Abstract
Degradation process of Ti(C,N)-based cermet is investigated in solid–liquid erosion conditions. The results indicate that the erosion process of Ti(C,N)-based cermet is classified into incubation, development and prevalence. In the incubation stage, the weight loss is dominated by binder deterioration; in the development stage, ceramic phase and binder failure contribute to the material loss; and in the prevalence stage, ceramic fragments removal is responsible for the material loss. Impingement of Al2O3 particle results in ceramic phase deterioration, while in binder the degradation is caused by impingement and microcutting. Microcracks nucleate firstly at the interface and/or in the rim phase.
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