Effects of plasma nitriding interlayer on adhesion and tribological behaviors of AlTiSiN coating
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 16 August 2021
Issue publication date: 9 September 2021
Abstract
Purpose
This study aims to the service life of TA15 alloy by solving the problem of the binding force between the matrix and AlTiSiN coating. The effect of a plasma nitriding (PN) interlayer on the magnetron-sputtered AlTiSiN coating was also investigated in detail.
Design/methodology/approach
The double-glow plasma alloying (DGPA) and magnetron sputtering (MS) techniques were combined as a new approach to realize a bilayer on TA15 consisting of an AlTiSiN layer with a PN interlayer. A TiN interlayer was formed via co-diffusion during the PN conducted at 1050°C for 3 h.
Findings
The PN interlayer can effectively improve the adhesion between coating and matrix; the PN/AlTiSiN coating presented excellent adhesion (80.1 N) and anti-wear property with a nano-hardness of 18.62 GPa. The resulting three-dimensional wear-track morphology exhibited a shallow depth and a narrow width.
Originality/value
The novel combination of the DGPA and MS technologies, using an infiltration layer rather than a coating one as the intermediate layer, can effectively enhance the adhesion between AlTiSiN coating and TA15 matrix. Meanwhile, the gradient layer can effectively improve both surface bearing and wear resistance.
Keywords
Acknowledgements
This work was supported by the National Nature Science Foundation of China (Grant No 51874185).
Declaration of competing interest: The authors declare that they have no conflict of interest.
Citation
Yin, M., Liang, W., Miao, Q., Zuo, S., Yu, H. and Cheng, J. (2021), "Effects of plasma nitriding interlayer on adhesion and tribological behaviors of AlTiSiN coating", Industrial Lubrication and Tribology, Vol. 73 No. 6, pp. 945-953. https://doi.org/10.1108/ILT-04-2021-0116
Publisher
:Emerald Publishing Limited
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