Thermodynamic analysis of carbon migration in W1-1.0C steel in plasma surface chromizing

Chengzhong Chi, Zhiyong He, Yuan Gao, Zhong Xu

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    Chengzhong Chi, Zhiyong He, Yuan Gao, and Zhong Xu, Thermodynamic analysis of carbon migration in W1-1.0C steel in plasma surface chromizing, J. Univ. Sci. Technol. Beijing , 13(2006), No. 2, pp.131-134. https://dx.doi.org/10.1016/S1005-8850(06)60029-7
    Chengzhong Chi, Zhiyong He, Yuan Gao, and Zhong Xu, Thermodynamic analysis of carbon migration in W1-1.0C steel in plasma surface chromizing, J. Univ. Sci. Technol. Beijing , 13(2006), No. 2, pp.131-134. https://dx.doi.org/10.1016/S1005-8850(06)60029-7
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    Thermodynamic analysis of carbon migration in W1-1.0C steel in plasma surface chromizing

    • College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

    • Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, China

    基金项目: 

    This work was financially supported by the National Natural Science Foundation of China (No. 50374050).

      通信作者:

      Chengzhong Chi E-mail: chiczwang@163.com

    中文摘要

    W1-1.0C steel was chromized at 1173 K with double glow plasma surface alloying process, and the distribution of Fe, Cr, and C contents in the chromized layer was measured using glow discharge spectrum analysis (GDA). The behavior and mechanism of carbon migration during the formation of chromized layer were studied through thermodynamic analysis and calculation. The gradient of carbon chemical potential was regarded as the driving force of carbon migration. An equation was derived to describe the carbon content varying with the chromium content within the carbon-rich region. The calculated results from the equation approximated closely to the experimental ones.

     

    Materials

    Thermodynamic analysis of carbon migration in W1-1.0C steel in plasma surface chromizing

    Author Affilications

      • College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

      • Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, China

    • Funds: 

      This work was financially supported by the National Natural Science Foundation of China (No. 50374050).

    • Received: 05 March 2005;
    W1-1.0C steel was chromized at 1173 K with double glow plasma surface alloying process, and the distribution of Fe, Cr, and C contents in the chromized layer was measured using glow discharge spectrum analysis (GDA). The behavior and mechanism of carbon migration during the formation of chromized layer were studied through thermodynamic analysis and calculation. The gradient of carbon chemical potential was regarded as the driving force of carbon migration. An equation was derived to describe the carbon content varying with the chromium content within the carbon-rich region. The calculated results from the equation approximated closely to the experimental ones.

     

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