Abrasive wear of WC–FeAl composites

The abrasive wear behavior of tungsten-carbide iron-aluminide composite materials was investigated using a pin-on-drum wear-testing machine. Samples were prepared by uniaxially hot pressing blended powders. The wear rates of specimens containing 40 vol.% matrix of atomic composition, Fe 60Al 40, wer...

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Published in:Wear 2005-04, Vol.258 (9), p.1337-1341
Main Authors: Mosbah, A.Y., Wexler, D., Calka, A.
Format: Article
Language:English
Subjects:
Abrasive wear
Applied sciences
Composites
Exact sciences and technology
Friction, wear, lubrication
Machine components
Mechanical engineering. Machine design
WC–FeAl
Wear rate
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description The abrasive wear behavior of tungsten-carbide iron-aluminide composite materials was investigated using a pin-on-drum wear-testing machine. Samples were prepared by uniaxially hot pressing blended powders. The wear rates of specimens containing 40 vol.% matrix of atomic composition, Fe 60Al 40, were measured and results compared with those of conventional WC–10 vol.% Co hardmetal. They were found to be comparable to those of WC–10% Co hardmetal, when abraded by 120 μm SiC papers under identical conditions. The wear resistance of WC–Fe 60Al 40 composites increased with reduction in WC-grain size and associated with increase in composite hardness. Scanning electron microscopy revealed that the wear surfaces of WC–40% Fe 60Al 40 composites and WC–Co hardmetal were similar in appearance. The higher hardness and work hardening ability of Fe 60Al 40 binder, as compared to Co metal, are believed to be responsible for the excellent abrasive wear resistance of WC composites containing iron aluminide binder.
doi_str_mv 10.1016/j.wear.2004.09.061
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subjects Abrasive wear
Applied sciences
Composites
Exact sciences and technology
Friction, wear, lubrication
Machine components
Mechanical engineering. Machine design
WC–FeAl
Wear rate
title Abrasive wear of WC–FeAl composites
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