Investigación sobre fusión de contacto en materiales compuestos laminados Cu/Al

Dmitry V. Pronichev; Leonid M. Gurevich; Yury P. Trykov; Mikhail D. Trunov

doi:10.3989/revmetalm.079

Authors

Dmitry V. Pronichev Volgograd State Technical University, Materials Science and Composite Materials
Leonid M. Gurevich Volgograd State Technical University, Materials Science and Composite Materials
Yury P. Trykov Volgograd State Technical University, Materials Science and Composite Materials
Mikhail D. Trunov Volgograd State Technical University, Materials Science and Composite Materials

DOI:

https://doi.org/10.3989/revmetalm.079

Keywords:

Al, Contact melting, Cu, Electrical conductivity, Explosion welding, Intermetallics

Abstract

The study presents investigation of chemical composition, microhardness and electrical conductivity of Cu/Al laminated metal composite after heat treatment at temperatures higher than Cu–Al eutectic melting point. The Cu/Al bimetal was obtained via explosion welding. Chemical composition of the material after heat treatments was identified using EDS analysis. Eddy current testing was applied to investigate electrical conductivity of the composite’s components. Strain-hardened zones were identified in the explosion welded composite. The experimental value of electrical conductivity of explosion welded composite was in good coherence with calculated by additivity rule results. Heat treatments resulted in the formation of multiple interlayers which had high microhardness value and had intermetallics in composition. The electrical conductivity of the identified interlayers was significantly lower than of Cu and Al.

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