Corrosion and wear resistant metallic layers produced by electrochemical methods

Lasse Christoffersen, Ernst Emanuel Maahn

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

    Abstract

    Corrosion and wear-corrosion properties of novel nickel alloy coatings with promising production characteristics have been compared with conventional bulk materials and hard platings. Corrosion properties in neutral and acidic environments have been investigated with electrochemical methods. Determination of polarisation resistance during 100 hours followed by stepwise anodic polarisation seems to be a promising technique to obtain steady state data on slowly corroding coatings with transient kinetics. A slurry test enables determination of simultaneous corrosion and abrasive wear. Comparison of AISI 316, hard chromium and hardened Ni-P shows that there is no universal correlation between surface hardness and wear-corrosion loss. The possible relation between questionable passivity of Ni-P coatings and their high wear-corrosion loss rate compared to hard chromium is discussed.
    Original languageEnglish
    Title of host publicationProceedings of EUROCORR' 99
    Place of PublicationFrankfurt am Main
    PublisherDECHEMA
    Publication date1999
    Publication statusPublished - 1999
    EventEUROCORR '99 - Aachen, Germany
    Duration: 30 Aug 19992 Sep 1999

    Conference

    ConferenceEUROCORR '99
    CountryGermany
    CityAachen
    Period30/08/199902/09/1999

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