THERMAL AND MAGNETIC-PROPERTIES OF STRESS-INDUCED MARTENSITES IN NI-MN-GA ALLOYS

被引:34
作者
CHERNENKO, VA [1 ]
AMENGUAL, A [1 ]
CESARI, E [1 ]
KOKORIN, VV [1 ]
ZASIMCHUK, IK [1 ]
机构
[1] UNIV ILLES BALEARS,DEPT FIS,E-07071 PALMA DE MALLORCA,SPAIN
来源
JOURNAL DE PHYSIQUE IV | 1995年 / 5卷 / C2期
关键词
D O I
10.1051/jp4:1995214
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The stress-induced transformation of single crystals of Ni-Mn-Ga ferromagnetic Heusler ordered alloys to new martensitic structures has been investigated. The intermartensitic transformations, whenever they occur, were registered during heating by calorimetry, dilatometry and magnetic susceptibility measurement, showing up a step-like strain recovery, small endothermal effects, and an abrupt change of the low-field magnetic susceptibility. During intermartensitic transformations, between modulated and unmodulated lattices, as well as during the final transformation to the parent austenitic phase, noticeable anomalous changes in the specific magnetization were observed.
引用
收藏
页码:95 / 98
页数:4
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