STP1532: Interdiffusion Phenomena of Zirconia-Nitride Layers on Coated AISI 310 Steel

    Gómez, Bernardo J.
    Instituto de Física Rosario (CONICET-UNR), Rosario,

    Nachez, Lucas
    Instituto de Física Rosario (CONICET-UNR), Rosario,

    Instituto Fluminense de Educação Superior, Santo Antônio de Pádua, RJ

    Caruso, Ricardo
    Instituto de Física Rosario (CONICET-UNR), Rosario,

    Laboratorio de Materiales Cerámicos, Universidad Nacional de Rosario, Rosario,

    Díaz-Parralejo, Antonio
    Departamento de Electrónica e Ingeniería Electromecánica, Escuela de Ingenierías Industriales, Universidad de Extremadura, Badajoz,

    Feugeas, Jorge N.
    Instituto de Física Rosario (CONICET-UNR), Rosario,

    de Sanctis, Oscar
    Laboratorio de Materiales Cerámicos, Universidad Nacional de Rosario, Rosario,

    Pages: 13    Published: Apr 2012


    Abstract

    Duplex coatings on stainless steel American Iron and Steel Institute (AISI) 310 were prepared by a double process consisting of a plasma nitriding treatment and a multilayer ZrO2-3 mol % Y2O3 coating grown by chemical solution deposition. In this paper we investigate the interdiffusion phenomena between the elements and the deposited phases. The zirconia coating process over the nitrided steel initiated strong diffusion events. Hydrogen diffuses easily throughout the coating and acts as a reducing agent. The layer of zirconia works as a sieve, retaining nitrogen and allowing the passage of hydrogen. The contribution of this study show the interdiffusion at the interfaces of elements in samples subjected to treatments known as duplex coatings.

    Keywords:

    ion nitriding, nitrided coatings, zirconia, mechanical properties


    Paper ID: STP153220120006

    Committee/Subcommittee: D02.L0

    DOI: 10.1520/STP153220120006


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