Nanostructured Nb reinforced NiTi shape memory alloy composite with high strength and narrow hysteresis

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Shijie Hao
  • Lishan Cui
  • Daqiang Jiang
  • Cun Yu
  • Jiang Jiang
  • Xiaobin Shi
  • Zhenyang Liu
  • Shan Wang
  • Yandong Wang
  • Dennis E. Brown

Detail(s)

Original languageEnglish
Article number231905
Journal / PublicationApplied Physics Letters
Volume102
Issue number23
Publication statusPublished - 10 Jun 2013
Externally publishedYes

Abstract

An in-situ nanostructured Nb reinforced NiTi shape-memory alloy composite was fabricated by mechanical reduction of an as-cast Nb-NiTi eutectic alloy. The composite exhibits large elastic strain, high strength, narrow hysteresis, and high mechanical energy storage density and efficiency during tensile cycling. In situ synchrotron high-energy X-ray diffraction revealed that these superior properties were attributed to the strong coupling between nanostructured Nb and NiTi matrix during deformation. Furthermore, this study offers a good understanding of the deformation behavior of the nanoscale reinforcement embedded in the metal matrix deformed by stress-induced phase transformation. © 2013 AIP Publishing LLC.

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Citation Format(s)

Nanostructured Nb reinforced NiTi shape memory alloy composite with high strength and narrow hysteresis. / Hao, Shijie; Cui, Lishan; Jiang, Daqiang; Yu, Cun; Jiang, Jiang; Shi, Xiaobin; Liu, Zhenyang; Wang, Shan; Wang, Yandong; Brown, Dennis E.; Ren, Yang.

In: Applied Physics Letters, Vol. 102, No. 23, 231905, 10.06.2013.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review