Effect of Oxide Morphology on Bond Strength of Diffusion-Bonded Interfaces of Al-Alloys

摘要

The oxides at the diffusion-bonded interface of a pure aluminum and Al binary alloys(Al-Mg(0.6-2/100), Al-Si(1/100), Al-Mn(0.5/100), Al-Zn(1/100), and Al-Cu(1/100)) have been investigated by transmission electron microscopy in order to examine the effect of their morphologies on the bond strength of the joint interfaces. As the bonding temperature and Mg content were increased, the strength of the joint interfaces. As the bonding temperature and Mg levels not less than that of the base metals, and the interfacial oxide altered form continuous amorphous films to dispersed crystalline particles of Al_2MgO_4 and MgO.