Oxidation-abrasion of TiC-based cermets in SiC medium

The aim of the current study was to investigate the effect of oxidation on abrasive wear behaviour of TiC based cermets at temperatures ranging from 20 to 900 °C. Three types of material performance maps were constructed: oxidation rate maps, wear rate maps and maps showing the effect of oxidation on abrasion. Discussion on the performance of different cermet grades is supported by the SEM images combined with EDS and XRD analysis. The results should facilitate the selection of TiC-based cermets providing optimum composition of cermets for high temperature applications.

► Methodology for studying of oxidation-abrasion is proposed. ► No positive effect of further molybdenum concentration increase in the precursor powder on wear performance of TiC-(Ti, Mo)C-Ni cermet was observed. ► Abrasion can have positive effect on formation of oxide layer at high temperature.