STP1327: Metallurgical and Tribological Evaluation of 32CrMoV13 Deep Nitrided Steel and XD15N™ High Nitrogen Martensitic Steel for Aerospace Applications

    Pichard, I
    Senior Engineers and Manager, Laboratoire Analyse Mesure - SNR ROULEMENTS, Annecy,

    Girodin, D
    Senior Engineers and Manager, Laboratoire Analyse Mesure - SNR ROULEMENTS, Annecy,

    Dudragne, G
    Senior Engineers and Manager, Laboratoire Analyse Mesure - SNR ROULEMENTS, Annecy,

    Moraux, J-Y
    Engineer, AUBERT & DUVAL, Neuilly Sur Seine,

    Pages: 15    Published: Jan 1998


    Abstract

    Aerospace bearing applications are increasingly required to operate under very severe operational conditions in terms of speed, load, temperature and environment. Reliability is also required for safety concerns.

    Therefore, each bearing application is carefully designed and the bearing steel selected to withstand these conditions.

    To meet these requirements, deep nitriding of 32CrMoV13 steel and a new nitrogen martensitic steel have been developed.

    The material properties of these steels in relation with manufacturing processes are presented and compared with usual steels.

    The new steels provide in their respective coverage, better rolling contact fatigue life, mechanical properties and corrosion resistance.

    Further characterizations are still in progress.

    Keywords:

    bearing steel, nitrided steel, high nitrogen steel, stainless steel, aerospace applications, material properties, mechanical properties, corrosion resistance


    Paper ID: STP12141S

    Committee/Subcommittee: A01.10

    DOI: 10.1520/STP12141S


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