Prediction of statically recrystallized microstructure during extrusion of aluminum alloys

Peter Cvahte¹, Goran Kugler², Tomaž Rodič²

¹Impol 2000 d.d., Partizanska 38, 2310 Slovenska Bistrica, Slovenia.
²Faculty of Natural Sciences and Engineering University of Ljubljana, Askerceva 12, 1000 Ljubljana, Slovenia.

DOI:

https://doi.org/10.7494/cmms.2010.4.0298

Abstract:

To predict evolution of microstructure of aluminum alloys after deformation a numerical model based on the method of cellular automata (CA) has been developed and combined with the finite element model (FEM). The main objective of the combined FEM-CA model is to enable numerical predictions of growth of grains in the subsurface layers of extruded bars that occurs after deformation before the quenching in the industrial hot extrusion production chain. The results of numerical simulations show a good agreement with the results of optical micrographs of the bars taken from the industrial experiments. The outcomes of this research demonstrate that numerical models can be successfully applied to simulate complex thermo-mechanical and metallurgical processes during hot extrusion.

Cite as:

Cvahte, P., Kugler, G., & Rodič, T. (2010). Prediction of statically recrystallized microstructure during extrusion of aluminum alloys. Computer Methods in Materials Science, 10(4), 294 – 306. https://doi.org/10.7494/cmms.2010.4.0298

Article (PDF):

Keywords:

Hot working, Extrusion, Static recrystallization, Finite element method, Cellular automata

References: