Phase stability and mechanical properties of Ti-Cr based alloys with low Young's modulus

Yonosuke Murayama, Shuichi Sasaki, Hisamichi Kimura, Akihiko Chiba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

This work investigates the mechanical properties of Ti-Cr system alloys and focuses on the microstructure, the Young's modulus, the deformation mechanism and the deformation behaviour observed in various alloy compositions. The addition of Al to the Ti-Cr system alloys greatly decreases the Young's modulus. Addition of Al, Sn and Zr to various Ti-Cr alloys suppresses the athermal ω phase that forms during quenching from β field. A Ti-Cr system alloy with low Young's modulus was obtained in suitable compositional combination of Cr, Zr and Sn or Al. The alloys with the composition where the quenched microstructure transits from martensite to meta-stable β phase show low Young's modulus. In addition, the alloys show two-step yielding due to stress-induced transformation.

Original languageEnglish
Title of host publicationPRICM7
PublisherTrans Tech Publications Ltd
Pages2114-2117
Number of pages4
ISBN (Print)0878492550, 9780878492558
DOIs
Publication statusPublished - 2010
Event7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7 - Cairns, QLD, Australia
Duration: 2010 Aug 22010 Aug 6

Publication series

NameMaterials Science Forum
Volume654-656
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
CountryAustralia
CityCairns, QLD
Period10/8/210/8/6

Keywords

  • Martensite
  • Mechanical properties
  • Meta-stable β titanium
  • Young's modulus
  • ω phase

ASJC Scopus subject areas

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

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