Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.663-664
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- 2006
Tribological Properties of Ti(C,N)-based Cermet after Hot Isostatic Pressing at High Nitrogen Pressure
- Xiong, Wei-hao (State Key Laboratory of Die & Mould Technology, Huazhong University of Science and Technology) ;
- Zheng, Li-yun (State Key Laboratory of Die & Mould Technology, Huazhong University of Science and Technology) ;
- Yan, Xian-mei (State Key Laboratory of Die & Mould Technology, Huazhong University of Science and Technology)
- Published : 2006.09.24
Abstract
Sintered Ti(C,N)-based cermets were treated with hot isostatic pressing (HIP) at different nitrogen pressures. The tribological properties of the treated cermets have been evaluated. The results show that a hard near-surface area rich in TiN formed after HIP treatment. The cermets treated at higher pressure had a relatively lower friction coefficient and specific wear rate. In all cases the microhardness of treated cermets is higher than that without HIP natridation. The wear mechanisms of cermets were hard particle flaking-off and ploughing. It was also found that the HIP natridation is well-suited for improving the tribological properties of cermets.