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Effect of C2H2/N2 partial pressure ratio on microstructure and mechanical properties of Ti-Al-Si-C-N coatings
Gu JB1; Li LL1; Miao H1; Xu Y(许亿)2; Xu Y1; Sun JF1; Wang XL3; He ZH3
Source PublicationSurface and coatings technology
2019-05-15
Volume365Pages:200-207
Abstract

Ti-Al-Si-C-N nanocomposite coatings were deposited on cemented carbide (WC-10 wt%, Co) substrates by reactive magnetron sputtering technique. The effect of C2H2/N2 partial pressure ratio on element concentration, deposition rate, microstructure, cross-sectional morphology, hardness and tribological properties of the coatings were studied. The coatings were found to have a nanocomposite structure consisting of nanocrystallities (Ti,Al)(C,N) and amorphous phase. The coating's columnar crystals structure was restrained with the increase of C2H2/N2partial pressure ratio. The deposition rates and nanohardness of coatings firstly increased with the increase of C2H2/N2 partial pressure ratio and reached their maximum values of 133 nm/min and 35 Gpa, respectively, at C2H2/N2 partial pressure ratio of 1:2 before decreasing. The friction coefficient and wear rates of Ti-Al-Si-C-N coatings dramatically decreased with the increase of C2H2/N2 partial pressure ratio and reached the lowest value of 0.17 and 1.1 × 10–6 mm3/Nm, respectively, at C2H2/N2 partial pressure ratio of 1:1.

DOI10.1016/j.surfcoat.2018.06.035
Indexed BySCI ; EI
Language英语
Classification一类
Ranking4
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79711
Collection先进制造工艺力学重点实验室
Affiliation1.Beihang University
2.Institute of Mechanics, Chinese Academy of Sciences
3.Aerospace Research Institute of Materials and Processing Technology
Recommended Citation
GB/T 7714
Gu JB,Li LL,Miao H,et al. Effect of C2H2/N2 partial pressure ratio on microstructure and mechanical properties of Ti-Al-Si-C-N coatings[J]. Surface and coatings technology,2019,365:200-207.
APA Gu JB.,Li LL.,Miao H.,Xu Y.,Xu Y.,...&He ZH.(2019).Effect of C2H2/N2 partial pressure ratio on microstructure and mechanical properties of Ti-Al-Si-C-N coatings.Surface and coatings technology,365,200-207.
MLA Gu JB,et al."Effect of C2H2/N2 partial pressure ratio on microstructure and mechanical properties of Ti-Al-Si-C-N coatings".Surface and coatings technology 365(2019):200-207.
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