[Kovove materialy - Metallic materials]
    Thu - March 28, 2024 - 20:17 No. of hits : 1736467 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 36 (1998), Issue 4

Carbon redistribution in ferritic steel weldments (in Czech)
MILLION, B., MICHALICKA, P., STRANSKY, K.
vol. 36 (1998), no. 4, pp. 281 - 297

Abstract
The paper presents a new model of carbon redistribution in ferritic steel weldments. The model respects the diffusion characteristics of carbon and substitutional elements, interaction of carbon with substitutional elements, and the rate of cementite formation and dissolution. By means of this model it is possible either to predict the carbon redistribution in steel weldments by using the known thermodynamic, kinetic, diffusion, and phase data, or to estimate the mentioned data from measured carbon redistribution. We have applied the quoted model in prediction of carbon redistribution in chosen steel weldments and in estimation of chromium-carbon interaction coefficients, carbon diffusion coefficients, and cementite formation rate. The results of theoretical calculations are compared with the results of measured carbon redistribution in the ferritic steel weldments Fe-0.7C/Fe-0.4C-mCr (where m =0-0.10-0.39-1.71 wt.% Cr) at the temperature 700 °C.

Key words
carbon redistribution, ferritic steel weldments, thermodynamic, diffusion, chromium-carbon interaction coefficients

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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