CrN/AlN and CrN/AlN/Al2O3 coatings deposited by pulsed cathodic arc for aluminum die casting applications

Bobzin, Kirsten; Brögelmann, Tobias; Brugnara, Ricardo H.; Kruppe, N.C.

doi:10.1016/j.surfcoat.2015.07.074

Cited by 30 publications

(15 citation statements)

References 22 publications

(24 reference statements)

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“…Binary and ternary metal nitrides, such as CrN and (Cr,Al)N deposited by physical vapor deposition (PVD) have been investigated as protective coatings for different technical applications . During their application on the surface of tools for plastic processing, these coating materials are subjected to several normal or lateral loads, for example, by hard fillers existing in the plastic melts .…”

Section: Introductionmentioning

confidence: 99%

Investigations on Mechanical and Tribological Behavior of dcMS/HPPMS CrN and (Cr,Al)N Hard Coatings Using Nanoscratch Technique

et al. 2017

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In this paper, interfacial adhesion strength and tribological behavior of systems, consisting of CrN and (Cr,Al)N coatings and AISI 420 steel substrate are investigated. The coatings are deposited using a hybrid technology consisting of direct current and high power pulse magnetron sputtering dcMS/HPPMS. Conventional Rockwell and scratch tests as well as nanoscratch analyses are performed. For the nanoscratch tests, a Berkovich and a conical indenters are used. Damage mechanisms are analyzed using Scanning Electron Microscopy (SEM) and explained by the plastic work from the nanoindentation tests. Investigations show a stronger interfacial adhesion strength and a higher abrasion resistance of the system AISI 420/(Cr,Al)N compared to the AISI 420/CrN.

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Section: Introductionmentioning

confidence: 99%

Investigations on Mechanical and Tribological Behavior of dcMS/HPPMS CrN and (Cr,Al)N Hard Coatings Using Nanoscratch Technique

et al. 2017

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“…Figure 9 shows numerous chippings of the coatings at the border of the sliding indenter, which can be related to cracks formed during indenter penetration and plastic deformation of the substrate. The lightest areas within the scratches are attributed to the mashed aluminum microdroplets formed as a result of cathodic arc evaporation [27,43]. A partial removing of the coating at 26 N applied load is observed only exclusively for the Ti-Al-N coating deposited at the arc current 70 A (Figure 9a).…”

Section: The Mechanical and Tribological Propertiesmentioning

confidence: 99%

“…The coating thickness increases with the arc current. The decrease in coating thickness during the wear process leads to a reduction of the combined hardness and the load-bearing capability of the coatings declines [43][44][45]. Most existing wear data for Ti-Al-N coatings are presented for (111) oriented coatings since it is the general growth direction produced by cathodic arc deposition with dc bias.…”

Section: The Mechanical and Tribological Propertiesmentioning

confidence: 99%

The Formation of Composite Ti-Al-N Coatings Using Filtered Vacuum Arc Deposition with Separate Cathodes

Шулепов

Kashkarov

Stepanov

et al. 2017

Metals

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Ti-Al-N coatings were deposited on high-speed steel substrates by filtered vacuum arc deposition (FVAD) during evaporation of aluminum and titanium cathodes. Distribution of elements, phase composition, and mechanical properties of Ti-Al-N coatings were investigated using Auger electron spectroscopy (AES), X-ray diffraction (XRD), transmission electron microscopy (TEM) and nanoindentation, respectively. Additionally, tribological tests and scratch tests of the coatings were performed. The stoichiometry of the coating changes from Ti 0.6 Al 0.4 N to Ti 0.48 Al 0.52 N with increasing aluminum arc current from 70 A to 90 A, respectively. XRD and TEM showed only face-centered cubic Ti-Al-N phase with preferred orientation of the crystallites in (220) direction with respect to the sample normal and without precipitates of AlN or intermetallics inside the coatings. Incorporation of Al into the TiN lattice caused shifting of the (220) reflex to a higher 2θ angle with increasing Al content. Low content and size of microdroplets were obtained using coaxial plasma filters, which provides good mechanical and tribological properties of the coatings. The highest value of microhardness (36 GPa) and the best wear-resistance were achieved for the coating with higher Al content, thus for Ti 0.48 Al 0.52 N. These coatings exhibit good adhesive properties up to 30 N load in the scratch tests.

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“…Previous studies have proposed methods to increase the corrosion resistance and operating life of cast. There are certain die materials with surface treatment technology, such as surface coating [6,14], surface alloying [7,15], and surface duplex treatments [16,17]. However, surface treatments are restricted to the surface coating uniformity, the thermal expansion properties, and the wettability similarity with substrate materials.…”

Section: Introductionmentioning

confidence: 99%

The Influence of A Mo Addition on the Interfacial Morphologies and Corrosion Resistances of Novel Fe-Cr-B Alloys Immersed in Molten Aluminum

Ling

Chen

et al. 2019

Materials

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The influence of a Mo addition on the interfacial morphologies and corrosion resistances of novel Fe-Cr-B alloys in molten aluminum at 750 °C was systematically investigated using scanning electron microscopy, X-ray diffractometer, electron probe microanalysis, and transmission electron microscopy. The results indicated that Mo could not only strengthen the matrix but also facilitate the formation of borides. Furthermore, the microstructures of Mo-rich M2B boride changed from a local eutectic net-like structure to a typical coarse dendritic structure and a blocky hypereutectic structure with increasing Mo addition. This was true of the blocky Mo-rich M2B boride, rod-like Cr-rich M2B boride and the corrosion products, which had a synergistic effect on retarding of the diffusion of molten aluminum. Notably, the corrosion resistance of the Fe-Cr-B-Mo alloy, with an 8.3 wt.% Mo addition, was 3.8 times higher than that of H13 steel.

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CrN/AlN and CrN/AlN/Al2O3 coatings deposited by pulsed cathodic arc for aluminum die casting applications

Cited by 30 publications

References 22 publications

Investigations on Mechanical and Tribological Behavior of dcMS/HPPMS CrN and (Cr,Al)N Hard Coatings Using Nanoscratch Technique

Investigations on Mechanical and Tribological Behavior of dcMS/HPPMS CrN and (Cr,Al)N Hard Coatings Using Nanoscratch Technique

The Formation of Composite Ti-Al-N Coatings Using Filtered Vacuum Arc Deposition with Separate Cathodes

The Influence of A Mo Addition on the Interfacial Morphologies and Corrosion Resistances of Novel Fe-Cr-B Alloys Immersed in Molten Aluminum

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