[G] Ti-Ti alloy and Ceramics

[349] The effect of load hold and microstructures on the fatigue of Ti-6Al-4V alloys

*HAO-YU HU¹, Fabien Briffod², Takayuki Shiraiwa², Manabu Enoki² (1. The University of Tokyo, 2. Tokyo University)

Keywords:Ti-6Al-4V、dwell-fatigue、microstructrual effects、digital image correlation、crack growth rate

The reduction of fatigue life was confirmed when introducing load hold at peak stresses during fatigue in Ti-6Al-4V alloys. Load hold seemed most detrimental in lamellar structures.