Thermal-mechanical-microstructural model of rolling and cooling of rails

Grzegorz Smyk , Monika Pernach, Mateusz Ambroziński

AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland.

DOI:

https://doi.org/10.7494/cmms.2015.3.0546

Abstract:

The paper describes complex thermal-mechanical-microstructural model of rolling and cooling of rails. The equations describing microstructure evolution and phase transformations in rail steels were implemented in the Finite Element code, which simulates thermal and mechanical phenomena. Numerical tests of the model were performed. Simulations covered last three passes of the rolling process followed by controlled cooling of the rail head. The results included changes of the temperature during the whole manufacturing cycle, as well as changes of the austenite grain size during rolling and kinetics of the phase transformations during cooling. Numerical tests confirmed good predictive capabilities of the model.

Cite as:

Smyk, G., Pernach, M., & Ambroziński, M. (2015). Thermal-mechanical-microstructural model of rolling and cooling of rails. Computer Methods in Materials Science, 15(3), 416-426. https://doi.org/10.7494/cmms.2015.3.0546

Article (PDF):

Keywords:

Pearlitic steels, Rails, Controlled cooling, Modelling, Validation

Publication dates:

Received: 23.05.2015, accepted: 29.09.2015, published:

Publication type:

Original scientific paper

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