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Edge Effects in Sliding Wear Behavior of ZrO2-WC Composites and WC-Co Cemented Carbides

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Abstract:

A trend in the development of WC based cemented carbides and zirconia based ceramic composites is grain size refinement and more narrow grain size distributions of the starting powder, in order to accomplish higher hardness and abrasive wear resistance. The current work reports the results of dry sliding wear experiments on laboratory-made electrically conductive ZrO2-WC composites and commercially available WC-Co based cemented carbides, which have been manufactured and finished by rough cutting wire EDM with consecutive execution of gradually finer EDM regimes. Tribological data are obtained using a small-scale pin-on-plate test rig. Wear tracks are analyzed by surface scanning topography and scanning electron microscopy, revealing that the outer extensions of the wear tracks exhibit some differences in wear behavior compared to the central parts.

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Periodical:

Materials Science Forum (Volumes 561-565)

Pages:

503-506

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.561-565.503

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Online since:

October 2007

Authors:

Koenraad Bonny, Patrick de Baets, Omer Van der Biest, Jef Vleugels, Bert Lauwers

Keywords:

Cemented Carbide, Dry Reciprocating Sliding, Edge, Pin on Plate, Zirconia Composite

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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