Superelastic memory effect in in-situ NbTi-nanowire-NiTi nanocomposite

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
  • Yandong Wang
  • Xiaobing Shi
  • Jiang Jiang
  • Dennis E. Brown

Detail(s)

Original languageEnglish
Article number173115
Journal / PublicationApplied Physics Letters
Volume101
Issue number17
Publication statusPublished - 22 Oct 2012
Externally publishedYes

Abstract

An in-situ NbTi-nanowire-NiTi composite wire fabricated by conventional metallurgical processing has the remarkable ability of remembering its previous stress/strain states where it was unloaded during multiple-step cyclic loading. In situ synchrotron x-ray diffraction studies revealed that an interactive stress between NbTi nanowires and NiTi matrix was introduced and retained after a load/unload cycle due to their strain mismatch. The different levels of interactive stress in different regions of the specimen resulted in a superelastic memory effect. Furthermore, the final loading curve could remember all previous loading histories, which may be of use in practical applications. © 2012 American Institute of Physics.

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Citation Format(s)

Superelastic memory effect in in-situ NbTi-nanowire-NiTi nanocomposite. / Hao, Shijie; Cui, Lishan; Jiang, Daqiang; Wang, Yandong; Shi, Xiaobing; Jiang, Jiang; Brown, Dennis E.; Ren, Yang.

In: Applied Physics Letters, Vol. 101, No. 17, 173115, 22.10.2012.

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