Numerical modeling and experimental validation of microstructure in gray cast iron

Masoud Jabbari, Parviz Davami, Naser Varahram

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    Masoud Jabbari, Parviz Davami, and Naser Varahram, Numerical modeling and experimental validation of microstructure in gray cast iron, Int. J. Miner. Metall. Mater., 19(2012), No. 10, pp.908-914. https://dx.doi.org/10.1007/s12613-012-0646-7
    Masoud Jabbari, Parviz Davami, and Naser Varahram, Numerical modeling and experimental validation of microstructure in gray cast iron, Int. J. Miner. Metall. Mater., 19(2012), No. 10, pp.908-914. https://dx.doi.org/10.1007/s12613-012-0646-7
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    Numerical modeling and experimental validation of microstructure in gray cast iron

    • Department of Mechanical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark

    • Department of Materials Science and Engineering, Sharif University of Technology, Tehran 11365, Iran

      通信作者:

      Masoud Jabbari E-mail: mjab@mek.dtu.dk

    中文摘要

    To predict the amount of different phases in gray cast iron by a finite difference model (FDM) on the basis of cooling rate (R), the volume fractions of total γ phase, graphite, and cementite were calculated. The results of phase composition were evaluated to find a proper correlation with cooling rate. More trials were carried out to find a good correlation between the hardness and phase composition. New proposed formulas show that the hardness of gray cast iron decreases as the amount of graphite phase increases, and increases as the amount of cementite increases. These formulas are developed to correlate the phase volume fraction to hardness. The results are compared with experimental data and show reasonable agreement.

     

    Numerical modeling and experimental validation of microstructure in gray cast iron

    Author Affilications

      • Department of Mechanical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark

      • Department of Materials Science and Engineering, Sharif University of Technology, Tehran 11365, Iran

    • Received: 01 August 2011; Revised: 25 September 2011; Accepted: 10 October 2011;
    To predict the amount of different phases in gray cast iron by a finite difference model (FDM) on the basis of cooling rate (R), the volume fractions of total γ phase, graphite, and cementite were calculated. The results of phase composition were evaluated to find a proper correlation with cooling rate. More trials were carried out to find a good correlation between the hardness and phase composition. New proposed formulas show that the hardness of gray cast iron decreases as the amount of graphite phase increases, and increases as the amount of cementite increases. These formulas are developed to correlate the phase volume fraction to hardness. The results are compared with experimental data and show reasonable agreement.

     

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