α′ Martensite Ti-V-Sn alloys with low Young's modulus and high strength

Hiroaki Matsumoto, Sadao Watanabe, Shuji Hanada

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Microstructures and mechanical properties of strength, ductility and Young's modulus were investigated using quenched and cold rolled Ti-V and Ti-V-Sn alloys consisting of α′ martensite. Young's modulus of both quenched and cold rolled (Ti-8 mass% V)-Sn alloys decreases with increasing Sn content, which is attributable to the lattice expansion by Sn addition. During cold rolling to a reduction of 86%, acicular α′ martensite structure in quenched Ti-8 mass% V and (Ti-8 mass% V)-4 mass% Sn changes into extremely fine dislocation cell-like structure with an average size of 60 nm, thereby increasing strength drastically. Sn addition to Ti-V alloys is effective for increasing ductility with keeping low Young's modulus and high strength. Thus, cold rolled α′ martensite Ti-V-Sn alloy is found to be attractive as a new type Ti alloy with low Young's modulus and high strength.

Original languageEnglish
Pages (from-to)39-48
Number of pages10
JournalMaterials Science and Engineering A
Volume448
Issue number1-2
DOIs
Publication statusPublished - 2007 Mar 15

Keywords

  • Tensile properties
  • Titanium-vanadium-tin alloy
  • Young's modulus
  • α′ Martensite

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'α′ Martensite Ti-V-Sn alloys with low Young's modulus and high strength'. Together they form a unique fingerprint.

  • Cite this