マグネシウム/アルミニウム合金爆発圧着材の界面組織，耐食性および機械的性質に及ぼすマグネシウム合金組成の影響

抄録

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.