Modelling of hot rolling 6061 aluminium alloy - state variables and grain size prediction

• Autorzy: De Pari Jr. L. , Misiolek W.

Warianty tytułu

PL

Modelowanie procesu walcowania na gorąco stopu aluminium 6061-parametryprocesu oraz przewidywane wielkości ziarna

• Konferencja: 14th KomPlasTech Conference, Zakopane, January 14-17, 2007
• Języki publikacji: EN

Abstrakty

EN

The numerical modeling of hot rolling of a selected 6xxx aluminum alloy was performed in order to predict process variables such as temperature, strain, and strain rate. The FEM package DEFORM 2-D was used in this project. The performed simulation was verified by experimental tests performed on the laboratory rolling mill. Metallographic analysis yielded information on microstructure gradients in the deformed material. Certain percentage of recrystallized material was observed under different deformation conditions. The objective of the presented work is to link process parameters with the prediction of microstructure respond of the material.

Słowa kluczowe

EN

continuous dynamic recrystallization; geometric dynamic recrystalliation; numerical and physical modeling; 6061 aluminum alloy; grain size; state variables; rolling

• Wydawca: Wydawnictwa AGH
• Czasopismo: Computer Methods in Materials Science
• Rocznik: 2007
• Tom: Vol. 7, No. 1
• Strony: 11--16
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

De Pari Jr. L.

autor

Misiolek W.

• Institute for Metal Forming, Leigh University, Bethlehem, PA, USA

Bibliografia

• Bandar, A.R., 2005, Modeling Microstructure Evolution in the Dead-Metal Zone of Indirectly Extruded 6061 Aluminum, PhD Thesis, Lehigh University, Bethlehem.
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• Gourdet, S., Montheillet, F., 2003, A model of continuous dynamic recrystallization, Acta Mat., 51, 2685-2699.
• Humphreys, F., 1997, A unified theory of recovery, recrystallization and grain growth, based on the stability and growth of cellular microstructures - I. The Basic Model, Acta Mat., 45, 4231-4240.
• Humphreys, F., 1997, A unified theory of recovery, recrystallization and grain growth, based on the stability and growth of cellular microstructures - II. The effect of second-phase particles, Acta Mat. 45, 5031-5039.
• Humphreys, F., Hatherly, M., 2004, Recrystallization and Related Annealing Phenomena, Elsevier Ltd., Oxford.
• Hurley, N., 2005, Microstructural evolution duringflash anne-aling of hot rolled 6061 aluminum alloys, M.S. Thesis, Lehigh University, Bethlehem.
• Nes, E., Marthinsen, K., 2002, Modeling the evolution in microstructure and properties during plastic deformation of f.c.c.-metals and alloys - an approach towards a unified model, Mat. Sci. Eng. A, 322, 176-193.
• Nes, E., Marthinsen, K., Ronning, B., 2001, Modeling the evolution in microstructure and properties during processing of aluminum alloys, Mat. Proc. Tech., 117, 333-340.
• Pettersen, T., Holmedal, B., Nes, E., 2003, Microstructure development during hot deformation of aluminum to large strains, Metall. Mat. Trans. A, 34A, 2737-2744A.
• Pettersen, T., Nes, E., 2003, On the origin of strain softening during deformation of aluminum in torsion to large strains, Metali. Mat. Trans. A, 34A, 2727-2736A.
• Suni, J., Weiland, H., Shuey, R., 2002, Using evolutionary size distributions to model recrystallization in hot rolled, commercial purity aluminum alloys, Mat. Sci. For., 408-412,359-364.
• Van Geertruyden, W., Misiolek, W., Wang, P., 2006, Grain structure evolution in a 6061 aluminum alloy during hot torsion, Mat. Sci. Eng. A, 419, 105-114.