Abstract
The effects of magnesium alloy compositions on the interfacial microstructure, corrosion resistance and mechanical properties of explosively welded magnesium alloys and aluminum alloy were investigated. The bonding interface had a periodic wavy shape. Thin interlayer consists of intermetallic compound, γ-Mg17Al12 phase, was formed at the bonding interface in all samples. When the aluminum concentration in the magnesium alloy is low, the intermediate layer at the bonding interface is thin and intermittently formed, but when the aluminum concentration in the magnesium alloy was high, the intermediate layer was relatively thick and uniformly formed, resulting in high bonding strength. In all samples, brittle fracture surface was observed and the presence of γ-Mg17Al12 phase was confirmed on the fracture surfaces.
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