Microscopy study of intergranular stress corrosion cracking of X-52 line pipe steel

作者：Li J^*; Elboujdaini M; Fang B; Revie RW; Phaneuf MW

来源：Corrosion, 2006, 62(4): 316-322.

• focused ion beam microscopy
• intergranular cracking
• pipeline steel
• scanning electron microscopy
• stress corrosion cracking
• transmission electron microscopy
• transgranular cracking

Although the failure of X-52 linepipe steel due to stress corrosion cracking (SCC) remains a concern in the oil and gas industry, the mechanisms responsible for crack initiation and propagation are not well understood. In this work, SCC from a section of in-service X-52 linepipe steel was investigated. Features of intergranular cracks were characterized using optical microcopy, scanning electron microscopy (SEM), focused ion beam (FIB) microscopy. and transmission electron microscopy (TEM). The effect of carbide and phosphorus on crack propagation was emphasized.

• 出版日期2006-4