"In Situ-Tracking” Evaluation for Corrosion Progress at Fusion Boundary of Dissimilar Steel Welded Joints in H2S Containing Solution

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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.

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Periodical:

Materials Science Forum (Volumes 561-565)

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Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

2245-2248

Citation:

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

Online since:

October 2007

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$38.00

[1] C. Pan: Dissimilar Steel and Dissimilar Metal Welding (People's Communication Press, Beijing, China 2000) (in Chinese).

[2] C.D. Lundin: Weld. J. Vol. 61 (1982), p.58-s.

[3] G. Faber and T.G. Gooch: Weld. in the World Vol. 20 (1982), p.87.

[4] NACE Standard TM 0177, National Association of Corrosion Engineers, Houston, TX, (1990).

[5] M.D. Rowe, T.W. Nelson and J.C. Lippold: Weld. J. Vol. 87 (1999), p. 31s.

[6] C. Pan, A. Li, G. Sun and M. Holmquist M: Mater. Sci. Technol. Vol. 14 (1998), p.201.

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