Mechanical Properties of (Pt, Ir)Ti

Y. Yamabe-Mitarai, T. Hara, S. Miura, H. Hosoda

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)

Abstract

We have suggested B2-(Pt, Ir)Ti as high temperature shape memory alloys. The phase transformation of (Pt, Ir)-50at% Ti from B2 to B19(2H) or 4H(4O) structures was investigated in our previous study. The microstructure suggested martensitic transformation. In this study, thermal expansion measurement and cyclic compression test were performed for (Pt, Ir)Ti to investigate if the shape memory effect appears. High temperature strength was also investigated because phase transformation temperature of the (Pt, Ir)Ti is above 1273 K and high strength is necessary as high temperature shape memory alloys in order to suppress dislocation motion and stabilize martenstic transformation. The potential of (Pt, Ir)Ti as high temperature shape memory alloys will be also discussed.

Original languageEnglish
Pages (from-to)1987-1990
Number of pages4
JournalMaterials Science Forum
Volume475-479
Issue numberIII
DOIs
Publication statusPublished - 2005
Externally publishedYes
EventPRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China
Duration: 2004 Nov 22004 Nov 5

Keywords

  • B19
  • B2
  • Martensitic transformation
  • PtTi

ASJC Scopus subject areas

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

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