Duplex Coating of P/M M2 grade Ledeburitic Steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F45807698%3A_____%2F01%3A00000104" target="_blank" >RIV/45807698:_____/01:00000104 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Duplex Coating of P/M M2 grade Ledeburitic Steel

Popis výsledku v původním jazyce

The P/M M2 tool steel was surface processed (plasma nitrided, duplex coated). Surface characteristics like the microstructure, hardness and nitrogen concentration depth profiles and phase constitution have been investigated. Wear behaviour was tested bythe ring - on - plate tribological with various contact pressure and sliding distance. It has been determined that the temperature of plasma nitriding has to be at least of 500 oC and a nitrogen rich atmosphere has to be used when a sufficient surface strengthening should be achieved. Structural evaluation revealed good adhesion of the PVD - overlay on nitrided substrate. Effect of PVD TiN - coating on wear resistance is very positive when the specimens were heavily loaded, because the wear rate was reduced to approx. 5 % in comparison with non - coated samples. If lower load was used then the improvement was not significant. This is due to changes of wear mechanism which take place when the testing load is increased from 50 to 150 N.

Název v anglickém jazyce

Duplex Coating of P/M M2 grade Ledeburitic Steel

Popis výsledku anglicky

The P/M M2 tool steel was surface processed (plasma nitrided, duplex coated). Surface characteristics like the microstructure, hardness and nitrogen concentration depth profiles and phase constitution have been investigated. Wear behaviour was tested bythe ring - on - plate tribological with various contact pressure and sliding distance. It has been determined that the temperature of plasma nitriding has to be at least of 500 oC and a nitrogen rich atmosphere has to be used when a sufficient surface strengthening should be achieved. Structural evaluation revealed good adhesion of the PVD - overlay on nitrided substrate. Effect of PVD TiN - coating on wear resistance is very positive when the specimens were heavily loaded, because the wear rate was reduced to approx. 5 % in comparison with non - coated samples. If lower load was used then the improvement was not significant. This is due to changes of wear mechanism which take place when the testing load is increased from 50 to 150 N.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/OE54%2F1" target="_blank" >OE54/1: Povrchové technologie pro progresivní ledeburitické oceli a tvrdé materiály</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2001

Kód důvěrnosti údajů

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

Název statě ve sborníku

Book of abstracts

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

45-45

Název nakladatele

Institute for Materials and Technologies

Místo vydání

Portorož

Místo konání akce

Portorož

Datum konání akce

14. 11. 2001

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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