WRC 465
Technologies for the Evaluation of Non-Crack-Like Flaws in Pressurized Components -- Erosion/Corrosion, Pitting, Blisters, Shell Out-Of-Roundness, Weld Misalignment, Bulges and Dents
Bulletin / Circular by Welding Research Council, Inc., 2001
D. A. Osage, P. Krishnaswamy, D. R. Stephens, P. Scott, J. Janelle, R. Mohan, G. M. Wilkowski
Full Description
An overview, comparison, and evaluation of assessment methods for non-crack-like flaws in pressurized components such as straight piping, cylindrical and spherical vessels are provided in this report. The non-crack-like flaws include: flaws include local thin areas; pitting damage; hydrogen blisters and laminations; geometric irregularities such as weld misalignment, shell out-of-roundness, and bulges; and external force damage that typically results in dents or dent-gouge combinations. The vast majority of this work was performed by a Joint Industry Program on Fitness-For-Service administered by The Materials Properties Council working in conjunction with the API Committee on Refinery Equipment's Task Group on Fitness-For-Service. The work performed by these groups forms the technical basis for API 579, and as is shown in this report, a significant amount of the Fitness-For-Service technology for non-crack-like flaws that is available in the literature.