CREEP CRACK-GROWTH IN LOW-ALLOY STEEL WELDMENTS

Developments in the determination and analytical representation of cre ep crack growth property data during the past 30 years are reviewed. T he testing and data analysis of weldments involve additional complexit ies, and these are appraised with respect to low alloy steel weldments . Creep crack initiation and growth properties are dependent on creep deformation and rupture ductility characteristics. Consideration is gi ven to the relationship between these properties using data determined for a 1/2Cr1/2Mo1/4V/2 1/4CrMo pipe joint.