Corrosion Resistance of High Temperature Plasma Nitrided X12CrMoWVNbN10-1-1 Martensitic Stainless Steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F18%3A00555684" target="_blank" >RIV/60162694:G43__/18:00555684 - isvavai.cz</a>

Výsledek na webu

<a href="http://ecst.ecsdl.org/" target="_blank" >http://ecst.ecsdl.org/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1149/08701.0451ecst" target="_blank" >10.1149/08701.0451ecst</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Corrosion Resistance of High Temperature Plasma Nitrided X12CrMoWVNbN10-1-1 Martensitic Stainless Steel

Popis výsledku v původním jazyce

The X12CrMoWVNbN10-1-1 martensitic stainless steel was subjected to plasma nitriding at an increased temperature of 550 degrees C for 15 h 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 results showed that plasma nitriding process on the X12CrMoWVNbN10-1-1 stainless steel produced a nitride layer consisting of compound layer and a nitrogen rich diffusion layer. Plasma nitriding process significantly increased the surface hardness of the martensitic stainless steel but also decreased the corrosion resistance of the X12CrMoWVNbN10-1-1 stainless steel. The pitting was evaluated, and the pitting coefficient was calculated. During electrochemical corrosion tests, the nitrided steel showed lower (more negative) corrosion potentials, higher current densities and greatly increased corrosion rates and pitting.

Název v anglickém jazyce

Corrosion Resistance of High Temperature Plasma Nitrided X12CrMoWVNbN10-1-1 Martensitic Stainless Steel

Popis výsledku anglicky

The X12CrMoWVNbN10-1-1 martensitic stainless steel was subjected to plasma nitriding at an increased temperature of 550 degrees C for 15 h 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 results showed that plasma nitriding process on the X12CrMoWVNbN10-1-1 stainless steel produced a nitride layer consisting of compound layer and a nitrogen rich diffusion layer. Plasma nitriding process significantly increased the surface hardness of the martensitic stainless steel but also decreased the corrosion resistance of the X12CrMoWVNbN10-1-1 stainless steel. The pitting was evaluated, and the pitting coefficient was calculated. During electrochemical corrosion tests, the nitrided steel showed lower (more negative) corrosion potentials, higher current densities and greatly increased corrosion rates and pitting.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

—

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

19TH INTERNATIONAL CONFERENCE ON ADVANCED BATTERIES, ACCUMULATORS AND FUEL CELLS (ABAF 2018)

ISBN

978-1-60768-864-8

ISSN

1938-5862

e-ISSN

1938-6737

Počet stran výsledku

6

Strana od-do

451-456

Název nakladatele

ELECTROCHEMICAL SOC INC

Místo vydání

Brno

Místo konání akce

Brno, CZECH REPUBLIC

Datum konání akce

26. 8. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000464895400053