Effects of current frequency on the structural characteristics and corrosion property of ceramic coatings formed on magnesium alloy by PEO technology

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	Effects of current frequency on the structural characteristics and corrosion property of ceramic coatings formed on magnesium alloy by PEO technology
	Lv, GH ; Chen, H ; Gu, WC ; Li, L ; Niu, EW ; Zhang, XH ; Yang, SZ
刊名	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
	2008
卷号	208 期号:1-3 页码:9
关键词	PLASMA ELECTROLYTIC OXIDATION MICRO-ARC OXIDATION AZ91D RESISTANCE BEHAVIOR COMPOSITE ALUMINUM
ISSN号	0924-0136
通讯作者	Lv, GH: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	Plasma electrolytic oxidation (PEO) process was carried out on magnesium alloy with a pulsed direct current (dc) power source at high and low frequencies. The morphology and phase composition of the coatings were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The corrosion performances of the different coatings were evaluated via a three-electrode system in a 3.5-wt.% NaCl solution. it was detected that the PEO coatings were mainly composed of MgF2 and Mg-3(PO3)(2) phase. Coatings produced at relative high frequency had smaller pore size and looked much denser than those at low frequency. As a result, they performed better corrosion resistance in the present corrosive solution. These experimental results could be ascribed to the formation mechanism of the PEO coatings: lower frequency provided longer time for one single pulse, which induced continuous discharge. (C) 2008 Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	National Natural Science Foundation of China [10675165]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/36689]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Lv, GH,Chen, H,Gu, WC,et al. Effects of current frequency on the structural characteristics and corrosion property of ceramic coatings formed on magnesium alloy by PEO technology[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2008,208(1-3):9.
APA	Lv, GH.,Chen, H.,Gu, WC.,Li, L.,Niu, EW.,...&Yang, SZ.(2008).Effects of current frequency on the structural characteristics and corrosion property of ceramic coatings formed on magnesium alloy by PEO technology.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,208(1-3),9.
MLA	Lv, GH,et al."Effects of current frequency on the structural characteristics and corrosion property of ceramic coatings formed on magnesium alloy by PEO technology".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 208.1-3(2008):9.