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Institute for Problems in Mechanical Engineering
of the Russian Academy of Sciences

Institute for Problems in Mechanical Engineering of the Russian Academy of Sciences

Effect of cobalt and tungsten carbide particles inclusions into the aluminium composite on the hardness and wear properties

Autors:
U.B. Gopal Krishna, B. Vasudeva, V. Auradi, M. Nagaral ,
Pages:
099-106
Annotation:

Using liquid metallurgy route, Al7075 composites comprising 6, 9, and 12 wt. % WC-Co were developed. When testing composites and Al7075, ASTM standards were followed. Increasing the vol. % of the cermet phase enhances the hardness of Al7075-WC-Co composites, according to the experimental data. The produced composites are analyzed using scanning electron microscopic images and energy dispersive microscopy technique before and after the wear. Improvement of 80.23 % on hardness of the composite are observed over the base alloy. For the composite containing 12 wt. % of WC-Co particulates the wear rate is less than the base alloy and other prepared composites.

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