Investigation on Corrosion Resistance and Formation Mechanism of a P-F-Zr Contained Micro-Arc Oxidation Coating on AZ31B Magnesium Alloy Using an Orthogonal Method

doi:10.3390/coatings9030197

IMR OpenIR

	Investigation on Corrosion Resistance and Formation Mechanism of a P-F-Zr Contained Micro-Arc Oxidation Coating on AZ31B Magnesium Alloy Using an Orthogonal Method
	Zhu, Yuanyuan 1; Chang, Wenhui 1; Zhang, Shufang 1; Song, Yingwei 2; Huang, Huade 1; Zhao, Rongfang 1; Li, Guoqiang 1; Zhang, Rongfa 1; Zhang, Yijia 1
通讯作者	Zhang, Rongfa(rfzhang-10@163.com)
	2019-03-01
发表期刊	COATINGS
ISSN	2079-6412
卷号	9 期号:3 页码:17
摘要	In this study, the synergistic effects of NH4HF2, sodium phytate (Na(12)Phy), K2ZrF6, and treatment time on corrosion resistance of a micro-arc oxidation (MAO) treated magnesium alloy and the entrance mechanism of P, F, and Zr into anodic coatings were investigated using an orthogonal method. In addition, the roles of NH4HF2, Na(12)Phy, and K2ZrF6 on coating development were separately studied. The results show that NH4HF2 and Na(12)Phy, the corrosion inhibitors of magnesium alloys, are beneficial but K2ZrF6 is harmful to developing anodic coatings. The corrosion resistance of MAO coatings is synergistically determined by coating characteristics, though the coating thickness plays a main role. Na(12)Phy significantly improves but NH4HF2 decreases the corrosion resistance of MAO coatings, while excess high K2ZrF6 is harmful to the coating corrosion resistance. Treatment time can increase the coating thickness but is the least important factor in corrosion resistance. During MAO, NH4HF2, Na(12)Phy, and K2ZrF6 take part in coating formation, causing P, F, and Zr to compete with each other to enter into anodic coatings.
关键词	magnesium alloy micro-arc oxidation corrosion resistance fluorine zirconium
资助者	National Natural Science Foundation of China
DOI	10.3390/coatings9030197
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51361011] ; National Natural Science Foundation of China[51861007]
WOS研究方向	Materials Science
WOS类目	Materials Science, Coatings & Films
WOS记录号	WOS:000465608700004
出版者	MDPI
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/133042
专题	中国科学院金属研究所
通讯作者	Zhang, Rongfa
作者单位	1.Jiangxi Sci & Technol Normal Univ, Sch Mat & Electromech, Nanchang 330013, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Yuanyuan,Chang, Wenhui,Zhang, Shufang,et al. Investigation on Corrosion Resistance and Formation Mechanism of a P-F-Zr Contained Micro-Arc Oxidation Coating on AZ31B Magnesium Alloy Using an Orthogonal Method[J]. COATINGS,2019,9(3):17.
APA	Zhu, Yuanyuan.,Chang, Wenhui.,Zhang, Shufang.,Song, Yingwei.,Huang, Huade.,...&Zhang, Yijia.(2019).Investigation on Corrosion Resistance and Formation Mechanism of a P-F-Zr Contained Micro-Arc Oxidation Coating on AZ31B Magnesium Alloy Using an Orthogonal Method.COATINGS,9(3),17.
MLA	Zhu, Yuanyuan,et al."Investigation on Corrosion Resistance and Formation Mechanism of a P-F-Zr Contained Micro-Arc Oxidation Coating on AZ31B Magnesium Alloy Using an Orthogonal Method".COATINGS 9.3(2019):17.