After a description of a new evaluation method of inclusions and a manufacturing process of the new clean valve spring steel SAE9254, this paper reports on a quantitative relationship between a non-metallic inclusion size measured at the fatigue fracture initiation site, its depth from the wire surface and the fatigue life which has been obtained through an investigation of both newly developed clean steel and conventional steel for valve springs.As a result, a remarkable improvement in the fatigue life of newly developed steel has been found. Fatigue crack propagation both from a non-metallic inclusion and from the wire surface is also discussed in this paper.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Improvement of Fatigue Life of Valve Spring Wire by Reducing Non-Metallic Inclusions


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Koarai, Jiro (Autor:in) / Shiwaku, Kiyoshi (Autor:in) / Kawaguchi, Yasunobu (Autor:in) / Yamada, Yoshiro (Autor:in)

    Kongress:

    SAE International Congress and Exposition ; 1985



    Erscheinungsdatum :

    01.02.1985




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Improvement of fatigue life of valve spring wire by reducing non-metallic inclusions

    Shiwaku,K. / Yamada,Y. / Koarai,J. et al. | Kraftfahrwesen | 1985


    Valve-spring wire

    Wood, E. | Engineering Index Backfile | 1938


    Valve-Spring Wire

    Wood, Ernest | Emerald Group Publishing | 1938


    Study of the Fatigue Failure of Engine Valve Springs Due to Non-Metallic Inclusions

    Choucair, H. / Zhou, J. / Jawad, B.A. et al. | British Library Conference Proceedings | 2012