Mechanical response of NiFeGa alloys containing second-phase particles

R. F. Hamilton, H. Sehitoglu, C. Efstathiou, H. J. Maier

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Tensile and compressive strain-temperature and stress-strain responses have been used for the first time to investigate the effects of second-phase particles on the deformation of NiFeGa shape memory alloys. Particles are conducive to the dissipation of stored energy; stress and thermal hysteresis increase three-fold in aged alloys. Although dissipation is severe, recoverable strain levels are as large as +12% and -6%, which match strains for the unaged alloys. These results demonstrate that second-phase particles can be used to tailor the hysteresis while maintaining large transformation strains.

Original languageEnglish (US)
Pages (from-to)497-499
Number of pages3
JournalScripta Materialia
Volume57
Issue number6
DOIs
StatePublished - Sep 1 2007

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Mechanical response of NiFeGa alloys containing second-phase particles'. Together they form a unique fingerprint.

  • Cite this