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dc.contributor.authorLo, I-Hsuang
dc.contributor.authorFu, Yan
dc.contributor.authorLin, Chang-Jian
dc.contributor.author林昌健
dc.contributor.authorTsai, Wen-Ta
dc.date.accessioned2011-10-05T16:17:18Z
dc.date.available2011-10-05T16:17:18Z
dc.date.issued2005-03
dc.identifier.citationCORROSION SCIENCE,2006,48(3):696-708zh_CN
dc.identifier.issn0010-938X
dc.identifier.urihttp://dx.doi.org/doi:10.1016/j.corsci.2005.02.004
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10848
dc.description.abstractSelective dissolution could occur in duplex stainless steels (DSSs) due to the difference in chemical composition between the two constituent phases. In this study, the effect of H2SO4/HCl composition on the selective dissolution behavior was investigated. The results indicated that there were two distinct peaks appeared in the active-to-passive transition region in the polarization curve. The peak appeared at a lower potential region was associated with the preferential dissolution of ferrite phase while that for austenite at a higher potential. In the concentration ranges of 0.25-2 M of H2SO4 and 0.25-2 M of HCl, the magnitude of the peak anodic current density and the resolution between these two peaks greatly depended on the composition of H2SO4/HCl. However, the anodic peaks corresponding to the respective dissolutions of ferrite and austenite became less distinguishable when the concentrations of HCl exceeded 1.2 M. Image analysis using scanning electron microscopy (SEM) was performed to confirm the selective dissolution of each constituent phase after potentiostatic polarization at the respective anodic peak potential. (C) 2005 Elsevier Ltd. All rights reserved.zh_CN
dc.language.isoenzh_CN
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDzh_CN
dc.subjectduplex stainless steelzh_CN
dc.subjectselective dissolutionzh_CN
dc.subjectactive-to-passive transitionzh_CN
dc.titleEffect of electrolyte composition on the active-to-passive transition behavior of 2205 duplex stainless steel in H2SO4/HCl solutionszh_CN
dc.typeArticlezh_CN


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