Abrasion and Erosion of WC-Co with Controlled Microstructures

The influence of microstructure on room-temperature abrasive and erosive wear resistance of selected WC-Co materials was examined. Cermets containing 6 and 12 w/o Co were processed under controlled conditions to produce materials with three WC grain sizes: fine-0.8 μm; medium-1.4 μm; or coarse-2.7 μ...

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Bibliographic Details
Published in:ASLE transactions 1990, Vol.33 (4), p.611-617
Main Authors: Wayne, S. F., Baldoni, J. G., Buljan, S.-T.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
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Summary:The influence of microstructure on room-temperature abrasive and erosive wear resistance of selected WC-Co materials was examined. Cermets containing 6 and 12 w/o Co were processed under controlled conditions to produce materials with three WC grain sizes: fine-0.8 μm; medium-1.4 μm; or coarse-2.7 μm. The hardness, fracture toughness and microstructural parameters of the resulting six grades were determined. Diamond abrasive wear tests showed that the wear resistance of these WC-Co materials to abrasion depends more strongly on the WC grain size than on the cobalt content, while the wear resistance to Al 2 O 3 -particle gas-jet erosion shows a strong dependence on the cobalt content and less on WC pain size. Presented at the 44th Annual Meeting in Atlanta, Georgia May 1-4, 1989
ISSN:1040-2004
0569-8197
1547-397X
DOI:10.1080/10402009008981996