Two wrought piping alloys, 70-30 and 90-10 copper-nickel, were each galvanically coupled to each of four fitting alloys in sulfide-modified seawater for 30 days. The fitting alloys used were bronze (Composition M), cast Monel, wrought nickel-aluminum bronze, and cast 70-30 copper-nickel. The piping material/fitting material area ratio was 3:1, and the seawater velocity was 2.4 meters per second. Results indicated that the galvanic relationship between M-bronze or Monel and 70-30 copper-nickel is affected by sulfide additions in a manner that increases the corrosion of the fitting material, whereas similar couples with 90-10 copper-nickel show little effect of sulfide. (DePo)


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    Title :

    Galvanic corrosion of piping and fitting alloys in sulfide-modified seawater


    Additional title:

    Galvanische Korrosion von Rohrleitungs- und Beschlaegelegierungen in sulfidmodifiziertem Meerwasser


    Contributors:
    Hack, H.P. (author)

    Published in:

    Publication date :

    1979


    Size :

    31 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English






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