Abstract
As already described earlier, stainless steels can form on their surface a protective, passive film on exposure to a service environment. This passive film, especially its stability and homogeneity, is responsible for the corrosion resistance of these materials. Welding can have a strong impact due to the typical segregated, multiphase weld metal structures and the additional influence of the weld heat cycle. This may result in a lower corrosion resistance of the weld metal compared to the base metal in case of a similar chemical composition. To describe the corrosion behaviour, many different tests have been developed, using different environments, different test temperatures and different test specimen preparation. But due to the variety of parameter settings and test conditions, the corrosion test results are often not comparable. To overcome this problem, standardized corrosion tests were established. Specimen preparation, test solution composition, test duration and temperature setting are defined to allow a “world wide” comparison. This paper gives an overview of which standardized tests are applied in practical use for typical types of material. Additionally some results of weld metal and joint testing are shown from which the influence of different thermal cycles, alloying concepts, surface conditions and shielding gases on the corrosion behaviour can be derived.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Gooch T.G.: Corrosion behaviour of welded stainless steel, Supplement to the Welding Journal, 05/1996.
Folkard E., Rabensteiner G., Perteneder E., Schabereiter H., Tösch J.: Welding Metallurgy of Stainless Steels, Springer Verlag Wien, 1988.
Dillon C.P: Corrosion resistance of stainless steels, Marcel Dekker, Inc., New York-Basel-Hong Kong, 1995, ISBN 0-8247-9629–2.
Killing U., Killing R., Forster H.: Qualitätsanforderungen der Chemieunter-nehmen beim Herstellen von Anlagen, DVS 200.
Schabereiter H., Posch G., Tösch J., Perteneder E., Gugimeier K.H.: Metallurgical aspects in welding single layer claddings with CrNi(Mo)-alloyed filler materials without post weld heat treatment, IIW-Doc. IX-2029–02.
Posch G., Schultze S., Tösch J., Triebel J.: Corrosion testing of single layer austenitic overlays on unalloyed steels, IIW-Doc. II-1501–03.
Rabensteiner G., Schabereiter H.: Einfluß von Spannungsarmglühungen auf das Korrosionsverhalten und die Zähigkeitseigenschaften von austenitischem Schweiß-gut, BHM, Jahrgang 120, Heft 11, 1975.
Rockel M.B., Herda W. R.: Die Oberflächenbehandlung von Schweißverbindungen hochkorrosionsbeständiger 6% Mo-Stähle und Nickelbasis-Legierungen; WuK, Heft 7, 07/1992.
Smith L., Klein M.: “Acceptance criteria for oxidation of stainless steel weldments”, Stainless Steel World, 12/1996.
Holmberg B., Thür J.: Nachbehandlung und Reinigung von rostfreien Edelstählen nach dem Schweißen, Schweiß- & Prüftechnik 7/99.
Saggau R., Pries H., Finke M.: Schweißbedingte Anlauffarben und ihr Einfluß auf die Korrosion hochlegierter CrNi-Stähle, Zeitschrift für Metallkunde 92, 2001, Heft 3.
Renner M., Heubner U., Rockel M.B., Wallis E.: Temperature as a pitting und crevice corrosion criterion in the FeCl3 test, Werkstoffe und Korrosion, 37, 1986, S. 183–190.
Rabensteiner G., Tösch J.: Die Sonderstellung des Stickstoffs bei der Schmelzschweißung von korrosionsbeständigen Duplexwerkstoffen, BHM, Jahrgang 140, Heft 1, 1995.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Posch, G., Tösch, J. Corrosion Behaviour of High Alloyed Stainless Steel Weld Metals, Joints and Overlays in Standardized Corrosion Tests with some Examples. Weld World 49, 58–67 (2005). https://doi.org/10.1007/BF03266490
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03266490