Effect of cathode pulse square-wave on the microstructure and corrosion resistance of PEO coatings of AZ91D magnesium alloy prepared in the Na2C4H4O6-KF-Na2SiO3 system

doi:10.1080/1478422X.2022.2118439

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	Effect of cathode pulse square-wave on the microstructure and corrosion resistance of PEO coatings of AZ91D magnesium alloy prepared in the Na2C4H4O6-KF-Na2SiO3 system
	Meng, Lingfei 4; Zhang, Wei 2,3; Zhang, Song 4; Zhang, Jifu 2; Zhang, Chunhua 4; Ye, Yun 2; Bao, Zebin 3; Wang, Fuhui 1
刊名	CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
	2022-09-07
页码	19
关键词	Magnesium alloy PEO cathode pulse voltage corrosion resistance
ISSN号	1478-422X
DOI	10.1080/1478422X.2022.2118439
通讯作者	Zhang, Wei(weizhang@imr.ac.cn) ; Zhang, Song(songzhang_sy@163.com)
英文摘要	Plasma electrolytic oxidation coatings were formed in Na2C4H4O6-KF-Na2SiO3 system on AZ91D magnesium alloy by controlling the single-pulse square-wave and bipolar pulse square-wave, respectively. Potentiodynamic polarisation (PD), electrochemical impedance spectroscopy (EIS) and electrochemical noise measurement (EN) were employed to investigate their corrosion behaviour in 3.5% NaCl solution. The results show that with bipolar pulse mode for PEO process, the growth rate of PEO coating on magnesium alloy first decreased and some micropores were present inside the PEO coating. With the increasing oxidation time, the PEO coating became much homogeneous and the porosity of the coating decreased largely, and the corrosion resistance of PEO coating was enhanced. The use of the bipolar pulse mode is beneficial to the improvement of the compactness and corrision performance of magnesium alloy with PEO treatment for the higher voltage stage and longer oxidation time.
资助项目	Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology[2020B1212060049] ; Guangdong Province Key Field R&D Program Project[2020B010186002] ; Joint Fund Project of the National Natural Science Foundation of China[U1537107] ; Key projects of the National Natural Science Foundation of China[51531007]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000850934200001
资助机构	Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology ; Guangdong Province Key Field R&D Program Project ; Joint Fund Project of the National Natural Science Foundation of China ; Key projects of the National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/175037]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Wei; Zhang, Song
作者单位	1.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 2.Guangdong Acad Sci, Inst New Mat, Guangdong Prov Key Lab Modern Surface Engn Techno, Guangzhou, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang, Peoples R China 4.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Meng, Lingfei,Zhang, Wei,Zhang, Song,et al. Effect of cathode pulse square-wave on the microstructure and corrosion resistance of PEO coatings of AZ91D magnesium alloy prepared in the Na2C4H4O6-KF-Na2SiO3 system[J]. CORROSION ENGINEERING SCIENCE AND TECHNOLOGY,2022:19.
APA	Meng, Lingfei.,Zhang, Wei.,Zhang, Song.,Zhang, Jifu.,Zhang, Chunhua.,...&Wang, Fuhui.(2022).Effect of cathode pulse square-wave on the microstructure and corrosion resistance of PEO coatings of AZ91D magnesium alloy prepared in the Na2C4H4O6-KF-Na2SiO3 system.CORROSION ENGINEERING SCIENCE AND TECHNOLOGY,19.
MLA	Meng, Lingfei,et al."Effect of cathode pulse square-wave on the microstructure and corrosion resistance of PEO coatings of AZ91D magnesium alloy prepared in the Na2C4H4O6-KF-Na2SiO3 system".CORROSION ENGINEERING SCIENCE AND TECHNOLOGY (2022):19.