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

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

Research output: Contribution to conferencePaper

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

Fingerprint

Crack initiation
Microstructure
Fatigue of materials
Liquid nitrogen

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Umezawa, O., Nagai, K., Yokoyama, H., & Suzuki, T. (1997). Effects of microstructure on the subsurface crack initiation of Ti-6Al-4V alloys. 287-298. Paper presented at Proceedings of the 1997 TMS Fall Symposium, Indianapolis, IN, USA, .

Effects of microstructure on the subsurface crack initiation of Ti-6Al-4V alloys. / Umezawa, O.; Nagai, K.; Yokoyama, H.; Suzuki, Tohru.

1997. 287-298 Paper presented at Proceedings of the 1997 TMS Fall Symposium, Indianapolis, IN, USA, .

Research output: Contribution to conferencePaper

Umezawa, O, Nagai, K, Yokoyama, H & Suzuki, T 1997, 'Effects of microstructure on the subsurface crack initiation of Ti-6Al-4V alloys', Paper presented at Proceedings of the 1997 TMS Fall Symposium, Indianapolis, IN, USA, 97/9/14 - 97/9/18 pp. 287-298.
Umezawa O, Nagai K, Yokoyama H, Suzuki T. Effects of microstructure on the subsurface crack initiation of Ti-6Al-4V alloys. 1997. Paper presented at Proceedings of the 1997 TMS Fall Symposium, Indianapolis, IN, USA, .
Umezawa, O. ; Nagai, K. ; Yokoyama, H. ; Suzuki, Tohru. / Effects of microstructure on the subsurface crack initiation of Ti-6Al-4V alloys. Paper presented at Proceedings of the 1997 TMS Fall Symposium, Indianapolis, IN, USA, .12 p.
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