Microstructure and mechanical properties of α′ martensite type Ti alloy deformation-processed under the α′ processing

Hiroaki Matsumoto, Kazuki Kodaira, Akihiko Chiba

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Microstructure and mechanical properties of cold grooved rolled α′ Ti-V-Al and Ti-V-Sn alloys were investigated. Microstructure after solution treatment at 950°C and quenching into ice water showed the acicular martensitic structure of α′' phase for (Ti-12 mass%V)-2 mass%Al and (Ti-8mass%V)-4mass%Sn alloys and (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 dislocation cell structure having the preferred rolling texture of 〈101̄0〉 parallel to rolling direction, After cold groove rolling, Young's modulus decreases to 47 GPa, in contrast, tensile strength increases to more than 1000 MPa accompanying with work hardening and grain refinement.

Original languageEnglish
Pages (from-to)989-996
Number of pages8
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume72
Issue number12
DOIs
Publication statusPublished - 2008 Dec

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Microstructure and mechanical properties of α′ martensite type Ti alloy deformation-processed under the α′ processing'. Together they form a unique fingerprint.

Cite this