Fatigue fracture of the welded joints of commercially pure titanium after thermal cycling

Abstract

The results of investigation are given on the structural state and variation of mechanical properties characteristic of welded joints of commercially pure titanium subjected to static and cyclic loading after thermal-cycling treatment (TCT). On the basis of the pattern of variation in relative specimen deflection, fatigue-damage growth is estimated quantitatively for specimens cyclically deformed to the point where initiation and propagation of a main crack begins.