Abrasive wear performance of carbide composites

This work focuses on the abrasive wear performance of some carbide composites, WC-hardmetals and TiC-base cermets (in particular, composites prospective for metalforming). Wear tests were performed using the dry rubber-rimmed rotary wheel machine (modified ASTM G 65-94 method). The results were compared with those, obtained in ordinary erosion tests related to the mechanical properties and the structure. It was shown, that the abrasive wear of a carbide composite is controlled by its rigidity (resistance to elastic and plastic strain) and depends firstly on fraction, grain size and properties of the carbide phase, and secondly on those of the binder.