HYDROGEN EMBRITTLEMENT OF DUPLEX STEEL 22/05

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

HYDROGEN EMBRITTLEMENT OF DUPLEX STEEL 22/05

Popis výsledku v původním jazyce

The presented paper evaluates hydrogen embrittlement of a duplex steel 22/05 with ferritic-austenitic microstructure. Tensile specimens with diameter d0 = 4 mm were electrolytically hydrogen charged in 0.1 N solution of H2SO4, without or with addition of1 g of KSCN per 1 liter of solution, for 24 hours or 168 hours. The current density for hydrogen charging varied from i = 1 to 5 mA.cm-2. Tensile tests with low strain rate were performed immediately after hydrogen charging. Impact of hydrogen on mechanical properties of the duplex steel during tensile test was confirmed by decreasing of plastic properties, especially reduction in area. Degree of embrittlement was expressed by the index of hydrogen embrittlement F. Hydrogen charging at current densityi = 1 mA.cm-2 caused almost none embrittlement of the steel studied, index of hydrogen embrittlement F = 0.8 %. Some decreasing of reduction in area was observed for increased current density 5 mA.cm-2, but the index of hydrogen embrittle

Název v anglickém jazyce

HYDROGEN EMBRITTLEMENT OF DUPLEX STEEL 22/05

Popis výsledku anglicky

The presented paper evaluates hydrogen embrittlement of a duplex steel 22/05 with ferritic-austenitic microstructure. Tensile specimens with diameter d0 = 4 mm were electrolytically hydrogen charged in 0.1 N solution of H2SO4, without or with addition of1 g of KSCN per 1 liter of solution, for 24 hours or 168 hours. The current density for hydrogen charging varied from i = 1 to 5 mA.cm-2. Tensile tests with low strain rate were performed immediately after hydrogen charging. Impact of hydrogen on mechanical properties of the duplex steel during tensile test was confirmed by decreasing of plastic properties, especially reduction in area. Degree of embrittlement was expressed by the index of hydrogen embrittlement F. Hydrogen charging at current densityi = 1 mA.cm-2 caused almost none embrittlement of the steel studied, index of hydrogen embrittlement F = 0.8 %. Some decreasing of reduction in area was observed for increased current density 5 mA.cm-2, but the index of hydrogen embrittle

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

20th Anniversary International Conference on Metallurgy and Materials: METAL 2011

ISBN

978-80-87294-24-6

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

571-576

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

18. 5. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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