High-temperature strength and fracture toughness in γ-phase titanium aluminides

R. Gnanamoorthy, Y. Mutoh, N. Masahashi, M. Matsuo

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

High-temperature strengths and fracture toughnesses of γ-phase titanium aluminides were estimated at room and elevated temperatures. The effects of chromium on these mechanical properties were investigated. It was found that addition of chromium substantially improved the room- and high-temperature strength and toughness of the binary titanium aluminides. The transition temperature at which the strength drops was found to increase due to the addition of chromium. The fracture behaviour of binary and chromium-alloyed titanium aluminides were investigated. The fracture mechanism was affected by the addition of chromium. Ductile tearing was observed for the ternary material at 800 °C, and this was delayed for the binary material.

Original languageEnglish
Pages (from-to)6631-6638
Number of pages8
JournalJournal of Materials Science
Volume28
Issue number24
DOIs
Publication statusPublished - 1993 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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