Influence of Al on the microstructure and mechanical properties of Cr–Zr–(Al–)N coatings with low and high Zr content

Li, W.Z.; Evaristo, Manuel; Cavaleiro, A.

doi:10.1016/j.surfcoat.2012.03.035

Cited by 19 publications

(18 citation statements)

References 25 publications

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“…On another study, the same value of 800 o C was observed in high Al Zr-Al-N coating [8]. Till now, there are only a few studies about effects of Al on the mechanical properties of quaternary Zr-Cr-Al-N coatings [10]. In a previous publication, we reported that a columnar structure was typical in Zr-Cr-Al-N coatings [10].…”

Section: Accepted Manuscriptsupporting

confidence: 56%

“…Till now, there are only a few studies about effects of Al on the mechanical properties of quaternary Zr-Cr-Al-N coatings [10]. In a previous publication, we reported that a columnar structure was typical in Zr-Cr-Al-N coatings [10]. The hardness, Young's modulus, toughness and adhesive/cohesive strength of the coatings strongly depended on the Al content.…”

Section: Accepted Manuscriptmentioning

confidence: 90%

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Influence of Al content on the mechanical properties and thermal stability in protective and oxidation atmospheres of Zr–Cr–Al–N coatings

Liu

Evaristo

et al. 2013

Surface and Coatings Technology

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Tools have been used under very high temperature in recent decades. Therefore, coatings on tools are required to be thermally stable and excellent in oxidation-resistance. The introduction of Al into nitride coatings was considered as an effective way to improve the coating oxidation-resistance and thermal stability. Quaternary Zr-Cr-Al-N coatings were deposited with increasing Al contents by d.c. reactive magnetron sputtering. The coatings were annealed at 800 and 900 o C for 1h in Ar + H 2 atmosphere and exposed at 700 o C for 2h and 1200 o C for 1h in air, respectively. The hardness, Young's modulus, adhesive/cohesive strength and residual stress of as-deposited and annealed coatings were characterized by nanoindentation, scratch test and curvature measurement method. The results showed that the coating hardness and Young's

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Section: Accepted Manuscriptsupporting

confidence: 56%

Section: Accepted Manuscriptmentioning

confidence: 90%

Influence of Al content on the mechanical properties and thermal stability in protective and oxidation atmospheres of Zr–Cr–Al–N coatings

Liu

Evaristo

et al. 2013

Surface and Coatings Technology

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“…This is a clear indication of insufficient poisoning of the target with the consequent much higher sputtering yield of the metallic elements. Similar trends of chemical composition and deposition rate were studied in detail and interpreted in previous paper [12].…”

Section: Chemical Composition Deposition Rate and Microstructuressupporting

confidence: 72%

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

Chen

Polcar

et al. 2014

Applied Surface Science

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights Addition of Zr to sputtered Cr-Al-N coatings can change the N stoichiometry. Fcc (Cr, Zr)N phases in the low Zr coatings are stable up to 900 o C annealing. Zr decreases the onset oxidation temperature of Cr-Al-Zr-N coatings. Wear rate and friction coefficient increase significantly for the high Zr coatings.

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“…With the sputtering power increased, the plasma density of surface of the Al-Si target enhanced as the deposited atoms could achieve enough kinetic energy from high-energy ionization argon gas. Then, these atoms, carrying sufficient momentum, transferred to the surface of the substrate, and led to the formation of the nucleation and favored the growth of the films, which resulted in an enhancement of the overall thickness [28]. …”

Section: Composition and Deposition Ratementioning

confidence: 99%

Microstructure, Mechanical, Oxidation and Corrosion Properties of the Cr-Al-Si-N Coatings Deposited by a Hybrid Sputtering System

et al. 2017

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CrN and Cr-Al-Si-N coatings were deposited on SUS304 and Si-wafers by a hybrid coating system. The Cr and Al-Si target were connected to the cathode arc ion plating (AIP) and high power impulse magnetron sputtering (HiPIMS), respectively. Various Al and Si contents in the coatings were obtained by changing the power of Al-Si target from 0 to 1 kW. The results demonstrated a face-centered cubic structure in all of the coatings. With increasing Al-Si target power, both the density and mean diameter of the macroparticles on the coating surface declined. As Al and Si contents increased, the microstructure of the Cr-Al-Si-N coatings evolved from a dense column structure, to a finer grain column structure, and then to a compact granular-like structure. The hardness of the coatings increased from 21.5 GPa for the pure CrN coating, to a maximum value of~27 GPa for the Cr-Al-Si-N coating deposited at 0.4 kW, which was mainly attributed to the solid solution strengthening and increased residual stress. The addition of Al and Si contents led to enhanced wear resistance against alumina balls at both room and elevated temperatures. Meanwhile, the Cr-Al-Si-N coatings also exhibited an excellent resistance to high-temperature oxidation at 800 and 1000 • C, and improved corrosion resistance, as compared with CrN coatings.

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Influence of Al on the microstructure and mechanical properties of Cr–Zr–(Al–)N coatings with low and high Zr content

Cited by 19 publications

References 25 publications

Influence of Al content on the mechanical properties and thermal stability in protective and oxidation atmospheres of Zr–Cr–Al–N coatings

Influence of Al content on the mechanical properties and thermal stability in protective and oxidation atmospheres of Zr–Cr–Al–N coatings

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

Microstructure, Mechanical, Oxidation and Corrosion Properties of the Cr-Al-Si-N Coatings Deposited by a Hybrid Sputtering System

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