Successive phase transformation in ferromagnetic shape memory alloy CO37Ni34Al29 melt-spun ribbons

被引：0
|
作者：
Meng Fan-Bin [1 ]
Guo Hong-Jun [2 ]
Liu Guo-Dong [1 ]
Liu He-Yan [1 ]
Dai Xue-Fang [1 ]
Luo Hong-Zhi [1 ]
Li Yang-Xian [1 ]
Chen Jing-Lan [3 ]
Wu Guang-Heng [3 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China
[2] Handan Coll, Inst Informat Engn, Handan 056005, Peoples R China
[3] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China
来源：
CHINESE PHYSICS B | 2009年 / 18卷 / 07期
基金：
中国国家自然科学基金;
关键词：
ferromagnetic shape memory alloys; martensitic transformation; structure; ORDER;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The martensitic transformation in CO37Ni34Al29 ribbon is characterized in detail by means of in-situ thermostatic x-ray diffraction and magnetic measurements. The results show a structural transition from the body-centred cubic to martensite with a tetragonal structure during cooling. Comparison between the results of the diffraction intensity with the magnetic susceptibility measurements indicates that the martensitic transformation takes place in several different steps during cooling from 273 to 163 K. During heating from 313 to 873 K, the peak width becomes very wide and the intensity turns very low. The gamma-phase (face-centred cubic structure) emerges and increases gradually with temperature increasing from 873 to 1073 K.
引用
收藏
页码：3031 / 3034
页数：4
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