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Abstract

Diffusion bonding studies of hot rolled 7075 aluminium alloy have been carried out in vacuum on a Gleeble 1500 test machine over a range of temperatures, pressures, and times. A new surface treatment procedure was used in which the surfaces to be joined were coated with an organic solution immediately after the removal of surface oxides. Bond quality was asssessed using optical microscopy, tensile strength measurements, and scanning electron microscopy of the surfaces of the fractured tensile specimens. Bonds with parent metal strength and microstructure were obtained and the optimum bonding conditions were identified. The characteristics of the surface treatment method and the bonding mechanism are discussed

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Diffusion bonding of hot rolled 7075 aluminium alloy

Abstract

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