The Paton Welding Journal, 2003, №06

2003 №06 (02)

2003 №06 (04)

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The Paton Welding Journal, 2003, #6, 11-13 pages

Investigation of corrosion fracture of welded joints in Ni-Cr-Mo alloys in titania production environment

K.A. Yushchenko¹, T.M. Starushchenko¹, A.A. Nakonechny¹, L.V. Chervyakova¹, T.E. Shepil², V.A. Kachanov², Yu.B. Danilov²

¹E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
²Open Joint Stock Company «UkrNIIkhimmash», Kharkiv, Ukraine

Abstract
Susceptibility of ThyssenKrupp VDM nickel-chromium-molybdenum alloys to corrosion cracking was evaluated. Samples with annular welds made by the argon-arc method using filler wire of the AWS A.5.14ERNiCrMo-13 grade were tested in the titania production environment. It is shown that reliable data can be generated from testing experimental models or stressed welded samples with an annular weld simulating residual stresses in a structure
Keywords: nickel-chromium-molybdenum alloys, welded joints, titania, general corrosion, corrosion cracking, structural materials, metallography, annular test sample, knife-line corrosion, pitting fracture

References

1. Kachanov, V.A., Gvozdikova, E.K., Nikitin, D.G. (1985) Corrosion-electrochemical behaviour of structural materials in sulphuric acid solutions in the presence of reducing agents. Zashchita Metallov, 4, 24-25.
2. Kachanov, V.A., Nikitin, D.G., Gvozdikova, E.K. (1978) Examination of corrosion and electrochemical behaviour of 06Kh28MDT alloy in titania process media. Khim. i Neft. Mashinostroenie, 6, 18-21.
3. (1976) Strength of welded structures in aggressive media. Moscow.

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Suggested Citation

K.A. Yushchenko, T.M. Starushchenko, A.A. Nakonechny, L.V. Chervyakova, T.E. Shepil, V.A. Kachanov, Yu.B. Danilov (2003) Investigation of corrosion fracture of welded joints in Ni-Cr-Mo alloys in titania production environment. The Paton Welding J., 06, 11-13 .

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