Corrosion behavior of steels with reduced effective chromium content

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F18%3A10241788" target="_blank" >RIV/61989100:27360/18:10241788 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27690/18:10241788

Výsledek na webu

<a href="https://konsystest.tanger.cz/files/uploads/02/Metal2018_Conference_Proceedings_Content.pdf" target="_blank" >https://konsystest.tanger.cz/files/uploads/02/Metal2018_Conference_Proceedings_Content.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Corrosion behavior of steels with reduced effective chromium content

Popis výsledku v původním jazyce

The paper deals with the corrosion behavior of steels with reduced effective chromium content in the matrix, with the intent to estimate their long-term behavior in low aggressive environments, typical for the secondary and primary circuits of nuclear power plants. Materials for this research were steels with varying characteristics of influence of effective chromium content precipitation of chromium carbides or spinodal breakdown of chromium / martensitic steels, creating other types of chromium-rich phases, e.g. borides in austenitic steels. In addition, materials used as additional welding material or high alloy steel bolts were used. In these mentioned materials is chromium released by various mechanisms and the content of effective chromium in the solid solution is reduced (up to several units of wt. %), which may cause the overall passivity of the steel, to sensitivity to intergranular corrosion. Based on the basic techniques of material identification, the causes of different behavior of both types of steels after sensitization or tempering were estimated. They are described as being risky in terms of heterogeneity in the chromium content, which manifest themselves as active ways of corrosion. (C) 2018 TANGER Ltd., Ostrava.

Název v anglickém jazyce

Corrosion behavior of steels with reduced effective chromium content

Popis výsledku anglicky

The paper deals with the corrosion behavior of steels with reduced effective chromium content in the matrix, with the intent to estimate their long-term behavior in low aggressive environments, typical for the secondary and primary circuits of nuclear power plants. Materials for this research were steels with varying characteristics of influence of effective chromium content precipitation of chromium carbides or spinodal breakdown of chromium / martensitic steels, creating other types of chromium-rich phases, e.g. borides in austenitic steels. In addition, materials used as additional welding material or high alloy steel bolts were used. In these mentioned materials is chromium released by various mechanisms and the content of effective chromium in the solid solution is reduced (up to several units of wt. %), which may cause the overall passivity of the steel, to sensitivity to intergranular corrosion. Based on the basic techniques of material identification, the causes of different behavior of both types of steels after sensitization or tempering were estimated. They are described as being risky in terms of heterogeneity in the chromium content, which manifest themselves as active ways of corrosion. (C) 2018 TANGER Ltd., Ostrava.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2018 : 27th International Conference on Metallurgy and Materials : abstracts : May 23rd-25th 2018, Hotel Voronez I, Brno, Czech Republic, EU

ISBN

978-80-87294-83-3

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

777-782

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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