Effect of elevated temperature and welding on low cycle fatigue strength of titanium alloys

Abstract

An attempt is made to evaluate effect of elevated temperature and welding process on low cycle fatigue properties of two titanium alloys. Strain controlled low cycle tension-compression tests were carried out at 20°C, 200°C and 350°C temperatures. Specimens machined from as- supplied material and those with the weld and heat af-fected zone were used. Conclusions relating the effect of weld, heat affected zone and test temperature on low cycle fatigue properties are made.