Qi Huang

TL;DR: In this paper, ultrasonic fatigue tests were performed to investigate high and very high cycle fatigue behaviors of a laser additively manufactured Inconel 718 (IN718) alloy in the as-deposited condition.

TL;DR: In this paper, the effect of stress ratio on the very high cycle fatigue (VHCF) behaviors of titanium alloy (Ti-8Al-1Mo-1V) was investigated.

TL;DR: In this paper, the deformation and compressive residual stress, induced by the laser shock peening (LSP), present gradient distributions along the depth direction, and high-angle grain boundaries (HAGB, >15°) are increased by deformation twins, which are introduced into primary α phases during the plastic deformation.

TL;DR: In this article, a turbine engine blade titanium alloy (Ti-8Al-1Mo-1V) was employed to perform ultrasonic fatigue experiments up to 1010 cycles at the stress ratios (R) of −1, 0.1 and 0.5.

TL;DR: The bilinear model, extended from the Goodman method, can better estimate the mean stress sensitivity of this titanium alloy and the new model, based on the Murakami model, can provide more appropriate predictions for notch fatigue strength.