High cycle and very high cycle fatigue properties and microscopic crack growth modeling of Ti‐6.5Al‐3.5Mo‐1.5Zr‐0.3Si titanium alloy at elevated temperatures
Abstract:Pulsating tension fatigue tests were conducted at 25 C, 150 C, and 250 C to investigate the effect of temperature on high cycle and very high cycle fatigue behavior of titanium alloy. The fatigue strength decreases with the increase of temperature, and the surface failure is more sensitive to temperature than interior failure. Afterwards, the fatigue fracture morphology, microstructure, and texture of titanium alloy were characterized. The results show that the fracture of larger α p phase with the maximum she… Show more
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