Abstract
The correlation between extrusion processing parameters and chemical compositions on the one hand and the grain structure and mechanical properties on the other hand is studied for an extruded AA6005A alloy. Alloys with different chemical compositions and billet homogenization treatments have been extruded under different processing parameters. Optical microscope observations as well as hardness tests show that a wide range of mechanical properties and microstructures can be obtained. The grain structure can vary from a fibrous, deformed microstructure to a fully recrystallized micro structure. In some cases a mixture of the two is observed. The effects of processing parameters and chemical composition on the grain structure is discussed and used to find the optimized combination of homogenization treatment, pre-heating temperature, cooling rate after deformation, and chemical composition, in order to obtain a homogeneous recrystallized grain microstructure and optimum mechanical strength.
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© 2016 The Minerals, Metals & Materials Society
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Bahrami, A., den Bakker, A.J., Miroux, A., Sietsma, J. (2016). Toward a Recrystallized Microstructure in Extruded AA6005A Alloy. In: Sadler, B.A. (eds) Light Metals 2013. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-65136-1_60
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DOI: https://doi.org/10.1007/978-3-319-65136-1_60
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-65135-4
Online ISBN: 978-3-319-65136-1
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