsion (high-pressure torsion or HPT) on the crystalline structure and behavior of electrical resistivity, thermoelectric power, thermal expansion, and magnetic properties of the rapidly quenched Ni2.16Mn0.84Ga alloy has been investigated. It has been shown that after HPT treatment of the rapidly quenched submicrocrystalline alloy, a mixture of amorphous and nanocrystalline phases is formed. Electrical properties of the alloy have been explained in terms of the Mott two-band model. Specific features of the magnetic properties of the alloy are related to the coexistence of ferro-and antiferromagnetic interactions in an atomically disordered state of the alloy.
引用
收藏
页码：270 / 277
页数：8
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