The vacuum brazing of dissimilar Al 7075 and Al–25 Si alloy was investigated. filler copper foil with a thickness 20 μm, the temperature 560 °C held for 10 min. average shear strength brazed joint 26.4 MPa. layer found to be dissolved completely, interface had an irregular shape serrated border, indicating good metallurgical bonding between two alloys. However, factors which might cause deterio...

Vibration was adopted to enhance the interface bonding of Mg–Al bimetal prepared by lost foam compound casting (LFCC) technique. The bimetallic composed three layers: layer I (Al3Mg2 and Mg2Si phases), II (Al12Mg17 III + δ-Mg eutectic structure). With increase in vibration acceleration, cooling rate increased, resulting decrease reaction duration that generates intermetallic compounds (IMCs) (i...