Influence of Annealing Treatments on Welded CuNi Sheets on the Corrosion Behaviour in Sea Water

Due to their good corrosion resistance in seawater, tubes, rods, and forgings made from copper-nickel alloys (Cu-Ni) are widely used in ship building, offshore platforms, desalination plants, and numerous other applications. Welding is a major technology for joining this material. Since the microstr...

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Bibliographic Details
Published inBHM. Berg- und hüttenmännische Monatshefte Vol. 166; no. 9; pp. 434 - 442
Main Authors Biezma, Maria Victoria, Linhardt, Paul, Strobl, Susanne, Haubner, Roland
Format Journal Article
LanguageEnglish
Published Vienna Springer Vienna 2021
Springer Nature B.V
Subjects
Copper
Copper base alloys
Corrosion resistance
Corrosion tests
Desalination
Earth and Environmental Science
Earth Sciences
Electrochemical corrosion
Forgings
Heat affected zone
Heat treatment
Microstructure
Mineral Resources
Nickel
Offshore platforms
Originalarbeit
Seawater
Tubes
Kupfer-Nickel-Legierung
Korrosionstest
Corrosion tests
Künstliches Meerwasser
Synthetic seawater
Schweißnaht
Copper-nickel alloy
Weld
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Summary:Due to their good corrosion resistance in seawater, tubes, rods, and forgings made from copper-nickel alloys (Cu-Ni) are widely used in ship building, offshore platforms, desalination plants, and numerous other applications. Welding is a major technology for joining this material. Since the microstructures of base material, weld seam, and heat affected zone may be quite different, the consequences with respect to corrosion must be considered. In this study the influence of microstructure on corrosion behaviour was investigated using welded test coupons of CuNi10Fe1.6 Mn, as-welded and after heat-treatment, by metallographic examination and electrochemical corrosion tests in synthetic seawater.
ISSN:0005-8912
1613-7531
DOI:10.1007/s00501-021-01131-0