Activity of carbon and solubility of carbides in the FCC Fe-Mo-C, Fe-Cr-C, and Fe-V-C alloys View Full Text


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Article Info

DATE

1972-11

AUTHORS

T. Wada, H. Wada, J. F. Elliott, J. Chipman

ABSTRACT

The activity of carbon in austenitic Fe-Mo-C, Fe-Cr-C, and Fe-V-C alloys has been studied by equilibration with controlled CH4-H2 atmospheres at temperatures in the range 850° to 1200°C. The observations included a number of compositions in the two-phase fields, γ + carbide. Equations are given for the activity coefficient of carbon as a function of temperature and composition in the austenite field and from these the other thermodynamic properties of the solution may be computed as desired. The phase boundaries γ/γ + carbide were determined by breaks in the isoactivity lines. This was supplemented in the case of Fe-Mo-C alloys by metallographic linear analysis of equilibrated samples. The results confirm certain published phase diagrams and discredit others. More... »

PAGES

2865-2872

References to SciGraph publications

  • 1971-08. Thermodynamics of the Fcc Fe−Ni−C and Ni−C alloys in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1972-06. Thermodynamics of the fcc Fe-Mn-C and Fe-Si-C alloys in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1970-05. Thermodynamics of austenitic Fe-C alloys in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02652854

    DOI

    http://dx.doi.org/10.1007/bf02652854

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1043449181


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