Degradation process of typical Ti(C,N)-MO2C-Ni cermet in slurry erosion conditions

作者：Wan Weicai; Xiong Ji^*; Guo Zhixing; Tang Limei; Du Hao

来源：Tribology International, 2014, 74: 138-144.

DOI：10.1016/j.triboint.2014.02.020

• Ti(C,N)-MO2C-Ni cermet
• Slurry erosion degradation
• Eroded morphology
• Surface composition analysis

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.

• 出版日期2014-6
• 单位四川大学