Nitridng usually improves wear resistance and can be accomplished using a gas or plasma method; it's necessary to find if there is any difference in surface roughness, wear and/or wear mechanism when choosing between methods for nitriding. In this study, Ball-on-disk wear test was compared on coupons nitrided with five different nitriding cycles that processed at temperatures of 500-570°C, with a processing time of 8 - 80 hrs. Different compound layer thicknesses were formed, (5-8μm), and a minimum of 0.38 mm case depth was produced. Nitrided samples were also compared to nitrocarburized and the nitrided coupons with a “0” compound layer in a ball-on-disk test. Few selected coupons were post-polished and wear test on ball-on-disk test was compared with the coupons without post polishing. Optical surface roughness using White Light Interferometry (WLIM) and metallurgical testing was performed.It was found that plasma nitrided coupons with post polishing had the highest wear resistance in comparison to the untreated coupons. Porous compound layer and oxide layer on a nitrocarburized coupon may have contributed to its wear resistance by retaining lubricant longer.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Tribological and Metallurgical Properties of Nitrided AISI 4340 Steel


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Ashara, Ali H. (Autor:in) / Zou, Qian (Autor:in)

    Kongress:

    SAE 2014 World Congress & Exhibition ; 2014



    Erscheinungsdatum :

    2014-04-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Effects of surface treatments on the fatigue strength of AISI 4340 aeronautical steel

    Nascimento, M.P. / Souza, R.C. / Pigatin, W.L. et al. | Tema Archiv | 2001


    Investigation into erosion rate of AISI 4340 steel during wire electrical discharge turning process

    Giridharan, Abimannan / Samuel, G. L. | British Library Online Contents | 2018


    Investigation of HVOF processed carbide based coating on AISI-4340

    Padmavathi, G. / Sarada, B. N. / Shanmuganathan, S. P. et al. | TIBKAT | 2021


    A Study of the Influence of WC-10Co-4Cr HVOF Coating on Mechanical Properties of AISI 4340 Steel

    Voorwald, Herman Jacobus Cornelis / Nascimento, Marcelino Pereira do / Souza, Renato Chaves et al. | SAE Technical Papers | 2001


    Comparative Tribological Behavior of Nitrided and Non-Nitrided SAE XEV-F Valve Steel in Dry Sliding

    Machado, I.F. / Correa, P.A. / Souza, R.M. | SAE Technical Papers | 2017