Abstract
This chapter provides an overview of a range of new aluminium alloy compositions for high-pressure die casting and permanent mould casting that contain strontium (Sr) to impart enhanced processability and mechanical properties. The Sr works to reduce or eliminate die soldering in high-pressure die-cast alloys, such as 367, 368, B360, and F380. Similarly, Sr is advantageous in the preparation of permanent mould castings because the coating on the moulds is not adversely influenced by the molten metal. The findings suggest the coating may be able to be eliminated altogether.
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