Fatigue crack propagation characteristics and deformation-induced transformation in Ti-6Al-2Sn-4Zr-6Mo alloy

M. Niinomi, T. Kobayashi, A. Shimokawa

Research output: Contribution to conferencePaperpeer-review

Abstract

The fatigue crack propagation characteristics of the Ti-6Al-2Sn-4Zr-6Mo forged bar in as-solutionized and aged conditions were investigated. Fatigue crack propagation rate in Paris' regime is smaller in as-solutionized conditions than in aged conditions. Crack closure is greater in as-solutionized conditions than in aged conditions. The deformation-induced martensite is detected on the fatigue fracture surface of the as-solutionized Ti-6Al-2Sn-4Zr-6Mo. Deformation-induced transformation is one of the main causes of inducing crack closure and retarding fatigue crack propagation of the as-solutionized Ti-6Al-2Sn-4Zr-6Mo.

Original languageEnglish
Pages141-149
Number of pages9
Publication statusPublished - 1994 Dec 1
EventProceedings of the 1st International Symposium on Metallurgy and Technology of Practical Titanium Alloys - Chiba, Jpn
Duration: 1993 Dec 71993 Dec 10

Other

OtherProceedings of the 1st International Symposium on Metallurgy and Technology of Practical Titanium Alloys
CityChiba, Jpn
Period93/12/793/12/10

ASJC Scopus subject areas

  • Engineering(all)

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