The ultrahigh mechanical energy-absorption capability evidenced in a high-strength NbTi/NiTi nanocomposite

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

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Author(s)

  • S. J. Hao
  • L. S. Cui
  • Y. D. Wang
  • D. Q. Jiang
  • C. Yu
  • J. Jiang
  • D. E. Brown

Detail(s)

Original languageEnglish
Article number024102
Journal / PublicationApplied Physics Letters
Volume99
Issue number2
Publication statusPublished - 11 Jul 2011
Externally publishedYes

Abstract

A nanocomposite composed of NbTi nanowires uniformly embedded in NiTi matrices was fabricated, which exhibits an ultrahigh mechanical-damping capability. The absorption energy measured under an applied 8 strain is up to 54 MJ/m3, which is over three times higher than that (∼16 MJ/m 3) found in the well-known Ni-Ti alloys. In-situ synchrotron x-ray diffraction reveals that a redistribution of stress between the nanowires and matrices was evidenced from an abrupt change in residual lattice strains. The ultrahigh mechanical-damping property is attributed to a combination of the strong interaction of nanowires and matrices and the plastic deformation occurring in NbTi nanowires during deformation causing large energy dissipation. © 2011 American Institute of Physics.

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Citation Format(s)

The ultrahigh mechanical energy-absorption capability evidenced in a high-strength NbTi/NiTi nanocomposite. / Hao, S. J.; Cui, L. S.; Wang, Y. D.; Jiang, D. Q.; Yu, C.; Jiang, J.; Brown, D. E.; Ren, Y.

In: Applied Physics Letters, Vol. 99, No. 2, 024102, 11.07.2011.

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