Formation of self-lubricant surface layer on the Ti(C, N)-based cermets. (September 2017)

• Record Type: Journal Article
• Authors: Liu, Junbo; Ye, Junliu; Xiong, Ji; Guo, Zhixing; Yang, Tian'en; Wan, Weicai; Liu, Qiao
• Is Part Of: Vacuum. Volume 143(2017)
• Page Start: 225
• Page End: 228
• Publication Date: 2017-09
• Subjects: Ti (C, N)-based cermets -- Self-lubricant surface -- Graphite -- Carburization; Vacuum -- Periodicals; 621.55
• DOI: 10.1016/j.vacuum.2017.06.024
• Languages: English
• ISSNs: 0042-207X

Abstract

Abstract: In the present work, Ti(C, N)-based cermets with self-lubricant surface layer were prepared via vacuum liquid sintering and subsequent solid-phase carburization. A surface layer enriched in graphite phase, but deficient in Ni binder phase was achieved by solid-phase carburization at 1440 °C for 40 mins. The thickness of the surface layer was approximate 1400 μm. The tribological properties of cermets was enhanced obviously due to the self-lubricant surface layer without deterioration of the transverse rupture strength. Highlights: Ti(C, N)-based cermets with self-lubricant surface layer were prepared. The surface layer was enriched in graphite phase, but deficient in Ni phase. The tribological properties of cermets with the surface layer was enhanced.