The Study on the Overall Plasma Electrolytic Oxidation for 6061-7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory

CORC > 金属研究所 > 中国科学院金属研究所

	The Study on the Overall Plasma Electrolytic Oxidation for 6061-7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory
	Chen, YF; Song, XC; Zhou, JX; Liu, HT; Yang, YS; Song, XC (reprint author), Shandong Acad Sci, Adv Mat Inst, Jinan 250014, Shandong, Peoples R China.
刊名	MATERIALS
	2018
卷号	11 期号:1 页码:-
关键词	Micro-arc Oxidation Az31 Magnesium Alloy Corrosion Behavior Oxide-layers Galvanic Corrosion Al-alloy Microstructure Coatings Titanium Inhibition
ISSN号	1996-1944
英文摘要	Electrical connection of dissimilar metals will lead to galvanic corrosion. Therefore, overall surface treatment is necessary for the protection of dissimilar metal welded parts. However, serious unbalanced reactions may occur during overall surface treatment, which makes it difficult to prepare integral coating. In this paper, an overall ceramic coating was fabricated by plasma electrolytic oxidation to wrap the 6061-7075 welded part integrally. Moreover, the growth mechanism of the coating on different areas of the welded part was studied based on the dielectric breakdown theory. The reaction sequence of each area during the treatment was verified through specially designed dielectric breakdown tests. The results showed that the high impedance overall of ceramic coating can inhibit the galvanic corrosion of the 6061-7075 welded part effectively.; Electrical connection of dissimilar metals will lead to galvanic corrosion. Therefore, overall surface treatment is necessary for the protection of dissimilar metal welded parts. However, serious unbalanced reactions may occur during overall surface treatment, which makes it difficult to prepare integral coating. In this paper, an overall ceramic coating was fabricated by plasma electrolytic oxidation to wrap the 6061-7075 welded part integrally. Moreover, the growth mechanism of the coating on different areas of the welded part was studied based on the dielectric breakdown theory. The reaction sequence of each area during the treatment was verified through specially designed dielectric breakdown tests. The results showed that the high impedance overall of ceramic coating can inhibit the galvanic corrosion of the 6061-7075 welded part effectively.
学科主题	Materials Science, Multidisciplinary
语种	英语
资助机构	National key research and development program of China [2016YFB0301105, 2017YFB0103904]; Key research and development plan of Shandong province [2017CXGC0404]; National key research and development program of China [2016YFB0301105, 2017YFB0103904]; Key research and development plan of Shandong province [2017CXGC0404]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79597]
专题	金属研究所_中国科学院金属研究所
通讯作者	Song, XC (reprint author), Shandong Acad Sci, Adv Mat Inst, Jinan 250014, Shandong, Peoples R China.
推荐引用方式 GB/T 7714	Chen, YF,Song, XC,Zhou, JX,et al. The Study on the Overall Plasma Electrolytic Oxidation for 6061-7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory[J]. MATERIALS,2018,11(1):-.
APA	Chen, YF,Song, XC,Zhou, JX,Liu, HT,Yang, YS,&Song, XC .(2018).The Study on the Overall Plasma Electrolytic Oxidation for 6061-7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory.MATERIALS,11(1),-.
MLA	Chen, YF,et al."The Study on the Overall Plasma Electrolytic Oxidation for 6061-7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory".MATERIALS 11.1(2018):-.