Surface Coatings for Superior Gears

Kolk, G. van der; Strondl, C.; Tietema, R.; Lewis, Darrell; Hurkmans, T.; Hieke, André; Hutton, Eric

doi:10.4271/2004-01-0500

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…It is even worse for PVD-arc coatings, as pure metal droplets are introduced into the coating. Yet, coatings can be used to reduce the effect of surface roughness [9]. This fact is appreciable for the ground finish, where the roughness due to the ground lines of the bare steel decreased by applying coatings, gradually growing until filling the ground lines.…”

Section: Roughness Analysismentioning

confidence: 99%

Electrochemical Characterization of Multilayer Cr/CrN-Based Coatings

2014

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Abstract:In this work, a series of mono-and multilayer coatings were considered. They consisted of CrN and Cr prepared by physical vapor deposition with a cathodic arc. The most common steels for molds of plastics were chosen as substrates: X37CrMoV5-1 (SMV3), X2NiCoMo18-8-5 (MARVAL M1), X105CrCoMo18-2 (N690) and X40CrMo15 (X13T6). The samples were made with surface state conditions reproducing the main finishes required for molding of plastics: mirror, electro-eroded, sandblasted and ground finish. The coatings were characterized morphologically and chemically. The corrosion behavior of bare and coated steels was evaluated by electrochemical methods.

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Section: Roughness Analysismentioning

confidence: 99%

Electrochemical Characterization of Multilayer Cr/CrN-Based Coatings

2014

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“…Anfängliche Schwierigkeiten mit der Schichthaftung und zu hohen Abscheidetemperaturen wurden mittlerweile durch die Weiterentwicklung der Plasmaprozesse behoben. Aus Sicht der Industrie ist zu sagen [14]: "In den nächsten 10 Jahren werden sich die Bauteilbelastungen in jeglichen Maschinen und Anlagen weiter erhöhen. Beschichtungsysteme werden weiter optimiert.…”

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PVD – Eine Erfolgsgeschichte mit Zukunft

Bobzin

Bagcivan

Immich

et al. 2008

Materialwissenschaft Werkst

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Exemplarisch wird an einem Anwendungsbeispiel aus dem Sonderforschungsbereich (SFB) 442 "umweltverträgliche Tribosysteme" der RWTH Aachen die Umsetzung von Ergebnissen aus der Grundlagenforschung bis hin zur industriellen Anwendung vorgestellt und an der industriellen PVD-Marktentwicklung gespiegelt. In diesem Beispiel wird die Entwicklungsmethodik der Oberflächentechnik in der Prozesskette von der Fertigung bis zum Einsatztest des neuen Produktes dargestellt.Schlüsselworte: PVD (Physical Vapour Deposition), Oberfläche, Bauteilbeschichtung, Verschleißschutz, Reibminderung, PVD coatings in the range of a few nanometers up to some microns have become state of the art in engineering technology. PVD coatings can be found anywhere in our everday lives. They are used in data storage mediums such as CDs or DVDs. Car or architectural glasses are improved by thermal insulation coatings. A diffusion barrier is achieved via PVD coatings at food packaging. For decorative aspects sham jewelery and accessoires are coated as well as fittings.In the last three decades PVD coatings have been established in a variety of technical applications acquiring wear protection and/or friction reduction. First, coatings for tools have been developed, later on for components as well. So, in the past lots of experiences have been made not only in coating development, but likewise in methodical product design. By contrast, the surface has not yet been regarded as construction element. Here the knowledge is just at the beginning. The achieved performance of coated components can be improved drastically if the tribological system consisting of coating, substrate and intermediate material is designed for one single application with regard to the macro-and micro geometry.An exemplary application derived from the collaborative research center (SFB 442) "Environmentally friendly tribosystems" at the RWTH Aachen university is discussed. Results of fundamental research and their way into industrial applications are presented. The research development is reflected with regard to the development of the industrial PVD market. Regarding a process chain for the exemplary application the development method of surface technology is explained beginning with the production up to field testing of a new product.

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Surface Coatings for Superior Gears

Cited by 2 publications

References 4 publications

Electrochemical Characterization of Multilayer Cr/CrN-Based Coatings

Electrochemical Characterization of Multilayer Cr/CrN-Based Coatings

PVD – Eine Erfolgsgeschichte mit Zukunft

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