INFLUENCE OF HIGH TEMPERATURE PLASMA NITRIDING ON CORROSION RESISTANCE OF X12Cr13 STEEL

Kód výsledku v IS VaVaI

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Nalezeny alternativní kódy

RIV/00216305:26220/19:PU139698

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

INFLUENCE OF HIGH TEMPERATURE PLASMA NITRIDING ON CORROSION RESISTANCE OF X12Cr13 STEEL

Popis výsledku v původním jazyce

The martensitic stainless steel AISI 410 was subjected to plasma nitriding at an increased temperature of 550 degrees C, 24 h in 3H(2):1N(2) (l/h) nitriding gas ratio and compared to untreated one. The microstructure and microhardness of the untreated and nitrided stainless steel were evaluated. The corrosion properties of the untreated and plasma nitrided steel samples were evaluated using the anodic potentiodynamic polarization tests in neutral 2.5% NaCl deaerated solution. The phase analysis of nitrided steel sample was compared to untreated one. The results showed that plasma nitriding process on the X12Cr13 Steel (AISI 410) stainless steel produced a nitride layer consisting of compound layer and a nitrogen rich diffusion layer with iron carbides Fe3C, iron nitrides Fe4N, chromium nitrides Cr4N4 and chromium iron carbide Cr15Fe7C6. Plasma nitriding process significantly increased the surface hardness of the martensitic stainless steel but also decreased the corrosion resistance. The pitting and type of corrosion were evaluated, and the pitting coefficient was calculated. During electrochemical corrosion tests, the nitrided AISI 410 stainless steel showed lower corrosion potentials (more negative), higher current densities (nearly forty times higher) and nearly forty times increased corrosion rates compared to untreated X12Cr13 stainless steel.

Název v anglickém jazyce

INFLUENCE OF HIGH TEMPERATURE PLASMA NITRIDING ON CORROSION RESISTANCE OF X12Cr13 STEEL

Popis výsledku anglicky

The martensitic stainless steel AISI 410 was subjected to plasma nitriding at an increased temperature of 550 degrees C, 24 h in 3H(2):1N(2) (l/h) nitriding gas ratio and compared to untreated one. The microstructure and microhardness of the untreated and nitrided stainless steel were evaluated. The corrosion properties of the untreated and plasma nitrided steel samples were evaluated using the anodic potentiodynamic polarization tests in neutral 2.5% NaCl deaerated solution. The phase analysis of nitrided steel sample was compared to untreated one. The results showed that plasma nitriding process on the X12Cr13 Steel (AISI 410) stainless steel produced a nitride layer consisting of compound layer and a nitrogen rich diffusion layer with iron carbides Fe3C, iron nitrides Fe4N, chromium nitrides Cr4N4 and chromium iron carbide Cr15Fe7C6. Plasma nitriding process significantly increased the surface hardness of the martensitic stainless steel but also decreased the corrosion resistance. The pitting and type of corrosion were evaluated, and the pitting coefficient was calculated. During electrochemical corrosion tests, the nitrided AISI 410 stainless steel showed lower corrosion potentials (more negative), higher current densities (nearly forty times higher) and nearly forty times increased corrosion rates compared to untreated X12Cr13 stainless steel.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

28TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS (METAL 2019)

ISBN

978-80-87294-92-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

1016-1021

Název nakladatele

TANGER LTD

Místo vydání

Brno, Czech Republic

Místo konání akce

Brno, CZECH REPUBLIC

Datum konání akce

22. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000539487400166