TiPt-Co and TiPt-Ru high temperature shape memory alloys

Abdul Wadood, Yoko Yamabe-Mitarai

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Equiatomic TiPt exhibits very high transformation temperatures (~1300. K) from B2 to B19 orthorhombic martensitic phase. However TiPt exhibits negligible (~0-11%) shape memory effect and low strength (~450. MPa) in martensite and very low strength (~20. MPa) in B2 phase region. Then in this study, we compared the high temperature strength and shape memory properties of Ti-50Pt by partial substitution of Platinum (Pt) belonging to group 10 of periodic table with Cobalt (Co) belonging to group 9 and Ruthenium (Ru) belonging to group 8 of periodic table respectively. Partial substitution of Pt with Co and Ru was found effective in improving the high temperature strength and shape memory properties of Ti-50Pt alloy. However partial substitution of Pt with Ru was found more effective than Co due to more effective solid solution strengthening effect. Ti-45Pt-5Co and Ti-45Pt-5Ru alloys have potential for high temperature shape memory materials applications.

Original languageEnglish
Pages (from-to)106-110
Number of pages5
JournalMaterials Science and Engineering A
Volume601
DOIs
Publication statusPublished - 2014 Apr 17
Externally publishedYes

Keywords

  • Crystal structure
  • Martensite
  • Mechanical properties
  • Shape memory effect
  • TiPt-X

ASJC Scopus subject areas

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

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