Phase-stress partition and stress-induced martensitic transformation in NbTi/NiTi nanocomposite

S. J. Hao; D. Q. Jiang; L. S. Cui; Y. D. Wang; X. B. Shi; Z. H. Nie; D. E. Brown; Y. Ren

doi:10.1063/1.3629768

Phase-stress partition and stress-induced martensitic transformation in NbTi/NiTi nanocomposite

S. J. Hao, D. Q. Jiang, L. S. Cui, Y. D. Wang, X. B. Shi, Z. H. Nie, D. E. Brown, Y. Ren

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

29 Citations (Scopus)

Abstract

The phase-stress partition and stress-induced martensitic transformation in a NbTi/NiTi nanocomposite were investigated by employing in situ synchrotron x-ray diffraction during tensile cycling. The phase-stress partition behavior in the nanocomposite is significantly different from that previously reported in the metal-matrix composites. Beyond the initial elastic deformation, the stress carried by the NbTi nanowires increased significantly with increasing macroscopic strain, while the stress taken by the NiTi matrix decreased gradually. We also found that the stress-induced martensitic transformation of the NiTi matrix still proceeded even though the matrix carried decreasing stress rather than constant or increasing stress well known in binary NiTi alloys. © 2011 American Institute of Physics.

Original language	English
Article number	084103
Journal	Applied Physics Letters
Volume	99
Issue number	8
DOIs	https://doi.org/10.1063/1.3629768
Publication status	Published - 22 Aug 2011
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 = "Phase-stress partition and stress-induced martensitic transformation in NbTi/NiTi nanocomposite",

abstract = "The phase-stress partition and stress-induced martensitic transformation in a NbTi/NiTi nanocomposite were investigated by employing in situ synchrotron x-ray diffraction during tensile cycling. The phase-stress partition behavior in the nanocomposite is significantly different from that previously reported in the metal-matrix composites. Beyond the initial elastic deformation, the stress carried by the NbTi nanowires increased significantly with increasing macroscopic strain, while the stress taken by the NiTi matrix decreased gradually. We also found that the stress-induced martensitic transformation of the NiTi matrix still proceeded even though the matrix carried decreasing stress rather than constant or increasing stress well known in binary NiTi alloys. {\textcopyright} 2011 American Institute of Physics.",

author = "Hao, {S. J.} and Jiang, {D. Q.} and Cui, {L. S.} and Wang, {Y. D.} and Shi, {X. B.} and Nie, {Z. H.} and Brown, {D. E.} and Y. Ren",

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AU - Hao, S. J.

AU - Jiang, D. Q.

AU - Cui, L. S.

AU - Wang, Y. D.

AU - Shi, X. B.

AU - Nie, Z. H.

AU - Brown, D. E.

AU - Ren, Y.

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 - 2011/8/22

Y1 - 2011/8/22

N2 - The phase-stress partition and stress-induced martensitic transformation in a NbTi/NiTi nanocomposite were investigated by employing in situ synchrotron x-ray diffraction during tensile cycling. The phase-stress partition behavior in the nanocomposite is significantly different from that previously reported in the metal-matrix composites. Beyond the initial elastic deformation, the stress carried by the NbTi nanowires increased significantly with increasing macroscopic strain, while the stress taken by the NiTi matrix decreased gradually. We also found that the stress-induced martensitic transformation of the NiTi matrix still proceeded even though the matrix carried decreasing stress rather than constant or increasing stress well known in binary NiTi alloys. © 2011 American Institute of Physics.

AB - The phase-stress partition and stress-induced martensitic transformation in a NbTi/NiTi nanocomposite were investigated by employing in situ synchrotron x-ray diffraction during tensile cycling. The phase-stress partition behavior in the nanocomposite is significantly different from that previously reported in the metal-matrix composites. Beyond the initial elastic deformation, the stress carried by the NbTi nanowires increased significantly with increasing macroscopic strain, while the stress taken by the NiTi matrix decreased gradually. We also found that the stress-induced martensitic transformation of the NiTi matrix still proceeded even though the matrix carried decreasing stress rather than constant or increasing stress well known in binary NiTi alloys. © 2011 American Institute of Physics.

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DO - 10.1063/1.3629768

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

M1 - 084103

ER -

Phase-stress partition and stress-induced martensitic transformation in NbTi/NiTi nanocomposite

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