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| Study on Microstructure and Properties of TiCN Composite Coatings Prepared by Reactive Plasma Spraying |
| FU Guanya1,2, QIN Yanfang1,2, ZHU Lingyan1,2, HE Jining1,2, JIAO Qi1,2 |
1. School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China;
2. Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin 300130, China |
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Abstract The TiCN coating were successfully fabricated by reactive plasma spraying. The microstructure of coating was characterized by scanning electron micrograph (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The mechanical and tribological properties of coatings were evaluated by Vickers microhardness tests, nanoindentation tester and block-on-ring tribometer. Results showed that the main phases are TiC0.7 N0.3 and TiN with some amount of amorphous graphite and CNx phase. There are some Ti2O due to the plasm spraying carried out in atmosphere. The coating exhibits typical thermal spray spreading out morphology and a good bonding status between the coating and substrate was obtained. The microhardness value of coating still exceeds 1000HV0.2, which is higher than that of substrate and bond coat. Due to the H3/E2 of coating is greater than 0.1, it indicated that TiCN coating possessed a high resistance of plastic deformation and excellent wear resistance.
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| [1] |
. COVER[J]. Aeronautical Manufacturing Technology, 2022, 65(3): 1-1. |
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2019, 
