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results on the influence of hydrogen on corrosion resistance and of hydrogen embrittlement of 904L superaustenitic stainless steel were investigated. The cracking behavior was studied by performing a slow strain rate test in synthetic seawater under varying cathodic polarization conditions. The results showed that the steel’s plasticity varied with the applied cathodic current density. Significant reductions in ductility were found, indicating its susceptibility to hydrogen-assisted fracture at current density of 20 mA/cm2. Fractographical examinations showed that an increase in hydrogenation current density causes a stepwise decrease in ductility on the fracture surface. The effect of hydrogen on passivity and on pitting corrosion resistance was qualified with the polarization curves registered in synthetic seawater. The conclusion is that hydrogen may affect the passive film stability and thus may decrease the corrosion resistance of the studied steel. The presence of hydrogen increases corrosion current density and decreases the potential of the film breakdown. It was also found that the degree of the susceptibility to hydrogen degradation was dependent on the hydrogen charging conditions.
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Autorzy (4)
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J. Michalska
- Institute of Materials Science .
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B. Chmiela
- Institute of Materials Science .
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W. Simka
- Institute of Materials Science .
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Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s11665-014-1044-2
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
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JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
nr 23,
wydanie 8,
strony 2760 - 2765,
ISSN: 1059-9495 - Język:
- angielski
- Rok wydania:
- 2014
- Opis bibliograficzny:
- Michalska J., Chmiela B., Łabanowski J., Simka W.: Hydrogen Damage in Superaustenitic 904L Stainless Steels// JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE. -Vol. 23, iss. 8 (2014), s.2760-2765
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s11665-014-1044-2
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 94 razy
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