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Corrosion behavior of an AZ91D magnesium alloy under a heterogeneous electrolyte layer
Wang, Yanhua1; Zhen, Cheng1; Zhang, Zhan1,2; Tao, Zhencheng3,4,5
2020-06-23
Source PublicationPLOS ONE
ISSN1932-6203
Volume15Issue:6Pages:15
Corresponding AuthorWang, Yanhua(wyhazz@163.com) ; Tao, Zhencheng(taozc@qdio.ac.cn)
AbstractThe corrosion behavior of an AZ91D magnesium alloy was investigated under a heterogeneous electrolyte layer by using electrochemical methods and surface analysis techniques. Dynamic polarization curves and morphological characterization were obtained at the center and near the edge zones under the electrolyte layer. The influence of the gas/liquid/solid three-phase boundary zone (TPB) on the corrosion behavior of the AZ91D magnesium alloy was discussed. The corrosion rate changed more significantly near the TPB zone than that at the other zones. The AZ91D alloy exhibited the characteristics of filiform corrosion together with shallow pitting corrosion. Different from the randomly distributed shallow pits, the filiform corrosion preferred to initiate near the TPB region and then progressively expanded adjacent to the edge of the electrolyte layer. The TPB zone played a vital role in determining the corrosion location, the corrosion morphologies and the corrosion rate of the magnesium alloy by influencing the mass transport process of carbon dioxide.
DOI10.1371/journal.pone.0234981
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51131005] ; National Key R&D Program of China[2017YFC1404402] ; Science & Technology Basic Resources Investigation Program of China[2017FY100803]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000544972400060
PublisherPUBLIC LIBRARY SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167886
Collection海洋生态与环境科学重点实验室
Corresponding AuthorWang, Yanhua; Tao, Zhencheng
Affiliation1.Ocean Univ China, Coll Chem & Chem Engn, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao, Peoples R China
2.Ocean Univ China, Lib, Qingdao, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
5.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Yanhua,Zhen, Cheng,Zhang, Zhan,et al. Corrosion behavior of an AZ91D magnesium alloy under a heterogeneous electrolyte layer[J]. PLOS ONE,2020,15(6):15.
APA Wang, Yanhua,Zhen, Cheng,Zhang, Zhan,&Tao, Zhencheng.(2020).Corrosion behavior of an AZ91D magnesium alloy under a heterogeneous electrolyte layer.PLOS ONE,15(6),15.
MLA Wang, Yanhua,et al."Corrosion behavior of an AZ91D magnesium alloy under a heterogeneous electrolyte layer".PLOS ONE 15.6(2020):15.
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