Strain characteristics and superelastic response of Ni53.2Mn22.6Ga24.2 single crystals

Cui YT; Wu L; You SQZhang JWu ZXKong CYChen JLWu GH

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Strain characteristics and superelastic response of Ni53.2Mn22.6Ga24.2 single crystals

机译：Strain characteristics and superelastic response of Ni53.2Mn22.6Ga24.2 single crystals

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The intermartensitic transformation, in a two-step complete thermoelastic martensitic transformation in Ni53.2Mn22.6Ga24.2 single crystals, provides a much larger strain than that of the martensitic transformation. With a biasing magnetic field, the intermartensitic transformation strain is inhibited and the martensitic transformation strain is enhanced. Compressive stress-strain characteristics can be affected greatly by a static magnetic field. At low deformation temperature, the irreversible transformation strain induced by the stress becomes reversible, when a static magnetic field is applied. Further, the magnitude of the stress necessary for rearrangement of martensitic variants is dependent on the direction of the biasing magnetic field. Moreover, a well-defined character of the twin-boundary motion, similar to the soliton motion, has been observed upon loading or unloading.

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来源
《Solid State Communications》 |2009年第38期|1539-1542|共4页
作者
Cui YT; Wu L; You SQZhang JWu ZXKong CYChen JLWu GH;
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作者单位

Chongqing Normal Univ, Coll Phys & Informat Technol, Chongqing 400047, Peoples R China.;

Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China.;

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正文语种英语
中图分类固体物理学;
关键词
Martensitic transformation; Strain; Superelastic response; Shape memory; effect;

Strain characteristics and superelastic response of Ni53.2Mn22.6Ga24.2 single crystals

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