Effects of strain-induced transformation and temperature on fracture toughness of titanium alloys

Toshiro Kobayashi, Mitsuo Niinomi, Ikuhiro Inagaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, a tensile test, Charpy impact test, and static and dynamic fracture toughness tests were carried out at various temperatures on typical titanium alloys bearing an unstable β phase. The strain-induced a″ martensitic transformation occurred in the (α+β) type Ti-6Al-2Sn-4Zr-6Mo alloy and the dynamic fracture toughness increased at 223 K. The strain-induced α′ martensitic transformation occurred in the (α+β) type Ti-6Al-4V alloy, and the static and dynamic fracture toughness increased at 123 and 223 K, respectively. Strength increased at low test temperatures in this alloy. A mechanical twin occurred in the β type Ti-15V-3Al-3Mn-3Cr alloy elongation increased at 123 K.

Original languageEnglish
Pages (from-to)537-544
Number of pages8
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume75
Issue number3
DOIs
Publication statusPublished - 1989 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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