Direct evidence of detwinning in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys during deformation

Z. H. Nie; R. Lin Peng; S. Johansson; E. C. Oliver; Y. Ren; Y. D. Wang; Y. D. Liu; J. N. Deng; L. Zuo; D. E. Brown

doi:10.1063/1.3020534

Direct evidence of detwinning in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys during deformation

Z. H. Nie, R. Lin Peng, S. Johansson, E. C. Oliver, Y. Ren, Y. D. Wang, Y. D. Liu, J. N. Deng, L. Zuo, D. E. Brown

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

12 Citations (Scopus)

Abstract

In situ time-of-flight neutron diffraction and high-energy x-ray diffraction techniques were used to reveal the preferred reselection of martensite variants through a detwinning process in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys under uniaxial compressive stress. The variant reorientation via detwinning during loading can be explained by considering the influence of external stress on the grain/variant orientation-dependent distortion energy. These direct observations of detwinning provide a good understanding of the deformation mechanisms in shape memory alloys. © 2008 American Institute of Physics.

Original language	English
Article number	103519
Journal	Journal of Applied Physics
Volume	104
Issue number	10
DOIs	https://doi.org/10.1063/1.3020534
Publication status	Published - 2008
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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title = "Direct evidence of detwinning in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys during deformation",

abstract = "In situ time-of-flight neutron diffraction and high-energy x-ray diffraction techniques were used to reveal the preferred reselection of martensite variants through a detwinning process in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys under uniaxial compressive stress. The variant reorientation via detwinning during loading can be explained by considering the influence of external stress on the grain/variant orientation-dependent distortion energy. These direct observations of detwinning provide a good understanding of the deformation mechanisms in shape memory alloys. {\textcopyright} 2008 American Institute of Physics.",

author = "Nie, {Z. H.} and Peng, {R. Lin} and S. Johansson and Oliver, {E. C.} and Y. Ren and Wang, {Y. D.} and Liu, {Y. D.} and Deng, {J. N.} and L. Zuo and Brown, {D. E.}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

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doi = "10.1063/1.3020534",

language = "English",

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journal = "Journal of Applied Physics",

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TY - JOUR

T1 - Direct evidence of detwinning in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys during deformation

AU - Nie, Z. H.

AU - Peng, R. Lin

AU - Johansson, S.

AU - Oliver, E. C.

AU - Ren, Y.

AU - Wang, Y. D.

AU - Liu, Y. D.

AU - Deng, J. N.

AU - Zuo, L.

AU - Brown, D. E.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2008

Y1 - 2008

N2 - In situ time-of-flight neutron diffraction and high-energy x-ray diffraction techniques were used to reveal the preferred reselection of martensite variants through a detwinning process in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys under uniaxial compressive stress. The variant reorientation via detwinning during loading can be explained by considering the influence of external stress on the grain/variant orientation-dependent distortion energy. These direct observations of detwinning provide a good understanding of the deformation mechanisms in shape memory alloys. © 2008 American Institute of Physics.

AB - In situ time-of-flight neutron diffraction and high-energy x-ray diffraction techniques were used to reveal the preferred reselection of martensite variants through a detwinning process in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys under uniaxial compressive stress. The variant reorientation via detwinning during loading can be explained by considering the influence of external stress on the grain/variant orientation-dependent distortion energy. These direct observations of detwinning provide a good understanding of the deformation mechanisms in shape memory alloys. © 2008 American Institute of Physics.

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-57049151800&origin=recordpage

U2 - 10.1063/1.3020534

DO - 10.1063/1.3020534

M3 - RGC 21 - Publication in refereed journal

SN - 0021-8979

VL - 104

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

M1 - 103519

ER -

Direct evidence of detwinning in polycrystalline Ni-Mn-Ga ferromagnetic shape memory alloys during deformation

Abstract

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