Impact of Welded Joint on Cyclic Strength of Low-Alloyed Steels

Abstract

In this paper we considered changing the structure of the metal near the weld joint. The samples were tested under cyclic load with the asymmetry of the cycle of R=0.8 - 0.9. Influence of the weld on the cyclic strength is assessed. A methodology for determining residual life at any operation periods is developed.