Effect of CP on the Occurrence of SCC in X80 and X100 Pipe Steels in a Near-neutral pH Environment

Abstract In this work, stress corrosion cracking (SCC) of X80 and X100 pipe steels under various cathodic protection (CP) levels in near-neutral pH environment was investigated. The results showed that X100 tended to form longer SCC cracks compared to X80 steel. The crack depth exhibited normal/quasi-normal distributions for both materials. Only a small fraction of cracks within the total number of cracks formed would propagate deep into the …