Stabilized austenitic stainless steels and their passive state

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25794787%3A_____%2F10%3A%230000298" target="_blank" >RIV/25794787:_____/10:#0000298 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/25794787:_____/10:#0000402

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Stabilized austenitic stainless steels and their passive state

Popis výsledku v původním jazyce

Stability of the passive state is the function mainly of the chemical composition, structural sensitivity, and the state of stressing of the metal, coupled with the specific environment, as is also the case e.g., with boiling water and pressure water reactors. The effects of titanium and niobium in the solid solution on passive state stability of CrNi and CrNiMo steels as well as on their localized corrosion are compared. Electrochemical polarization measurements involving reactivation from the outset of the passive region indicated a reduction of the critical reactivation current density for the titanium-stabilized steels. Cyclic polarization measurements in 1 mol/l NaCl confirmed the positive effect of titanium, compared to niobium, on the depassivation potentials, although the repassivation and corrosion potentials were subject to only inconsiderable changes. Capillary defectoscopy of U-band type specimens tested at 275°C in H3BO3 plus Fe2O3 solution has not revealed any corrosion c

Název v anglickém jazyce

Stabilized austenitic stainless steels and their passive state

Popis výsledku anglicky

Stability of the passive state is the function mainly of the chemical composition, structural sensitivity, and the state of stressing of the metal, coupled with the specific environment, as is also the case e.g., with boiling water and pressure water reactors. The effects of titanium and niobium in the solid solution on passive state stability of CrNi and CrNiMo steels as well as on their localized corrosion are compared. Electrochemical polarization measurements involving reactivation from the outset of the passive region indicated a reduction of the critical reactivation current density for the titanium-stabilized steels. Cyclic polarization measurements in 1 mol/l NaCl confirmed the positive effect of titanium, compared to niobium, on the depassivation potentials, although the repassivation and corrosion potentials were subject to only inconsiderable changes. Capillary defectoscopy of U-band type specimens tested at 275°C in H3BO3 plus Fe2O3 solution has not revealed any corrosion c

Druh

D - Stať ve sborníku

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F08%2F1789" target="_blank" >GA106/08/1789: Mechanismus degradace deformačně zpevněných korozivzdorných ocelí v agresívních podmínkách</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

New methods of damage and failure analysis of structural parts

ISBN

978-80-248-2265-5

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

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Název nakladatele

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Místo vydání

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Místo konání akce

Ostrava

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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