Research on Morphology and Phase Structure of Al/Cu Interfaces Formed by Explosive Cladding
The morphology and phase structure of Al/Cu explosive compounded interface were observed by scanning electron microscope, high-resolution transmission electron microscope and X-ray energy spectrometer. The results reveal that the interface of Al/Cu appears wave-like structure, with an average wavelength of 1.0mm and crest height of 0.3mm. Every wave has its front-nest. The wavelike interfaces are composed of microcrystal compound layer, non-crystal and nanocrystal. Several kinds of compounds such as Al9Cul2, Al4Cu9, Al2Cu, η-AlCu, β-AlCu3 and unidentified phase structure were found in Al/Cu interface. There are some bent lattice fringes around the front-nest. The research of microstructure in anchoring area revealed the nature of explosive cladding in metallurgical anchoring.
Wei Pan and Jianghong Gong
Y. Li et al., "Research on Morphology and Phase Structure of Al/Cu Interfaces Formed by Explosive Cladding", Key Engineering Materials, Vols. 336-338, pp. 2569-2571, 2007