Microstructure and Mechanical Properties of Ti/Cu Clads Manufactured by Explosive Bonding at Different Stand-Off Distances

Abstract:

In this study, unalloyed titanium (Gr.1) and deoxidized high phosphorus copper plates were joined through explosive welding process. Different stand-off distances were used to investigate their influence on the microstructure and mechanical properties of the clad fabricated at the same amount of explosive charge. Microstructures near-the-interface were examined with the use of scanning electron microscope equipped with energy dispersive X-ray spectrometer and then microhardness measurements were carried out on the clad. Microstructure examinations showed that with increasing stand-off distance the length and amplitude of the waviness and the quantity of melted zones in areas near-the-interface increase. The inclusions of the melted zones are formed behind the wave crests on titanium side or within the wave vortex. Microhardness measurements indicate a significant increase of both plates microhardness, especially near-the-interface.

• Periodical: Key Engineering Materials (Volume 716)
• Pages: 464-471
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.716.464
• Online since: October 2016
• Authors: Wojciech Skuza*, Henryk Paul, Katarzyna Berent, M. Prażmowski, Piotr Bobrowski
• Keywords: Copper Clad, Explosive Bonding, Interfaces, Microhardness, Scanning Electron Microscopy, Titanium Clad

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