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Stress–strain behaviors of 〈110〉-oriented Tb0.3Dy0.7Fe1.95 after magnetic annealing

Published online by Cambridge University Press:  31 January 2011

Changsheng Zhang ,
Tianyu Ma  and
Mi Yan
Mi Yan*
Affiliation:
Department of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
*
a)Address all correspondence to this author. e-mail: mse_yanmi@zju.edu.cn
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Abstract

Compressive stress–strain behaviors in a 〈110〉-oriented crystal Tb0.3Dy0.7Fe1.95 after magnetic annealing have been investigated under a series of quasi-static magnetic fields, attempting to add more insight into the corresponding domain-switching process. The magnetically annealed crystal outputs larger final strains than the untreated one, although it exhibits similar stress–strain behaviors. An obvious improvement also occurs in the initial Young's modulus E0 after magnetic annealing. The corresponding domain switching processes under compressive stress have been discussed. Non-180° domain processes are favored because of the specific initial domain states, which can be reflected by the shortening of the flat stage in magnetostriction–magnetic induction (λ–B) curve and the increase of the critical field where maximum forced magnetostriction constant d33 locates.

Keywords

FerromagneticStress/strain relationshipAnnealing
Type
Articles
Information
Journal of Materials Research , Volume 25 , Issue 7 , July 2010 , pp. 1371 - 1374
Copyright
Copyright © Materials Research Society 2010

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