RT Journal Article
T1 Insights into the role of the layer architecture of Cr–Ti–N based coatings in long-term high temperature oxidation experiments in steam atmosphere
A1 Mato Díaz, María Sonia
A1 Pérez Trujillo, Francisco Javier
A1 Alcalá Penadés, Germán
A1 Sánchez López, J.C.
A1 Barriga, J.
AB Knowledge on hard coatings has been applied in the energy field extending their use as protecting coatings of steam power generation plants components. The role of the layer architecture of Cr–Ti–N based coatings deposited by reactive cathodic arc evaporation on P92 steel substrates was studied with the focus on their oxidation resistance at 650 °C in 100% steam atmosphere up to 2000 h. Characterization of the coatings was performed by gravimetry, scanning electron microscopy, electron probe microanalysis, glow discharge optical emission spectroscopy, X-ray diffraction, thermodynamic simulations using the CALPHAD method, Rockwell C indentation and nanoindentation. The layered arrangement improves the oxidation resistance of TiN under the working conditions of steam power plants, as well as the mechanical properties of CrN. The produced architectures performance under the described working conditions boosts the understanding of the processes taking place at high temperature, making possible the design of optimal coatings combining the best behavior of both nitrides for each specific application, reaching a corrosion protection at high temperature in water vapor comparable to that of CrN and a hardness and Young's modulus as high as those of TiN.
PB ELSEVIER SCI LTD
YR 2020
FD 2020-10-01
LK https://hdl.handle.net/20.500.14352/126449
UL https://hdl.handle.net/20.500.14352/126449
LA eng
NO S. Mato, J.C. Sánchez-López, J. Barriga, F.J. Pérez, G. Alcalá, Insights into the role of the layer architecture of Cr–Ti–N based coatings in long-term high temperature oxidation experiments in steam atmosphere, Ceramics International, Volume 47, Issue 3, 2021, Pages 4257-4266, ISSN 0272-8842, https://doi.org/10.1016/j.ceramint.2020.10.003. (https://www.sciencedirect.com/science/article/pii/S0272884220330315)
NO European Regional Development Fund program
NO Spanish Ministry of Economy, Industry and Competitiveness
DS Docta Complutense
RD 24 dic 2025