Mechanical properties of meta-stable Ti-Cr-Sn-Zr alloys

Yonosuke Murayama, Daichi Abe, Akihiko Chiba

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

2 Citations (Scopus)

Abstract

This work examines the effect of grain size on the mechanical properties of meta-stable β Ti-2Cr-6Sn-45Zr alloys with low Young's modulus. Meta-stable β Ti-Cr-Sn-Zr quaternary alloys with low Young's modulus, which compositions are close to microstructural transition from martensitic microstructure to β phase structure in as-quenched condition after solid solution heat treatment, show stress-induced martensitic transformation. A Ti-2Cr-6Sn-45Zr alloy with meta-stable β phase shows two step yielding phenomenon in tensile stress-strain curves, in which first yield stress indicates the onset stress of stress induced martensitic transformation and second yield stress indicates the onset of slip deformation. The grain size of this alloy influenced its mechanical properties, that is, first yield stress decreased and the second yield stress increased as the grain size of the alloy diminished. Young's modulus was not influenced greatly.

Original languageEnglish
Title of host publication8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
PublisherJohn Wiley and Sons Inc.
Pages1537-1542
Number of pages6
Volume2
ISBN (Print)9781632660008
Publication statusPublished - 2013 Jan 1
Event8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 - Waikoloa, HI, United States
Duration: 2013 Aug 42013 Aug 9

Other

Other8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
CountryUnited States
CityWaikoloa, HI
Period13/8/413/8/9

Keywords

  • Grain size
  • Meta-stable β Ti alloys
  • Stress induced martensitic transformation
  • Tensile strength
  • Young's modulus

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Murayama, Y., Abe, D., & Chiba, A. (2013). Mechanical properties of meta-stable Ti-Cr-Sn-Zr alloys. In 8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 (Vol. 2, pp. 1537-1542). John Wiley and Sons Inc..