Etude des Traitements de Surface Avant Collage des Alliages Legers (Study of Surface Treatment Before Bonding of Light Alloys)

摘要

The mechanical behavior of aluminum alloy bonded junctions such as those employed in aircraft structures was related to previous surface treatment. The treatment consists of phosphoric medium anodizing. The effects of time, heat, and moisture were studied, showing that 48 hr in dry atmosphere does not affect bonding characteristics, while a hot and humid medium significantly affects the physical and chemical characteristics of the surface layer as well as the resulting mechanical properties of the bonded joints.