Thermoelastic intermartensitic transformation and its internal stress dependency in Ni52Mn24Ga24 single crystals

W. H. Wang; Z. H. Liu; J. Zhang; J. L. Chen; G. H. Wu; W. S. Zhan; T. S. Chin; G. H. Wen; X. X. Zhang

doi:10.1103/PhysRevB.66.052411

Thermoelastic intermartensitic transformation and its internal stress dependency in Ni₅₂Mn₂₄Ga₂₄ single crystals

W. H. Wang, Z. H. Liu, J. Zhang, J. L. Chen, G. H. Wu, W. S. Zhan, T. S. Chin, G. H. Wen, X. X. Zhang

Material Science and Engineering

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Abstract

We have found a perfect thermoelastic intermartensitic transformation between the seven-layer modulation (7M) and the five-layer modulation (5M) martensites in an unstressed Ni₅₂Mn₂₄Ga₂₄ single crystal. In particular, we found that the intermartensitic transformation is very sensitive to the internal stress built up during the grinding process. Based on our calculation, an average internal stress of 13.8±1.08 MPa stored in the distorted lattice will force the parent phase to take a totally different martensitic transformation path during cooling and results in the entire suppression of the intermartensitic transformation. These results can be interpreted in terms of the formation of a 5M martensite which is facilitated by the elastic deformation.

Original language	English (US)
Article number	052411
Pages (from-to)	524111-524114
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.66.052411
State	Published - Aug 1 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Wang, W. H., Liu, Z. H., Zhang, J., Chen, J. L., Wu, G. H., Zhan, W. S., Chin, T. S., Wen, G. H., & Zhang, X. X. (2002). Thermoelastic intermartensitic transformation and its internal stress dependency in Ni₅₂Mn₂₄Ga₂₄ single crystals. Physical Review B - Condensed Matter and Materials Physics, 66(5), 524111-524114. Article 052411. https://doi.org/10.1103/PhysRevB.66.052411

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title = "Thermoelastic intermartensitic transformation and its internal stress dependency in Ni52Mn24Ga24 single crystals",

abstract = "We have found a perfect thermoelastic intermartensitic transformation between the seven-layer modulation (7M) and the five-layer modulation (5M) martensites in an unstressed Ni52Mn24Ga24 single crystal. In particular, we found that the intermartensitic transformation is very sensitive to the internal stress built up during the grinding process. Based on our calculation, an average internal stress of 13.8±1.08 MPa stored in the distorted lattice will force the parent phase to take a totally different martensitic transformation path during cooling and results in the entire suppression of the intermartensitic transformation. These results can be interpreted in terms of the formation of a 5M martensite which is facilitated by the elastic deformation.",

author = "Wang, {W. H.} and Liu, {Z. H.} and J. Zhang and Chen, {J. L.} and Wu, {G. H.} and Zhan, {W. S.} and Chin, {T. S.} and Wen, {G. H.} and Zhang, {X. X.}",

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doi = "10.1103/PhysRevB.66.052411",

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T1 - Thermoelastic intermartensitic transformation and its internal stress dependency in Ni52Mn24Ga24 single crystals

AU - Wang, W. H.

AU - Liu, Z. H.

AU - Zhang, J.

AU - Chen, J. L.

AU - Wu, G. H.

AU - Zhan, W. S.

AU - Chin, T. S.

AU - Wen, G. H.

AU - Zhang, X. X.

PY - 2002/8/1

Y1 - 2002/8/1

N2 - We have found a perfect thermoelastic intermartensitic transformation between the seven-layer modulation (7M) and the five-layer modulation (5M) martensites in an unstressed Ni52Mn24Ga24 single crystal. In particular, we found that the intermartensitic transformation is very sensitive to the internal stress built up during the grinding process. Based on our calculation, an average internal stress of 13.8±1.08 MPa stored in the distorted lattice will force the parent phase to take a totally different martensitic transformation path during cooling and results in the entire suppression of the intermartensitic transformation. These results can be interpreted in terms of the formation of a 5M martensite which is facilitated by the elastic deformation.

AB - We have found a perfect thermoelastic intermartensitic transformation between the seven-layer modulation (7M) and the five-layer modulation (5M) martensites in an unstressed Ni52Mn24Ga24 single crystal. In particular, we found that the intermartensitic transformation is very sensitive to the internal stress built up during the grinding process. Based on our calculation, an average internal stress of 13.8±1.08 MPa stored in the distorted lattice will force the parent phase to take a totally different martensitic transformation path during cooling and results in the entire suppression of the intermartensitic transformation. These results can be interpreted in terms of the formation of a 5M martensite which is facilitated by the elastic deformation.

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IS - 5

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Thermoelastic intermartensitic transformation and its internal stress dependency in Ni₅₂Mn₂₄Ga₂₄ single crystals

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