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dc.contributor.author김용수-
dc.date.accessioned2017-09-01T04:55:14Z-
dc.date.available2017-09-01T04:55:14Z-
dc.date.issued2015-11-
dc.identifier.citationMODERN PHYSICS LETTERS B, v. 29, NO 32, Page. 1-12, Article Number: 1550200en_US
dc.identifier.issn0217-9849-
dc.identifier.issn1793-6640-
dc.identifier.urihttp://www.worldscientific.com/doi/abs/10.1142/S0217984915502000-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/28800-
dc.description.abstractThis work investigates the hydrogen precipitation effects on the electrochemical behavior of Zircaloy-4 in acidic saline media. The specimens of Zircaloy-4 were hydrogen charged at 200, 400 and 600 porn concentrations for 30 min at 400 degrees C. X-ray diffraction (XRD) studies confirmed the formation of delta hydrides in the material. Scanning electron microscopy (SEM) results also indicated the presence of elongated hydrides whose density and thickness increased with the increase of hydrogen concentration in the alloy. The corrosion kinetics of the specimens were explored before and after hydrogen precipitation using potentiodynamic anodic polarization (PAP) and electrochemical impedance spectroscopy (EIS) techniques. The results showed that hydrogen precipitation shifts the corrosion potential towards more positive and thus improves the corrosion resistance of the alloy. The charge transfer resistance (R-ct) of the alloy was found to increase with increasing hydrogen concentration. This indicates an increased polarization tendency of the Zircaloy-4 surface with a limited dissolution tendency in the presence of delta hydrides.en_US
dc.description.sponsorshipThis work was supported by the Research Fund of Survivability Technology Defense Research Center of Agency for Defense Development of Korea (No. UD150013ID).en_US
dc.language.isoenen_US
dc.publisherWORLD SCIENTIFIC PUBL CO PTE LTDen_US
dc.subjectZircaloy-4en_US
dc.subjecthydrogen precipitationen_US
dc.subjecthydridesen_US
dc.subjectcorrosion potentialen_US
dc.subjectpotentio-dynamic anodic polarizationen_US
dc.titleElectrochemical behavior of hydrogen precipitated Zircaloy-4en_US
dc.typeArticleen_US
dc.relation.no32-
dc.relation.volume29-
dc.identifier.doi10.1142/S0217984915502000-
dc.relation.page1-12-
dc.relation.journalMODERN PHYSICS LETTERS A-
dc.contributor.googleauthorRafique, Mohsin-
dc.contributor.googleauthorAfzal, Naveed-
dc.contributor.googleauthorDeen, K. M.-
dc.contributor.googleauthorKim, Yong-Soo-
dc.relation.code2015003294-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF NUCLEAR ENGINEERING-
dc.identifier.pidyongskim-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > NUCLEAR ENGINEERING(원자력공학과) > Articles
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