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| Description
| - The requirements for materials used in the machine parts production, especially their functional characteristics and service life are currently increasing. Thin ceramic coatings deposited on the surface of tools and machine parts by PVD methods improve considerably their tribological properties. These hard brittle coatings can be damaged rapidly if a plastic deformation initiates in the substrate near the coating-substrate interface when subject to relatively high intensity loading. Therefore, the strengthening of substrate surface layers, e.g. by plasma nitriding, appears to be a suitable solution of the low strength of the substrate. The paper resumes results of tribological testing of duplex coating tool steels. Steel samples (31CrMoV9) were nitrated and subsequently treated by PVD process. There were deposited different coatings (TiN, CrN, TiAlN and multilayer 3x(CrN-TiN)) with thickness 1 and 3µm. Samples were tested and characteristics like nanohardness, hardness of duplex coating, friction coefficient (pin on disc), coating thickness (Calotest), resistance against abrasion (Scratch test) and adhesive wear (HEF) were measured. Results of friction coefficient and wear measured by %22HEF%22 tribometer are summarized in this paper. The conclusions drawn from the experiment show that duplex treatment is a useful way to increase the die service life. Current thin wear-resistant surface layers and duplex coatings bring remarkable extension of service life and reliability to parts, tools and dies as confirmed by this research. Still most coating technologies have not managed to reach the limits of their possibilities so far.
- The requirements for materials used in the machine parts production, especially their functional characteristics and service life are currently increasing. Thin ceramic coatings deposited on the surface of tools and machine parts by PVD methods improve considerably their tribological properties. These hard brittle coatings can be damaged rapidly if a plastic deformation initiates in the substrate near the coating-substrate interface when subject to relatively high intensity loading. Therefore, the strengthening of substrate surface layers, e.g. by plasma nitriding, appears to be a suitable solution of the low strength of the substrate. The paper resumes results of tribological testing of duplex coating tool steels. Steel samples (31CrMoV9) were nitrated and subsequently treated by PVD process. There were deposited different coatings (TiN, CrN, TiAlN and multilayer 3x(CrN-TiN)) with thickness 1 and 3µm. Samples were tested and characteristics like nanohardness, hardness of duplex coating, friction coefficient (pin on disc), coating thickness (Calotest), resistance against abrasion (Scratch test) and adhesive wear (HEF) were measured. Results of friction coefficient and wear measured by %22HEF%22 tribometer are summarized in this paper. The conclusions drawn from the experiment show that duplex treatment is a useful way to increase the die service life. Current thin wear-resistant surface layers and duplex coatings bring remarkable extension of service life and reliability to parts, tools and dies as confirmed by this research. Still most coating technologies have not managed to reach the limits of their possibilities so far. (en)
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| Title
| - Wear Resistance of Duplex Coated Cr-Mo-V Alloyed Steel
- Wear Resistance of Duplex Coated Cr-Mo-V Alloyed Steel (en)
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| skos:prefLabel
| - Wear Resistance of Duplex Coated Cr-Mo-V Alloyed Steel
- Wear Resistance of Duplex Coated Cr-Mo-V Alloyed Steel (en)
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| skos:notation
| - RIV/68407700:21220/12:00194015!RIV13-MSM-21220___
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| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21220/12:00194015
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Friction Coefficient; Wear Resistance; Duplex Coating; HEF; PVD (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Suchánek, Jan
- Kolaříková, Marie
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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