Modelling and process optimisation for heavy plate rolling of structural steel

Tadeusz Siwecki

Corrosion & Metal Research Institute, KIMAB,Drottning Kristinas väg 48, 114 28 Stockholm, Sweden.

DOI:

https://doi.org/10.7494/cmms.2007.1.0116

Abstract:

The aim of the paper is to present the recent developments (in Sweden) regarding microstructure and mechanical property enhancement through thermo-mechanical controlled processing (TMCP) of structural steel plate and the use of predictive models. Simulation of the TMCP treatment in laboratory scale as well as the computer models for calculation of microstructure development and precipitate evolution during hot rolling are invaluable for design of rolling schedules. A brief survey is made of the models developed at the Corrosion & Metals Research Institute and used by the Swedish Steel Industry. The models can be used for predictions of recrystallization and grain growth of austenite after deformation, precipitation or dissolution of microalloying carbo-nitrides in austenite and phase transformation behaviour during accelerated cooling. The effect of TMCP- parameters, low reheating and high finish rolling temperature, as well as rolling schedules, cooling rate will be discussed with regard to the transformation characteristics as well as the microstructure and strength of structure steels.

Cite as:

Siwecki, T., (2007). Modelling and process optimisation for heavy plate rolling of structural steel. Computer Methods in Materials Science, 7(1), 29 – 35. https://doi.org/10.7494/cmms.2007.1.0116

Article (PDF):

Keywords:

HSLA steel, Modelling, Microstructure, Grain size, Recrystallization, Transformation, Precipitation, Microalloying, Mechanical properties, Hot rolling, Accelerated cooling

References: