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The effect of carbon within corrosion pits of iron in chloride solutions
Xu, Weichen1,2; Rayment, Trevor3,4; Davenport, Alison2
2017
发表期刊CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
卷号52期号:5页码:383-390
文章类型Article
摘要Iron artificial pits have been used in this work to investigate the effect of a carbon-based black layer that can form within a pit during iron dissolution in HCl solutions. Commercial purity iron (99.5%) and high purity iron (99.99+%) have been compared, and a black layer has been observed only in the 99.5% iron pit. It has been found that the formation of a black layer within an iron artificial pit is potential dependent: it can form at applied voltages below 0.2 V(SCE), but not at 0.6 V(SCE). The presence of a black layer can decrease the rate of mass transport inside a pit, which may help to maintain the aggressive acidic solution in an active pit. This effect has been characterised quantitatively via potentiostatic and potential step methods. In addition, the black layer has also been found to induce a small extra resistance in the solution.
关键词Iron Artificial Pit Carbon Solid Corrosion Product
DOI10.1080/1478422X.2017.1304618
收录类别SCI
语种英语
WOS记录号WOS:000402118200008
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/137106
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
2.Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, England
3.Diamond Light Source Ltd, Oxford, Oxon, England
4.Univ Birmingham, Sch Chem, Birmingham, W Midlands, England
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Xu, Weichen,Rayment, Trevor,Davenport, Alison. The effect of carbon within corrosion pits of iron in chloride solutions[J]. CORROSION ENGINEERING SCIENCE AND TECHNOLOGY,2017,52(5):383-390.
APA Xu, Weichen,Rayment, Trevor,&Davenport, Alison.(2017).The effect of carbon within corrosion pits of iron in chloride solutions.CORROSION ENGINEERING SCIENCE AND TECHNOLOGY,52(5),383-390.
MLA Xu, Weichen,et al."The effect of carbon within corrosion pits of iron in chloride solutions".CORROSION ENGINEERING SCIENCE AND TECHNOLOGY 52.5(2017):383-390.
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