A lecture given by Sundaranam Babu, at the Adventures in the Physical Metallurgy of Steels (APMS) conference held in Cambridge University. The interpretation of bainitic microstructures that develop very rapidly during flash processing. An innovative rapid heat-treating process (flash processing) that uses rapid heating to austenite phase field and quenching has been developed to produce high strength steels. Flash processing lead to tensile strengths greater than 1600 MPa and uniform elongation greater than 7%. In order to rationalise the microstructure evolution, the microstructures before and after processing were characterised. The initial microstructure contained ferrite and spherodised cementite. The final microstructure, after processing, contained a mixture of bainite and martensite with interspersed un-dissolved cementite particles. The above microstructure evolution was evaluated with computational thermodynamic and kinetic models. Interface motion between M3C diffusion couple, subjected to linear heating, supported the above microstructure evolution. The calculations show that the rapid dissolution of M3C in Fe-C system, in contrast to sluggish dissolution in Fe-Cr-C system. Generality of flash processing for wider range of steel systems is explored.


    Zugriff

    Zum TIB AV-Portal


    Exportieren, teilen und zitieren



    Titel :

    Flash microstructure


    Untertitel :

    Conference/Talk


    Weitere Titelangaben:

    Flash microstructures: APMS conference


    Beteiligte:
    Babu, Sudarsanam (Autor:in) / Lolla, T. (Autor:in) / Hanhold, B. (Autor:in) / Tung, D. (Autor:in) / Cola, G. (Autor:in)


    Erscheinungsdatum :

    2013-01-01


    Format / Umfang :

    668MB, 00:35:50:05



    Medientyp :

    Audiovisuelles Material


    Format :

    Audiovisuelles Material


    Sprache :

    Englisch




    Flash-point

    Online Contents | 2001


    News flash

    Online Contents | 1996


    News flash

    Online Contents | 1996


    The structural integrity of flash-butt welded premium rail steel – Evaluation of strength, microstructure and defects

    Micheletto, Anthony / Cookson, John / Pang, Yong et al. | SAGE Publications | 2021


    NEWS FLASH - Books

    Online Contents | 2003



    Vorschau

    Preview Image