FU Guanya, QIN Yanfang, ZHU Lingyan, HE Jining, JIAO Qi. Study on Microstructure and Properties of TiCN Composite Coatings Prepared by Reactive Plasma Spraying. Aeronautical Manufacturing Technology, 2019, 62(3): 55-61.
FU Guanya, QIN Yanfang, ZHU Lingyan, HE Jining, JIAO Qi. Study on Microstructure and Properties of TiCN Composite Coatings Prepared by Reactive Plasma Spraying. Aeronautical Manufacturing Technology, 2019, 62(3): 55-61. DOI: 10.16080/j.issn1671–833x.2019.03.055.
Study on Microstructure and Properties of TiCN Composite Coatings Prepared by Reactive Plasma Spraying
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 TiC
0.7
N
0.3
and TiN with some amount of amorphous graphite and CN
x
phase. There are some Ti
2
O 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 w
as obtained. The microhardness value of coating still exceeds 1000HV
0.2
which is higher than that of substrate and bond coat. Due to the H
3
/E
2
of coating is greater than 0.1
it indicated that TiCN coating possessed a high resistance of plastic deformation and excellent wear resistance.