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Modelling of Precipitation Kinetics with Simultanous Stress Relaxation

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Abstract

Misfit strain connected with the formation of large internal stresses may drastically influence the kinetics of precipitation. A new model for the simultaneous precipitate growth and misfit stress relaxation in binary systems has been developed based on the idea that the internal stresses are relaxed by generation or annihilation of vacancies at the matrix/precipitate interface. The model is applied to the Fe-C system by considering the growth of the cementite precipitate in the ferritic matrix. The influence of the stress relaxation on the precipitate growth kinetics is demonstrated.

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Authors and Affiliations

  1. Institute of Mechanics, Montanuniversität Leoben, Franz-Josef-Strasse 18, A-8700, Leoben, Austria

    Franz Dieter Fischer & Ernst Gamsjäger

  2. Materials Center Leoben Forschungsgesellschaft GmbH, A-8700, Leoben, Austria

    Franz Dieter Fischer, Jiri Svoboda, Ernst Gamsjäger, Ernst Kozeschnik & Bernhard Sonderegger

  3. Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Zizkova 22, CZ-616 62, Brno, Czech Republic

    Jiri Svoboda

  4. Institute for Materials Science, Welding and Forming, University of Technology, Kopernikusgase 24, A-8010, Graz, Austria

    Ernst Kozeschnik & Bernhard Sonderegger

Authors
  1. Franz Dieter Fischer
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  2. Jiri Svoboda
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  3. Ernst Gamsjäger
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  4. Ernst Kozeschnik
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  5. Bernhard Sonderegger
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Fischer, F.D., Svoboda, J., Gamsjäger, E. et al. Modelling of Precipitation Kinetics with Simultanous Stress Relaxation. MRS Online Proceedings Library 979, 1104 (2006). https://doi.org/10.1557/PROC-979-0979-HH11-04

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  • DOI: https://doi.org/10.1557/PROC-979-0979-HH11-04

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