Ndlovu S, Durst K, Höppel HW, Göken M (2007)
Publication Type: Journal article
Publication year: 2007
Book Volume: 1049
Article Number: 1049-AA05-16
DOI: 10.1557/PROC-1049-AA05-16
The effect of the cobalt content and WC grain size on the deformation behaviour of WC-Co hard metals was investigated by studying materials with a varying WC grain size and cobalt content. The WC grain size ranged from 2.65 to 0.25 µm and the binder content ranged from 6 to 15 wt%. Single and multiple scratch tests were conducted using a Nano indenter with a Berkovich diamond tip and the load ranged from 5 to 500 mN with a tip sliding velocity of 10 µm/s. Several damage mechanisms were observed and these show a combination of ductile and brittle wear. The bulk properties i.e. composite properties of the hard metal determine the wear in the 6 wt% Co samples on the other hand the 15 wt% Co samples exhibited a localised response to the wear i.e. the wear is determined by the individual phases in the hard metal.
APA:
Ndlovu, S., Durst, K., Höppel, H.W., & Göken, M. (2007). Study on the local damage mechanisms in WC-Co hard metals during scratch testing. Materials Research Society Symposium - Proceedings, 1049. https://doi.org/10.1557/PROC-1049-AA05-16
MLA:
Ndlovu, Siphilisiwe, et al. "Study on the local damage mechanisms in WC-Co hard metals during scratch testing." Materials Research Society Symposium - Proceedings 1049 (2007).
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