The suppression and recovery of martensitic transformation in a Ni-Co-Mn-In magnetic shape memory alloy

Z. L. Wang; D. Y. Cong; Z. H. Nie; J. Gao; W. Liu; Y. D. Wang

doi:10.1016/j.jallcom.2011.08.098

The suppression and recovery of martensitic transformation in a Ni-Co-Mn-In magnetic shape memory alloy

Z. L. Wang, D. Y. Cong, Z. H. Nie, J. Gao, W. Liu, Y. D. Wang^*

^*此作品的通讯作者

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

9 引用（Scopus）

摘要

The intrinsic mechanism of the martensitic transformation (MT) suppression observed in Ni-Co-Mn-In alloys fabricated under non-equilibrium conditions still remains mysterious. Here, we used the undercooling technique to obtain a solidified microstructure in non-equilibrium state, subsequently leading to MT suppression even further cooling to 10 K. It was found that primary dendrite-like In-depleted precipitates occurred during solidification under a large undercooling. After a prolonged annealing, the MT interestingly appeared again due to the dissolution of the precipitates and the recovery of equilibrium chemical composition in the matrix.

源语言	英语
页（从-至）	41-44
页数	4
期刊	Journal of Alloys and Compounds
卷	511
期	1
DOI	https://doi.org/10.1016/j.jallcom.2011.08.098
出版状态	已出版 - 15 1月 2012

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title = "The suppression and recovery of martensitic transformation in a Ni-Co-Mn-In magnetic shape memory alloy",

abstract = "The intrinsic mechanism of the martensitic transformation (MT) suppression observed in Ni-Co-Mn-In alloys fabricated under non-equilibrium conditions still remains mysterious. Here, we used the undercooling technique to obtain a solidified microstructure in non-equilibrium state, subsequently leading to MT suppression even further cooling to 10 K. It was found that primary dendrite-like In-depleted precipitates occurred during solidification under a large undercooling. After a prolonged annealing, the MT interestingly appeared again due to the dissolution of the precipitates and the recovery of equilibrium chemical composition in the matrix.",

keywords = "Magnetic shape memory alloys, Martensitic transformation, Non-equilibrium, Undercooling",

author = "Wang, {Z. L.} and Cong, {D. Y.} and Nie, {Z. H.} and J. Gao and W. Liu and Wang, {Y. D.}",

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T1 - The suppression and recovery of martensitic transformation in a Ni-Co-Mn-In magnetic shape memory alloy

AU - Wang, Z. L.

AU - Cong, D. Y.

AU - Nie, Z. H.

AU - Gao, J.

AU - Liu, W.

AU - Wang, Y. D.

PY - 2012/1/15

Y1 - 2012/1/15

N2 - The intrinsic mechanism of the martensitic transformation (MT) suppression observed in Ni-Co-Mn-In alloys fabricated under non-equilibrium conditions still remains mysterious. Here, we used the undercooling technique to obtain a solidified microstructure in non-equilibrium state, subsequently leading to MT suppression even further cooling to 10 K. It was found that primary dendrite-like In-depleted precipitates occurred during solidification under a large undercooling. After a prolonged annealing, the MT interestingly appeared again due to the dissolution of the precipitates and the recovery of equilibrium chemical composition in the matrix.

AB - The intrinsic mechanism of the martensitic transformation (MT) suppression observed in Ni-Co-Mn-In alloys fabricated under non-equilibrium conditions still remains mysterious. Here, we used the undercooling technique to obtain a solidified microstructure in non-equilibrium state, subsequently leading to MT suppression even further cooling to 10 K. It was found that primary dendrite-like In-depleted precipitates occurred during solidification under a large undercooling. After a prolonged annealing, the MT interestingly appeared again due to the dissolution of the precipitates and the recovery of equilibrium chemical composition in the matrix.

KW - Magnetic shape memory alloys

KW - Martensitic transformation

KW - Non-equilibrium

KW - Undercooling

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DO - 10.1016/j.jallcom.2011.08.098

M3 - Article

AN - SCOPUS:80054690851

SN - 0925-8388

VL - 511

SP - 41

EP - 44

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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ER -

The suppression and recovery of martensitic transformation in a Ni-Co-Mn-In magnetic shape memory alloy

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