Detection and depth sizing of stress corrosion cracking in pipelines using tangential eddy current array(PPT)

摘要

THIS PAPER DESCRIBES the application of a tangential eddy-current array on pipelines to detect and size SCC depth with a dedicated new high-resolution multichannel probe connected to a portable acquisition system. Numerous tests were conducted on notched X-52 samples and on actual pipeline SCC. The result is a probe compatible with 25-125 cm (10-48 in) OD pipelines.