Abstract
A quasi-continuous Mg2Si layer is formed in situ at the magnesium/aluminum interface of bimetallic castings, by selecting a Si-containing aluminum alloy and overcasting process control. This effectively inhibits the formation of brittle intermetallic compounds (Al3Mg2, Al12Mg17) during the casting process, and the mechanisms are discussed based on phase diagram calculations and experimental validation. It is, thus, recommended to select Si-containing Al alloys as substrate for Mg/Al bimetallic castings.
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Schedule a callMore From: Metallurgical transactions. A, Physical metallurgy and materials science
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