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ILLANA, Andrea, MATO, Sonia, EHIASARIAN, Arutiun, PURANDARE, Yashodhan, LASANTA, Maria, MIGUEL, Maria, HOVSEPIAN, Papken and TRUJILLO, Francisco (2017). Substrate finishing and niobium content effects on the high temperature corrosion resistance in steam atmosphere of CrN/NbN superlattice coatings deposited by PVD-HIPIMS. Oxidation of Metals, 87 (3-4), 455-467.
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Substrate Finishing and Niobium Content Effects on the High Temperature Corrosion-SHURA.pdf - Accepted Version All rights reserved. Download (2MB) | Preview |
Abstract
The main objective of this work was to evaluate the oxidation resistance of three PVD-HIPIMS CrN/NbN coatings, studying the effect of the surface finishing of the substrate and the role of niobium content into the coating composition. CrN/NbN nano-multilayered films on P92 steel were tested at 650°C in pure steam atmosphere. The mass gain was measured at fixed intervals to study their oxidation kinetics. The morphology and thickness of nanoscales were measured by transmission electron microscopy (TEM). Characterization of coatings before and after the thermal treatment was performed by scanning electron microscopy-energy with facilities of dispersive X-ray spectroscopy (SEM–EDX) and X-ray diffraction (XRD). All coatings improved the oxidation resistance of the substrate material, but the best behaviour was exhibited by the CrN/NbN with the high niobium (Nb) content and deposited on the substrate with the finest surface finishing.
| Item Type: | Article |
|---|---|
| Research Institute, Centre or Group - Does NOT include content added after October 2018: | Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Nanotechnology Centre for PVD Research |
| Departments - Does NOT include content added after October 2018: | Faculty of Science, Technology and Arts > Department of Engineering and Mathematics |
| Identification Number: | https://doi.org/10.1007/s11085-016-9701-5 |
| Page Range: | 455-467 |
| Depositing User: | Yashodhan Purandare |
| Date Deposited: | 10 Jan 2017 12:19 |
| Last Modified: | 18 Mar 2021 00:55 |
| URI: | https://shura.shu.ac.uk/id/eprint/14580 |
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