Hydrogen degradation of pre-oxidized zirconium alloys. - Publikacja - MOST Wiedzy

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Hydrogen degradation of pre-oxidized zirconium alloys.

Abstrakt

The presence of the oxide layers on Zr alloys may retard or enhance the hydrogen entry and material degradation, depending on the layer features. This research has been aimed to determine the effects of pre-oxidation of the Zircaloy-2 alloy at a different temperature on hydrogen degradation. The specimens were oxidised in laboratory air at 350°C, 700°C, and 900°C. After, some samples were tensed at 10-5 strain rate and simultaneously charged with hydrogen under constant direct voltage in 1 N sulfuric acid at room temperature. Other specimens were charged without any tension, then annealed at 400°C for 4 h and finally tensed at above strain rate. The SEM examinations were performed on the cross-sections and fracture faces of specimens. The obtained results demonstrate the effects of the oxide layer on the cathodic current and hydrogen entry, mechanical properties and the appearance of hydrides and fracture behaviour.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Opublikowano w:
Advances in Materials Science nr 17, wydanie 1, strony 5 - 21,
ISSN: 1730-2439
Język:
angielski
Rok wydania:
2017
Opis bibliograficzny:
Hernik A., Gajowiec G., Zieliński A., Serbiński W., Olive J., Ossowska A.: Hydrogen degradation of pre-oxidized zirconium alloys.// Advances in Materials Science. -Vol. 17., iss. 1 (2017), s.5-21
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1515/adms-2017-0001
Weryfikacja:
Politechnika Gdańska

wyświetlono 16 razy

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