Effect of Multilayer Cr/CrN Coatings Deposited by Magnetron Sputtering on the Thermal Stability and High-Temperature Steam Oxidation Resistance of Zirconium Alloy E110
Muktanova N. Kamet M. Rakhadilov B.
December 2025Multidisciplinary Digital Publishing Institute (MDPI)
Applied Sciences (Switzerland)
2025#15Issue 23
The effect of the multilayer structure of Cr/CrN coatings deposited by reactive magnetron sputtering on zirconium alloy E110 (Zr–1Nb) on their thermal stability and resistance to steam oxidation at 1100 °C was studied. Coatings with different numbers of alternating Cr and CrN sublayers (1, 2, 4, and 6) were fabricated using experimental methods of X-ray diffraction (XRD) and scanning electron microscopy with energy-dispersive analysis (SEM/EDS). It was shown that an increase in the number of alternating Cr and CrN sublayers leads to the preservation of the cubic phase of CrN, the formation of a dense structure, and a decrease in Cr–Zr interdiffusion. After testing, multilayer coatings retaining the internal structure and a sufficiently structurally dense Cr2O3 layer effectively ensured air penetration. The best thermal stability was demonstrated by a six-layer coating, ensuring minimal oxidation and preservation of the E110 substrate.
high-temperature steam oxidation , microstructure , multilayer coating , oxide , phase composition , single layer coating
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PlasmaScience LLP, Ust-Kamenogorsk, 070018, Kazakhstan
LLP Institute of Materials Science and Metallurgy, Ust-Kamenogorsk, 070018, Kazakhstan
School of Sciences and Humanities, Nazarbayev University, Astana, 010000, Kazakhstan
PlasmaScience LLP
LLP Institute of Materials Science and Metallurgy
School of Sciences and Humanities
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