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Characterization of sputtered laboratory scale V-Al-C-N hard coatings and industrial scale-up for deposition on segmented forming tools for the automotive industry

Ziebert, C. ORCID iD icon; Stüber, M.; Ulrich, S.; Kolozsvari, S.; Pesch, P.; Wöstmann, S.


An emerging new approach is the design of carbon-based nanostructured
composite coatings being composed of nanocrystalline metastable hard phases
homogeneously dispersed in an amorphous carbon matrix or covered by an amorphous carbon
grain boundary phase. Such coatings could be used to locally tailor the friction coefficient of
forming tools in order to optimize the steel sheet forming process, to increase the manufacture
accuracy, to reduce the error rates and to increase the tool service life as planned in the related
publicly funded project IMAUF (‘‘Innovative methods for the design of forming tools in the
automotive industry’’). Nanocrystalline quaternary V-AI-C-N hard coatings were deposited
by reactive r.f.-magnetron sputtering in Ar/CH4 plasma on a laboratory scale Leybold Z550
machine using a combinatorial materials science approach. In each experiment, six coatings
of different composition and/or microstructure were obtained simultaneously by placing six
substrates in individual positions relative to a segmented target, composed of ceramic VC and
AlN half plates. The CH4 flow rate was systematically varied up to CH4 volume fractions of 8
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Zugehörige Institution(en) am KIT Institut für Materialforschung - Angewandte Werkstoffphysik (IMF1) (IMF1)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2010
Sprache Englisch
Identifikator ISBN: 978-3-85125-108-1
KITopen-ID: 170078777
HGF-Programm 43.12.01 (POF II, LK 01) Tailored properties of nanomaterials
Seiten 305-14
Erscheinungsvermerk Kolleck, R. [Hrsg.] Tools and Technologies for the Processing of Ultra High Strength Steels : Proc.of the IDDRG 50th Anniversary Conf., Graz, A, May 31 - June 2, 2010 Graz : Verl.d.Technischen Universität Graz, 2010
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