SIMULATION OF EVOLUTION OF CARBONITRIDE PRECIPITATE ENSEMBLES OF SEVERAL COMPOSITIONS IN STEELS DOPED WITH STRONG CARBONITRIDE-FORMING ELEMENTS

1 PASYNKOV A.Yu.
Co-authors:
1 POPOV V.V. 1 GORBACHEV I.I.
Institution:
1 M.N. Miheev Institute of Metal Physics, UB RAS, Ekaterinburg, Russian Federation, apasynkov@list.ru*
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
825-830
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
65 views / 14 downloads
Abstract

A numerical method of simulation of evolution of complex precipitates in multiphase multicomponent systems is suggested. This method is based on the mean field approximation for the description of evolution of the pre-existing particles and on the classical theory of nucleation for calculation of the rate of formation of new nuclei. It takes into account the polydispersity of precipitate ensembles and can be used at all the stages of precipitates evolution, namely, nucleation, growth, dissolution, coarsening and transition stages between the growth or dissolution and coarsening. The application of this method is demonstrated by an example of carbonitrides evolution in low-carbon steel doped with Ti and Nb.

Keywords: Precipitate evolution; computer simulation; nucleation; multicomponent system

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