Structure, Morphology, and Mechanical Properties of AlCrN Coatings Deposited by Cathodic Arc Evaporation

Gilewicz, A.; Jędrzejewski, Roman; Myśliński, P.; Warcholiński, B.

doi:10.1007/s11665-019-03934-2

Cited by 44 publications

(24 citation statements)

References 55 publications

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“…In terms of the adhesion of the DLC film, both the ground and the textured substrates resulted in coatings that were classified as HF3 (acceptable failure). Moreover, circumferential cracks were observed for the ground substrate (Figure 8b) near the indentation region due to the action of tensile stresses in the region caused by the pile-up of the substrate (deformation), as discussed by Souza et al [45], and more recently confirmed by Gilewicz et al [46].…”

Section: Discussionsupporting

confidence: 62%

Combined Use of Surface Texturing, Plasma Nitriding and DLC Coating on Tool Steel

et al. 2021

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In cold rolling, a textured roll can be used to imprint a desired surface topography onto the sheet during rolling. This work proposes the use of diamond-like carbon (DLC) coatings to protect the surface topography of the rolls in replacement of the carcinogenic hard chrome. For that, hydrogenated amorphous carbon (a-C:H) was deposited on plasma nitrided tool steel, both for ground and textured specimens. Changes in surface topography due to DLC coating were assessed using a confocal microscope. Coating adhesion was evaluated using the method VDI 3198. The specimens were characterized using X-ray diffraction (XRD), microhardness test and scanning electron microscopy (SEM). The coating was characterized using Raman spectroscopy (RS) and X-ray photoelectron spectroscopy (XPS). The results showed a soft multilayer coating consisting of a plasma nitrided layer for load support, a Si-rich interlayer to improve adhesion and an a-C:H top layer. DLC deposition reduced the roughness of the textured specimens. The coating resulted in relatively stable friction and good durability, with small damage and negligible wear even under dry sliding.

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Section: Discussionsupporting

confidence: 62%

Combined Use of Surface Texturing, Plasma Nitriding and DLC Coating on Tool Steel

et al. 2021

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“…The coatings with the hexagonal structure are characterized by poor thermal stability and wear resistance compared to the coatings with cubic structure [7]. Nevertheless, the investigations performed on the coatings synthesized from cathode with very high Al concentration, Al80Cr20, at atmosphere of nitrogen in wide pressure range 1 -5 Pa, indicate that wear resistance is comparable to cubic AlCrN [8].…”

Section: Introductionmentioning

confidence: 99%

Influence of Substrate Bias Voltage on Structure, Morphology and Mechanical Properties of AlCrN Coatings Synthesized Using Cathodic Arc Evaporation

Gilewicz¹,

Jędrzejewski²,

Myśliński³

et al. 2019

Tribol. Ind.

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AlCrN is one of the most widely studied hard coatings, especially if it is about their thermal resistance and mechanical properties. However, adhesion and wear resistance of AlCrN coatings synthesized from an cathode has not been studied yet. The influence of substrate bias voltage on the properties of coatings formed by cathodic arc evaporation was investigated. The morphology, phase and chemical composition, hardness, adhesion as well as wear of the coatings were analyzed by XRD, EDX, SEM, nanoindenter, scratch and ball-on-disc testers. It was found that as the negative substrate bias voltage (UB) increased, the rate of deposition and the macroparticle number on the surface of the coating decreased, mainly due to the resputtering phenomenon. X-ray diffraction showed that the intensity of h-AlN diffraction lines decreases and the intensity of the cubic CrN diffraction lines increases with the increase of the negative substrate bias voltage. The hardness of the coatings increases and crit ical load Lc2 decreases with negative substrate bias voltage. The lowest wear rate, about 1.1×10 -16 m 3 /Nm, was observed for coating deposited at bias of -100 V.

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“…Surface morphology, and in particular the density of macroparticles in arc deposition processes, can be influenced by the deposition pressure where fewer macroparticles are generated and smoother coatings are obtained at higher pressure [90][91][92], see also the example in Figure 17. This effect can be rationalised through a higher degree of poisoning on the target surface at an elevated pressure.…”

Section: Control Of Coating Morphology Stress and Texturementioning

confidence: 99%

“…Dual-phase coatings with Al concentrations of more than 70 at.% have been reported as monolayer coatings [88,90,94,95], as well as multilayers [66,96]. The coatings are characterised by relatively low hardness compared with fcc (Al,Cr)N, lower oxidation resistance than fcc (Al,Cr)N with a high Al content, but also with the positive effect of exhibiting lower stress.…”

Section: Features Of (Alcr)n Coatings With Mixed Fcc Plus Hcp Structurementioning

confidence: 99%

Quo Vadis: AlCr-Based Coatings in Industrial Applications

et al. 2021

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AlCr-based hard nitride coatings with different chemical compositions and architectures have been successfully developed and applied over the last few decades. Coating properties are mainly influenced by deposition conditions and the Al/Cr content. The fcc structure is dominant for an Al-content up to Al0.7Cr0.3N and is preferred for most cutting applications. Different (AlCrX)N alloying concepts, including X = Si, W, B, V, have been investigated in order to enhance oxidation resistance and wear behaviour and to provide tribological properties. AlCr-based oxynitrides and even pure oxides (Al1−xCrx)2O3 with different crystalline structures have been explored. Multi- and nanolayered coatings within the AlCr materials system, as well as in combination with (TiSi)N, for example, have also been implemented industrially. The dominant deposition technology is the vacuum arc process. Recently, advanced high-power impulse magnetron sputtering (HiPIMS) processes have also been successfully applied on an industrial scale. This paper describes basic coating properties and briefly addresses the main aspects of the coating processes as well as selected industrial applications.

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Structure, Morphology, and Mechanical Properties of AlCrN Coatings Deposited by Cathodic Arc Evaporation

Cited by 44 publications

References 55 publications

Combined Use of Surface Texturing, Plasma Nitriding and DLC Coating on Tool Steel

Combined Use of Surface Texturing, Plasma Nitriding and DLC Coating on Tool Steel

Influence of Substrate Bias Voltage on Structure, Morphology and Mechanical Properties of AlCrN Coatings Synthesized Using Cathodic Arc Evaporation

Quo Vadis: AlCr-Based Coatings in Industrial Applications

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