Propagation Behavior of Fatigue Crack for Ti-1023 Alloy
The rule of fatigue crack propagation for Ti-1023 alloy were studied. The effects of sampling orientation and stress ratio on the fatigue crack propagation (FCP) rate was investigated. The results show that, at the same stress intensity factor range, the fatigue crack growth rate becomes higher with the increase of stress ratio. While sampling orientation has no effect on fatigue crack growth behavior. The validate of the law of the full range of crack growth rate are validated, which can provide the foundation for predicting the fatigue life.