Binary Additives Enhance Micro Arc Oxidation Coating on 6061Al Alloy with Improved Anti-Corrosion Property

doi:10.3390/coatings10020128

	Binary Additives Enhance Micro Arc Oxidation Coating on 6061Al Alloy with Improved Anti-Corrosion Property
	Zhu, Qingjun 1,2,3; Zhang, Binbin1,2,3 ; Zhao, Xia1,2,3 ; Wang, Binbin 1,2,3
	2020-02-01
发表期刊	COATINGS
卷号	10 期号:2 页码:11
通讯作者	Zhu, Qingjun(zhuqingjun@qdio.ac.cn)
摘要	Given the corrosion tendency of the natural oxide film of aluminum alloys, micro arc oxidation (MAO) treatment is used as an efficient and economic method to enhance the corrosion resistance. However, irregular voids, pores, and micro cracks are easily formed during the MAO process, which are harmful to the anti-corrosion property of MAO coatings. In this paper, binary additives of electrolytes, including (NaPO3)(6) and H3BO3, were used to obtain MAO coatings with improved thickness and compact microstructures on 6061 aluminum alloys. The as-prepared coatings were investigated using a thickness meter, scanning electron microscope (SEM), X-ray diffractometer (XRD), and electrochemical impedance spectroscope (EIS). The results showed that the coordinated influence of the binary additives could change the discharge behaviors and micro morphologies of the MAO coatings compared to the base silicate electrolyte. A thicker and stronger MAO coating could be achieved, which was mainly composed of Al2O3 phases. The EIS tests revealed that the corrosion current density of the obtained optimal MAO coating decreased by three orders of magnitude from 1.209 x 10(-6) Acm(-2) to 2.981 x 10(-9) Acm(-2). We believe that the binary additive-enhanced MAO coatings could provide a promising anti-corrosion solution in various applications.
关键词	micro arc oxidation binary additives corrosion aluminum alloy
DOI	10.3390/coatings10020128
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41806089] ; National Natural Science Foundation of China[41827805] ; Key R&D projects in Shandong[2018GGX102035]
WOS研究方向	Materials Science
WOS类目	Materials Science, Coatings & Films
WOS记录号	WOS:000522487300039
出版者	MDPI
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/167039
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Zhu, Qingjun
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhu, Qingjun,Zhang, Binbin,Zhao, Xia,et al. Binary Additives Enhance Micro Arc Oxidation Coating on 6061Al Alloy with Improved Anti-Corrosion Property[J]. COATINGS,2020,10(2):11.
APA	Zhu, Qingjun,Zhang, Binbin,Zhao, Xia,&Wang, Binbin.(2020).Binary Additives Enhance Micro Arc Oxidation Coating on 6061Al Alloy with Improved Anti-Corrosion Property.COATINGS,10(2),11.
MLA	Zhu, Qingjun,et al."Binary Additives Enhance Micro Arc Oxidation Coating on 6061Al Alloy with Improved Anti-Corrosion Property".COATINGS 10.2(2020):11.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Binary Additives Enh（4831KB）	期刊论文	出版稿	限制开放	CC BY-NC-SA	浏览