Effect of Initial Oxide Film on the Formation and Performance of Plasma Electrolytic Oxidation Coating on 7075 Aluminum Alloy

doi:10.1007/s40195-022-01378-7

IMR OpenIR

	Effect of Initial Oxide Film on the Formation and Performance of Plasma Electrolytic Oxidation Coating on 7075 Aluminum Alloy
	Zhu, Mingyu 1,2; Song, Yingwei 1; Dong, Kaihui 1,2; Shan, Dayong 1; Han, En-Hou 1
通讯作者	Song, Yingwei(ywsong@imr.ac.cn)
	2022-02-16
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	13
摘要	In the early stage of plasma electrolytic oxidation (PEO), the quick formation of the initial oxide film on the surface of the aluminum substrate is necessary for the subsequent discharge spark process. Furthermore, the compactness of the initial oxide film greatly affects the quality of the PEO coating, but the related mechanisms are not investigated in detail. In this paper, the status of the initial oxide film was adjusted by adding the (NaPO3)(6) into the based electrolyte, and then the effect of initial oxide film on the formation of the PEO coating was compared. Microstructure and chemical composition were analyzed by scanning electron microscope, transmission electron microscopy and X-ray photoelectron spectrometer. The compactness of the initial oxide film was characterized by Mott-Schottky plots. The corrosion resistance was measured by electrochemical impedance spectroscopy. The results show that the addition of (NaPO3)(6) can promote the co-deposition of phosphide compound into the initial oxide film and improve the film compactness, which is beneficial for the more uniform spark discharge in the later stage. As a result, the addition of (NaPO3)(6) is helpful to obtain PEO coating with better performance.
关键词	Aluminum alloys Plasma electrolytic oxidation Initial oxide film Growth process Spark discharge Compactness
资助者	LingChuang Research Project of China National Nuclear Corporation
DOI	10.1007/s40195-022-01378-7
收录类别	SCI
语种	英语
资助项目	LingChuang Research Project of China National Nuclear Corporation
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000757536400003
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：6[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/321006/173367
专题	中国科学院金属研究所
通讯作者	Song, Yingwei
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Mingyu,Song, Yingwei,Dong, Kaihui,et al. Effect of Initial Oxide Film on the Formation and Performance of Plasma Electrolytic Oxidation Coating on 7075 Aluminum Alloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:13.
APA	Zhu, Mingyu,Song, Yingwei,Dong, Kaihui,Shan, Dayong,&Han, En-Hou.(2022).Effect of Initial Oxide Film on the Formation and Performance of Plasma Electrolytic Oxidation Coating on 7075 Aluminum Alloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,13.
MLA	Zhu, Mingyu,et al."Effect of Initial Oxide Film on the Formation and Performance of Plasma Electrolytic Oxidation Coating on 7075 Aluminum Alloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):13.