Weldability window and the effect of interface morphology on the properties of Al/Cu/Al laminated composites fabricated by explosive welding
Autor: | Behzad Tolaminejad, M.M. Hoseini Athar |
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Rok vydání: | 2015 |
Předmět: |
Heat-affected zone
Plastic welding Materials science Explosive material Bond strength Mechanical Engineering Metallurgy Weldability Welding Electric resistance welding law.invention Explosion welding Mechanics of Materials law lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science Composite material |
Zdroj: | Materials & Design, Vol 86, Iss, Pp 516-525 (2015) |
ISSN: | 0264-1275 |
DOI: | 10.1016/j.matdes.2015.07.114 |
Popis: | Explosive welding is one of the joining techniques which employs high energies derived from explosives to join materials with similar and dissimilar properties. In this paper, the weldability criteria which should be met to achieve good welds were calculated for aluminum–copper joints. Different morphologies for welding interface (straight, wavy and melted layer) were obtained with changing welding parameters. Results on the microstructure, micro-hardness and tensile-shear tests were reported. Tensile-shear test results indicate that shear bond strength increases with increasing explosive ratio. However, shear bond strength decreases when the explosive ratio exceeds R = 2.2 due to the formation of brittle intermetallics at the interface. This knowledge may be utilized for establishment of a relation between microstructure and properties in the process of manufacturing. Keywords: Explosive welding, Welding window, Al/Cu bimetal, Explosive ratio, Bond strength |
Databáze: | OpenAIRE |
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