Effect of external stress and bias magnetic field on transformation strain of Heusler alloy Ni-Mn-Ga

Zhi Yong Gao; Wei Cai; Lian Cheng Zhao; Guang Heng Wu; Jing Lan Chen; Wen Shan Zhan

Effect of external stress and bias magnetic field on transformation strain of Heusler alloy Ni-Mn-Ga

Zhi Yong Gao^*
, Wei Cai
, Lian Cheng Zhao
, Guang Heng Wu
, Jing Lan Chen
, Wen Shan Zhan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The influence of external field(magnetic field and stress field) on the transformation strain of Ni_52.9Mn_24.4Ga_22.7 single crystal were investigated and the mechanism was also discussed. When thermally martensitic transformation occurs, about 0.25% transformation strain is obtained which may be obviously enhanced to about 0.8% by a 6000 Oe magnetic bias field. However, the strain decreases by the external compress stress loaded along the strain-measured direction. When the external compress stress and bias magnetic field are simultaneously applied, the transformation strain decreases with increasing the magnetic field, which is related to the rearrangement of the martensite variants influenced by the external field.

Original language	English
Pages (from-to)	42-45
Number of pages	4
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	13
Issue number	1
State	Published - Feb 2003
Externally published	Yes

Keywords

Bias magnetic field
External compress stress
NiMnGa single crystal
Transformation strain

Cite this

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title = "Effect of external stress and bias magnetic field on transformation strain of Heusler alloy Ni-Mn-Ga",

abstract = "The influence of external field(magnetic field and stress field) on the transformation strain of Ni52.9Mn24.4Ga22.7 single crystal were investigated and the mechanism was also discussed. When thermally martensitic transformation occurs, about 0.25\% transformation strain is obtained which may be obviously enhanced to about 0.8\% by a 6000 Oe magnetic bias field. However, the strain decreases by the external compress stress loaded along the strain-measured direction. When the external compress stress and bias magnetic field are simultaneously applied, the transformation strain decreases with increasing the magnetic field, which is related to the rearrangement of the martensite variants influenced by the external field.",

keywords = "Bias magnetic field, External compress stress, NiMnGa single crystal, Transformation strain",

author = "Gao, \{Zhi Yong\} and Wei Cai and Zhao, \{Lian Cheng\} and Wu, \{Guang Heng\} and Chen, \{Jing Lan\} and Zhan, \{Wen Shan\}",

year = "2003",

month = feb,

language = "英语",

volume = "13",

pages = "42--45",

journal = "Transactions of Nonferrous Metals Society of China (English Edition)",

issn = "1003-6326",

publisher = "Nonferrous Metals Society of China",

number = "1",

}

TY - JOUR

T1 - Effect of external stress and bias magnetic field on transformation strain of Heusler alloy Ni-Mn-Ga

AU - Gao, Zhi Yong

AU - Cai, Wei

AU - Zhao, Lian Cheng

AU - Wu, Guang Heng

AU - Chen, Jing Lan

AU - Zhan, Wen Shan

PY - 2003/2

Y1 - 2003/2

N2 - The influence of external field(magnetic field and stress field) on the transformation strain of Ni52.9Mn24.4Ga22.7 single crystal were investigated and the mechanism was also discussed. When thermally martensitic transformation occurs, about 0.25% transformation strain is obtained which may be obviously enhanced to about 0.8% by a 6000 Oe magnetic bias field. However, the strain decreases by the external compress stress loaded along the strain-measured direction. When the external compress stress and bias magnetic field are simultaneously applied, the transformation strain decreases with increasing the magnetic field, which is related to the rearrangement of the martensite variants influenced by the external field.

AB - The influence of external field(magnetic field and stress field) on the transformation strain of Ni52.9Mn24.4Ga22.7 single crystal were investigated and the mechanism was also discussed. When thermally martensitic transformation occurs, about 0.25% transformation strain is obtained which may be obviously enhanced to about 0.8% by a 6000 Oe magnetic bias field. However, the strain decreases by the external compress stress loaded along the strain-measured direction. When the external compress stress and bias magnetic field are simultaneously applied, the transformation strain decreases with increasing the magnetic field, which is related to the rearrangement of the martensite variants influenced by the external field.

KW - Bias magnetic field

KW - External compress stress

KW - NiMnGa single crystal

KW - Transformation strain

UR - https://www.scopus.com/pages/publications/0038729206

M3 - 文章

AN - SCOPUS:0038729206

SN - 1003-6326

VL - 13

SP - 42

EP - 45

JO - Transactions of Nonferrous Metals Society of China (English Edition)

JF - Transactions of Nonferrous Metals Society of China (English Edition)

IS - 1

ER -

Effect of external stress and bias magnetic field on transformation strain of Heusler alloy Ni-Mn-Ga

Abstract

Keywords

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