Substrate finishing and niobium content effects on the high temperature corrosion resistance in steam atmosphere of CrN/NbN superlattice coatings deposited by PVD-HIPIMS

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, 1-13. (In Press)

[img] PDF
Substrate Finishing and Niobium Content Effects on the High Temperature Corrosion-SHURA.pdf - Accepted Version
Restricted to Repository staff only until 3 January 2018.
Available under License All rights reserved.

Download (2MB)
Official URL: http://link.springer.com/article/10.1007/s11085-01...
Link to published version:: 10.1007/s11085-016-9701-5

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: Materials and Engineering Research Institute > Thin Films Research Centre > Nanotechnology Centre for PVD Research
Identification Number: 10.1007/s11085-016-9701-5
Depositing User: Yashodhan Purandare
Date Deposited: 10 Jan 2017 12:19
Last Modified: 14 Jun 2017 23:37
URI: http://shura.shu.ac.uk/id/eprint/14580

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics