Fatigue response of NiFeGa single crystals

Christos Efstathiou, Huseyin Sehitoglu, Peter Kurath, Stefano Foletti, Piermaria Davoli

Research output: Contribution to journalArticle

Abstract

The tensile fatigue response of single crystal NiFeGa with [0 0 1], [0 1 1] and [1 2 3] orientations was investigated under pseudoelastic conditions. The [0 0 1] orientation displayed a remarkably long fatigue life, exceeding 13,000 cycles, when loaded to a 10% strain range. The [1 2 3] orientation displayed the shortest fatigue life and the [0 1 1] intermediate. Although the fatigue lives drastically varied for all three orientations, the stabilization of the stress-strain curves was similar. The lack of residual strains and the stability of the stress-strain curves indicate excellent fatigue resistance.

Original languageEnglish (US)
Pages (from-to)409-412
Number of pages4
JournalScripta Materialia
Volume57
Issue number5
DOIs
StatePublished - Sep 1 2007

Keywords

  • Cyclic stability
  • Fatigue
  • Fatigue life
  • Pseudoelasticity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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    Efstathiou, C., Sehitoglu, H., Kurath, P., Foletti, S., & Davoli, P. (2007). Fatigue response of NiFeGa single crystals. Scripta Materialia, 57(5), 409-412. https://doi.org/10.1016/j.scriptamat.2007.04.049