Effects of microstructure on the subsurface crack initiation of Ti-6Al-4V alloys

O. Umezawa, K. Nagai, H. Yokoyama, T. Suzuki

Research output: Contribution to conferencePaperpeer-review

4 Citations (Scopus)

Abstract

In order to clarify how the subsurface crack initiation site generates according to microstructure in high-cycle fatigue, Ti-6Al-4V alloys with different microstructures were subjected to fatigue test in liquid nitrogen. Microstructure influenced the S-N curves in long-life range. The subsurface crack initiation site was a facet or its aggregate which originated from the α grain transgranular cracking in each material. The size of subsurface crack initiation site highly depended on the maximum cyclic stress range.

Original languageEnglish
Pages287-298
Number of pages12
Publication statusPublished - 1997 Dec 1
Externally publishedYes
EventProceedings of the 1997 TMS Fall Symposium - Indianapolis, IN, USA
Duration: 1997 Sep 141997 Sep 18

Conference

ConferenceProceedings of the 1997 TMS Fall Symposium
CityIndianapolis, IN, USA
Period97/9/1497/9/18

ASJC Scopus subject areas

  • Engineering(all)

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