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Quantifying the Solute Drag Effect of Cr on Ferrite Growth Using Controlled Decarburization Experiments

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Abstract

The effect of Cr on the kinetics of ferrite growth from austenite was studied using the technique of controlled decarburization over the temperature range 850 °C to 775 °C. At 850 °C, the observed ferrite growth kinetics is in excellent agreement with the predictions of the local equilibrium negligible partition (LENP) model. At temperatures below 850 °C, the growth kinetics becomes increasingly slower than the predictions of the LENP model. This was interpreted in terms of the solute-drag effect of Cr, and the cross-boundary diffusion coefficient of Cr was estimated.

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Acknowledgment

One of the authors (HSZ) gratefully acknowledges the financial support of the Natural Science and Engineering Research Council of Canada.

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Authors and Affiliations

  1. CEA-Grenoble DRFMC/SP2M/LEMMA GEM-Minatec, Grenoble, 38052, Cedex 9, France

    A. Béché (Graduate Student)

  2. Material Science and Engineering Department, McMaster University, L8S 4L7, Hamilton, ON, Canada

    H.S. Zurob (Assistant Professor)

  3. Department of Materials Engineering, Monash University, Clayton, 3800, Victoria, Australia

    C.R. Hutchinson (Senior Lecturer)

Authors
  1. A. Béché
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  2. H.S. Zurob
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  3. C.R. Hutchinson
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Corresponding author

Correspondence to H.S. Zurob.

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Manuscript submitted March 1, 2007.

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Béché, A., Zurob, H. & Hutchinson, C. Quantifying the Solute Drag Effect of Cr on Ferrite Growth Using Controlled Decarburization Experiments. Metall Mater Trans A 38, 2950–2955 (2007). https://doi.org/10.1007/s11661-007-9353-9

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