Interaction effect between different constituents in silicate-containing electrolyte on PEO coatings on Mg alloy
文献类型:期刊论文
作者 | Chen, Yan1,2,3; Yang, Yange2; Zhang, Tao2; Zhang, Wei2; FuhuiWang2; Lu, Xiaopeng1; Blawert, Carsten1; Zheludkevich, Mikhail L.1 |
刊名 | SURFACE & COATINGS TECHNOLOGY |
出版日期 | 2016-12-15 |
卷号 | 307页码:825-836 |
ISSN号 | 0257-8972 |
关键词 | Magnesium Plasma electrolytic oxidation Response surface methodology IR spectroscopy |
DOI | 10.1016/j.surfcoat.2016.09.031 |
通讯作者 | Zhang, Tao(zhangtao@hrbeu.edu.cn) |
英文摘要 | The influence of different constituents in silicate containing alkaline electrolytes on PEO-coated AZ91D magnesium alloy has been systematically studied using response surface methodology (RSM) coupled with electrochemical measurements and microstructure characterization methods. The results indicate that the most dominant factor that determines the coating performance is the interaction between Na2SiO3 and NaOH, where better corrosion resistance could be achieved when their concentrations are tuned in different directions. Infrared spectrum analysis of the electrolytes innovatively indicates that the degree of polymerization of silicate ions (from one to two-and three-dimensional), varied by the concentration of Na2SiO3 and NaOH, influences the kinetic mechanism of coating formation and thermal-driven gel-forming process under sparking. When silicates species exist as a relatively higher polymerized state, which indicates lower mobility of silicates in the electrolyte and better affinity for trapping Al3+ to form gel-like networks, the resulting coating is inhomogeneous and susceptible to corrosive ions; otherwise, the coating is more homogeneous and exhibits improved corrosion resistance. The work herein aims to provide guidelines for designing PEO electrolyte via correlating the intrinsic nature of the electrolyte with coating properties. (C) 2016 Elsevier B.V. All rights reserved. |
资助项目 | program of Outstanding Young Scholars ; Program of Hundred Talents of Chinese Academy of Sciences ; National Natural Science Foundation of China[51531007] ; Chinese Academy of Sciences ; German Academic Exchange Service |
WOS研究方向 | Materials Science ; Physics |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE SA |
WOS记录号 | WOS:000390622200099 |
资助机构 | program of Outstanding Young Scholars ; Program of Hundred Talents of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; German Academic Exchange Service |
源URL | [http://ir.imr.ac.cn/handle/321006/123475] |
专题 | 金属研究所_中国科学院金属研究所 |
通讯作者 | Zhang, Tao |
作者单位 | 1.Helmholtz Zentrum Geesthacht, Inst Mat Res, Max Plank Str 1, D-21502 Geesthacht, Germany 2.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Wencui RD 62, Shenyang 110016, Peoples R China 3.Univ Chinese Acad Sci, Yuquan RD 19, Beijing 110049, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Yan,Yang, Yange,Zhang, Tao,et al. Interaction effect between different constituents in silicate-containing electrolyte on PEO coatings on Mg alloy[J]. SURFACE & COATINGS TECHNOLOGY,2016,307:825-836. |
APA | Chen, Yan.,Yang, Yange.,Zhang, Tao.,Zhang, Wei.,FuhuiWang.,...&Zheludkevich, Mikhail L..(2016).Interaction effect between different constituents in silicate-containing electrolyte on PEO coatings on Mg alloy.SURFACE & COATINGS TECHNOLOGY,307,825-836. |
MLA | Chen, Yan,et al."Interaction effect between different constituents in silicate-containing electrolyte on PEO coatings on Mg alloy".SURFACE & COATINGS TECHNOLOGY 307(2016):825-836. |
入库方式: OAI收割
来源:金属研究所
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