Structure and mechanical properties of Ti-Cu-Ni cast alloy with high-strength

Kenji Amiya, Hideki Soejima, Nobuyuki Nishiyama, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

Abstract

It was found that a cast Ti-Cu-Ni-Mo-Fe multicomponent alloy exhibited high strength and large elongation. The yield strength (σ0.2) and plastic elongation of the Ti52Cu23Ni11Fe 7Mo7 cast alloy with a diameter of 3 mm are 1250 MPa and 22 %, respectively, under a compressive stress. The main phase of this alloy is a TiNi compound phase with dendrite morphology. The large elongation of the Ti52Cu23Ni11Fe7Mo7 cast alloy is attributed to the combined effect of the ductility of a TiNi phase and the large plastic deformation ability of grain-boundary.

Original languageEnglish
Pages (from-to)539-542
Number of pages4
JournalJournal of Metastable and Nanocrystalline Materials
Volume24-25
DOIs
Publication statusPublished - 2005

Keywords

  • Strength
  • Structure
  • Ti-based
  • TiNi

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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