Povrchové zpracování oceli Vanadis 6 plasmovou nitridací a povlakováním CrN

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Surface Processing of the Vanadis 6 Steel with Plasma Nitriding and CrN PVD - Coating

Popis výsledku v původním jazyce

The Vanadis 6 cold - work steel was heat treated (austenitized, quenched and double tempered) to a resulting hardness of 60 HRC and subsequently surface processed via the plasma nitriding and/or CrN - PVD coating. The plasma nitriding increases the surface hardness and microhardness du to the saturation of the surface with nitrogen that is connected with the formation of nitrides. Simultaneously, the compressive stresses are formed in the near surface region. As a result of the plasma nitriding, the material becomes more brittle but more wear resistant. Subsequent PVD - layering with the chromium nitride lowered the friction coefficient and tended to a considerable improvement of wear resistance. Also the local chemistry of the coating has to be takeninto account for the evaluation of the coating - the Cr - surplus makes it possible to reduce the stress induced by the loading, that leads to the increase of critical load in order of magnitude.

Název v anglickém jazyce

Surface Processing of the Vanadis 6 Steel with Plasma Nitriding and CrN PVD - Coating

Popis výsledku anglicky

The Vanadis 6 cold - work steel was heat treated (austenitized, quenched and double tempered) to a resulting hardness of 60 HRC and subsequently surface processed via the plasma nitriding and/or CrN - PVD coating. The plasma nitriding increases the surface hardness and microhardness du to the saturation of the surface with nitrogen that is connected with the formation of nitrides. Simultaneously, the compressive stresses are formed in the near surface region. As a result of the plasma nitriding, the material becomes more brittle but more wear resistant. Subsequent PVD - layering with the chromium nitride lowered the friction coefficient and tended to a considerable improvement of wear resistance. Also the local chemistry of the coating has to be takeninto account for the evaluation of the coating - the Cr - surplus makes it possible to reduce the stress induced by the loading, that leads to the increase of critical load in order of magnitude.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2004

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

CO-MAT-TECH

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

STU v Bratislave, MtF

Místo vydání

Trnava

Místo konání akce

Trnava

Datum konání akce

14. 10. 2004

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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