Correlating Structure and Electrical Properties in Rotary Swaged Al/Cu Clad Composites

Abstract:

Thorough analyses were focused on characterization of deformation behaviour of the component metals, orientations of their structural units, and development of intermetallic phases on the interfaces within Cu/Al clad composites produced by rotary swaging at 20 °C and 250 °C. The shapes of the cross-sections of Al wires within the composites were affected by the increasing total imposed strain more at 250 °C, the 250 °C composites also exhibited formation of intermetallics at higher swaging degrees. Intermetallics decreased the electric conductivity, which was generally higher for 20 °C samples, however, the conductivity was also affected by the occurring deformation hardening/softening. The average microhardness of Cu exceeded 100 HV for all the samples.

• Periodical: Key Engineering Materials (Volume 865)
• Pages: 85-90
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.865.85
• Online since: September 2020
• Authors: Lenka Kunčická*, Radim Kocich
• Keywords: Composite Materials, Electrical Properties, Interfaces, Rotary Swaging

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