Rolling Contact Fatigue Testing of Stainless Steel and Cobalt-based Components Using Water as the Lubricant

    Published: Oct 2012

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    The current paper presents the results obtained from testing of high-nitrogen martensitic stainless steels and a cobalt-based alloy using an accelerated rolling contact fatigue tester, the Polymet test rig. Although demineralised water is not a good lubricant in terms of, for example, its capability of building up a sufficient film thickness, it was possible to rank the tested alloys according to their performance. Corrosion products were observed on the over-rolled tracks, and the materials' resistance to pitting corrosion was assessed.


    nitrogen stainless steel, tool steel, AISI 440C, cobalt, Polymet, rolling contact fatigue, hybrid bearing, cyclic potentiodynamic polarisation, pitting corrosion, hard water

    Author Information:

    Sherif, Mohamed Y.
    SKF Engineering & Research Centre, Nieuwegein, MT

    Han, Bo
    SKF Engineering & Research Centre, Nieuwegein, MT

    Kahlman, Lars
    SKF Sverige AB, Gothenburg,

    Committee/Subcommittee: A01.28

    DOI: 10.1520/STP104603

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