In situ X-ray diffraction study of deformation behavior in a Fe/NiTi composite

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
  • Yang Shao
  • Jiang Jiang
  • Daqiang Jiang
  • Shan Wang
  • Minshu Du
  • Yandong Wang
  • Dennis E. Brown

Detail(s)

Original languageEnglish
Article number221904
Journal / PublicationApplied Physics Letters
Volume101
Issue number22
Publication statusPublished - 26 Nov 2012
Externally publishedYes

Abstract

A Fe/NiTi composite wire fabricated by simple mechanical processing exhibits a singular deformation feature of strain recovery ratio increase with increasing tensile strain, which is diametrically opposite to that of conventional metal materials. Furthermore, the composite possesses a recoverable strain of over 7 and a higher mechanical damping capability than that of the well-known high damping NiTi shape memory alloy. In-situ synchrotron X-ray diffraction reveals that these extraordinary features originate from the strong interaction between the soft Fe core and the superelastic NiTi tube during tensile cycling. This study offers in-depth understanding of the deformation behavior of the composites composed of soft metal and superelastic shape memory alloy. © 2012 American Institute of Physics.

Bibliographic Note

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Citation Format(s)

In situ X-ray diffraction study of deformation behavior in a Fe/NiTi composite. / Hao, Shijie; Cui, Lishan; Shao, Yang; Jiang, Jiang; Jiang, Daqiang; Wang, Shan; Du, Minshu; Wang, Yandong; Brown, Dennis E.; Ren, Yang.

In: Applied Physics Letters, Vol. 101, No. 22, 221904, 26.11.2012.

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