Structure and Properties of Wear-Resistant Nanostructured Coatings Based on W, Cr and N
| Authors | Т.P. Hovorun, K.S. Khaniukov , В.O. Varakin , D.V. Pakhnenko, O.V. Pylypenko , О.A. Bilous |
| Affiliations |
Sumy State University, 40007 Sumy, Ukraine |
| Е-mail | hovorun@pmtkm.sumdu.edu.ua |
| Issue | Volume 16, Year 2024, Number 2 |
| Dates | Received 15 December 2023; revised manuscript received 17 April 2024; published online 29 April 2024 |
| Citation | Т.P. Hovorun, K.S. Khaniukov, et al., J. Nano- Electron. Phys. 16 No 2, 02026 (2024) |
| DOI | https://doi.org/10.21272/jnep.16(2).02026 |
| PACS Number(s) | 61.46. – w, 62.20.Qp, 62.20. – х, 68.55Nq |
| Keywords | Nanostructured coatings, Microhardness (2) , Surface strengthening. |
| Annotation |
The effect on the structural phase state and mechanical properties of the composition of the parameters of obtaining nanocomposite and nanolayer wear-resistant coatings based on Cr, W, and N, obtained by the method of magnetron sputtering was investigated in this work. CrWN nanocomposite coatings were precipitated by the magnetron method with DCMS permanent magnets from a complex target consisting of Cr and W with different ratios of components by area. Electron microscopic studies of the obtained CrWN coatings showed a nanocrystalline finely dispersed structure with a grain size of up to 30 nm. From the analysis of the elemental composition of the coatings, a clear correlation can be observed between the composition of the target and the composition of the resulting coating. For CrN/WN nanolayer coatings, two metal targets of pure Cr and W were used, and coatings of chromium nitride and tungsten nitride were applied sequentially by magnetron sputtering. A dense and smooth microstructure of multilayer coatings was obtained. The presence of a nanolayer structure was confirmed and the sequential change of CrN and WN layers was shown. Smooth and clear interfaces between the CrN and WN layers were observed, indicating a dense and well-packed configuration of the multilayer coating. The CrN/WN nanolayer coatings showed a high hardness of about 30 GPa, which was higher than that of the CrWN nanocomposite coating, where the hardness was about 23 GPa. |
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List of References |
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