Publisher： Maney Publishing
ISSN： 1743-2847
Source： Materials Science and Technology, Vol.28, Iss.7, 2012-07, pp. : 769-772
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Abstract
The mechanical properties of aluminium alloys with non-equilibrium microstructures necessary for heat treatment simulation are not available. Therefore, compression tests of undercooled aluminium alloys such as AlSi1MgMn and AlZn4·5Mg1 have been performed in a quenching and deformation dilatometer with varying quenching rates and quenching finish temperatures. The compressive load on quenching finish temperature was applied immediately after quenching. The mechanical properties such as yield strength and strain hardening are strongly dependent on quenching rates and finish temperatures of quenching. Flow curves depending on quenching rates and quenching finish temperatures have been implemented in a quenching simulation by the finite element method. For the cooling process of extrusion profiles in water and in a gas nozzle field, the simulation results are presented.
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