Microstructure and mechanical properties of α' martensite type Ti alloys deformed under the α' processing

Hiroaki Matsumoto, Kazuki Kodaira, Kazuhisa Sato, Toyohiko J. Konno, Akihiko Chiba

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Microstructure and mechanical properties of cold groove rolled α' Ti-V-Al and Ti-V-Sn alloys were investigated. Microstructure after solution treatment at 1223 K and quenching into ice water showed the acicular martensitic structure of α' phase for (Ti-12mass%V)-2 mass%Al and (Ti-8 mass%V)-4mass%Sn alloys and (α' + α') phases for (Ti-12 mass%V)-6 mass%Sn alloy. After cold groove rolling at reduction of 75%, microstructure evolved into the equiaxed refined cell structure having the preferred rolling texture of 〈101̄0〈 parallel to rolling direction. After cold groove rolling, Young's modulus decreases to 47.5 GPa, in contrast, tensile strength increases to more than 1000 MPa accompanying with work nardening and gram rennement.

Original languageEnglish
Pages (from-to)2744-2750
Number of pages7
JournalMaterials Transactions
Volume50
Issue number12
DOIs
Publication statusPublished - 2009 Dec 1

Keywords

  • Cold groove rolling process
  • Tensile properties
  • Young's modulus
  • α' martensite titanium alloys
  • α' processing

ASJC Scopus subject areas

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

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