Influence of Zr alloying on the mechanical properties, thermal stability and oxidation resistance of Cr–Al–N coatings

Abstract

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Influence of Cr additions on the structure and oxidation resistance of multilayered TiAlCrN films

“…The chemical composition of the coatings was accessed by energy dispersive spectroscopy (EDS). CrAlN and CrAlTiN films deposited in previous works of the research group [24,25], with the chemical composition measured by EPMA (Electron Probe Microanalysis), were used as references for the EDS analysis. Scanning electron microscopy (SEM) was used to examine the fracture cross section morphology and thickness of the films.…”

A First-Principles Study of Mechanical and Electronic Properties of Cr0.5-xAl0.5TMxN Hard Coatings (TM = Ti, V, Y, Zr, Hf, and Ta)

“…It makes CrAlN coatings limited in industrial applications. Recent studies have demonstrated that the incorporation of various elements such as Nb [ 6 ], Mo [ 7 ], Y [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ], Ni [ 22 ], Ta [ 23 , 24 ], Hf [ 25 ], V [ 5 , 21 , 26 , 27 , 28 , 29 ], Zr [ 13 , 15 , 30 , 31 ], Ti [ 21 , 32 , 33 , 34 , 35 ], Si [ 36 ], and B [ 37 ] can enhance the comprehensive properties of coatings. For example, alloying element with Y has been reported to enhance the thermal stability, mechanical properties, tribological performance, oxidation resistance, and corrosion resistance [ 6 , 9 , 13 , 19 , 20 ].…”

Effect of Substrate Bias on the Microstructure and Properties of Non-Equimolar (AlCrSiTiZr)N Films with Different Cr/Zr Ratios Deposited Using Reactive Direct Current Magnetron Sputtering

“…In addition, Cr can form a dense oxide that improves the oxidation resistance of nitride films, whereas Zr forms a porous oxide that may have the opposite effect [21,22]. Other studies have shown that with an increasing amount of Cr and a decreasing amount of Zr, the oxidation resistance of the nitride film could be significantly improved [23,24]. Therefore, we proceeded to increase the Cr content and decrease the Zr content to improve the high-temperature applicability of the film.…”