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.
|出版物ステータス||Published - 1997 12 1|
|イベント||Proceedings of the 1997 TMS Fall Symposium - Indianapolis, IN, USA|
継続期間: 1997 9 14 → 1997 9 18
|Conference||Proceedings of the 1997 TMS Fall Symposium|
|市||Indianapolis, IN, USA|
|期間||97/9/14 → 97/9/18|
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