A Prediction of Quenching Parameters Using Inverse Analysis

    (Received 20 December 2013; accepted 22 February 2014)

    Published Online: 2014

    CODEN: MPCOAD

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    Abstract

    The cooling curves of still water and of water-based polymer quenchant polyalkylene glycol (PAG) were recorded with the ISO Inconel 600 probe with 12.5 diameter and 60 mm length equipped with a type K thermocouple inserted into the probe's geometric center. The research included recording of cooling curves for still water in temperature range from 20 to 60°C, as well as quenching experiments with water based polymer solutions with concentration from 10 to 30 vol. % of PAG. The possibility of a new cooling curve determination method for any given water temperature based on interpolation model and experimental data for cooling curves at three different water temperatures was tested. Surface temperature, heat flux density, and heat transfer coefficient (HTC) were estimated based on the recorded cooling curve at the center of the ISO Inconel 600 probe using the solutions of inverse heat conduction problem (IHCP). The results of the inverse heat transfer analysis of the ISO Inconel 600 probe cooling in water and water based polymer solutions were compared to the results of the commercial software ivf SQintegra ver4.0 for the same cooling experiments. The proposed inverse determination of HTC can be used for the specification of boundary conditions in numerical simulations of quenching axisymmetric work pieces with similar dimensions to the ISO Inconel 600 probe.


    Author Information:

    Landek, Darko
    Univ. of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Quenching Research Centre, Zagreb,

    Župan, Josip
    Univ. of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Quenching Research Centre, Zagreb,

    Filetin, Tomislav
    Univ. of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Quenching Research Centre, Zagreb,


    Stock #: MPC20130109

    ISSN: 2165-3992

    DOI: 10.1520/MPC20130109

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    Author
    Title A Prediction of Quenching Parameters Using Inverse Analysis
    Symposium , 0000-00-00
    Committee A01