Abstract
Reducing vehicle weight and emissions by lightweight design is a major goal of the automotive industry. Magnesium as the lightest structural metal offers a significant weight saving potential compared to steel and aluminum. Cast magnesium components are widely used, e.g. as engine blocks or gear box housings. The application of magnesium sheets is currently hampered by the low formability of magnesium which means that a large number of rolling passes is required to roll a DC cast slab to final gauge sheet. This large number of rolling steps is the main reason for the high cost of magnesium sheets. An alternative, cost-efficient production route for magnesium sheets with improved properties is feedstock production by twin roll casting (TRC). In this paper we report the results of twin roll casting experiments on the magnesium alloy AZ31 (Mg-3Al-lZn-Mn) and discuss the influence of the process on the micro structure and texture of the strips.
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