"In Situ-Tracking” Evaluation for Corrosion Progress at Fusion Boundary of Dissimilar Steel Welded Joints in H2S Containing Solution
The present work studied the corrosion property around the fusion boundaries of a dissimilar steel welded joint in as-welded condition and after post-weld heat treatment (PWHT) in H2S containing solution with different times. An “in-situ-tracking” observation was proceeded for evaluating corrosive progress at the fusion boundary by using a scanning electron microscope (SEM). The results revealed that the fusion boundary was the worst region for corrosion resistance when comparing with other zones, and a broad boundary had a stronger resistance for “hydrogen induced disbonding” than a narrow one.
Young Won Chang, Nack J. Kim and Chong Soo Lee
C. X. Pan and Q. Fu, ""In Situ-Tracking” Evaluation for Corrosion Progress at Fusion Boundary of Dissimilar Steel Welded Joints in H2S Containing Solution", Materials Science Forum, Vols. 561-565, pp. 2245-2248, 2007