A new method for electroless Ni-P plating on AZ31 magnesium alloy

doi:10.1016/j.surfcoat.2007.05.001

CORC > 金属研究所 > 中国科学院金属研究所

	A new method for electroless Ni-P plating on AZ31 magnesium alloy
	Zhao, Hui ; Huang, Zhanghong ; Cui, Jianzhong
刊名	SURFACE & COATINGS TECHNOLOGY
	2007-11-15
卷号	202 期号:1 页码:133-139
关键词	organic coatings interlayer Ni-P film electroless plating corrosion resistance
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2007.05.001
通讯作者	Cui, Jianzhong(jzcui@mail.neu.edu.cn)
英文摘要	Coating Ni-P films on AZ31 magnesium alloys via electroless plating and organic coatings (organsilicon heat-resisting varnish), was studied. An organic coating was proposed as the interlayer between Ni-P coating and AZ31 magnesium alloy substrate, to replace the traditional chromium oxide plus HF pretreatment. The Ni-P deposited on the interlayer was also characterized by its structure, morphology and corrosion-resistance. The interlayer on the substrate not only reduces the corrosion of magnesium during Ni-P plating process, but also reduces the potential difference between the matrix and the second phase. The result of the cross-cut test indicates the adhesion between the substrate and the interlayer is good enough. A Ni-P film with fine and dense structure was obtained on the AZ31 magnesium alloy. The electrochemical measurements show that the sample with Ni-P film exhibits lower corrosion current density and more positive corrosion potential than the substrate. Furthermore, the Ni-P coating on the AZ31 magnesium alloy exhibits high corrosion resistance in the rapid corrosion test illustrated in this paper. The method proposed in this work is environmentally friendly: no fluoride or hexacalent chromium compounds are used. In addition, it provides a new concept for plating the metals, which are considered difficult to plate due to high reactivity. (C) 2007 Elsevier B.V. All rights reserved.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000250889800017
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/91653]
专题	金属研究所_中国科学院金属研究所
通讯作者	Cui, Jianzhong
作者单位	1.Northeastern Univ, Minist Educ, Key Lab Electromagnet Proc Mat, Shenyang 110004, Liaoning, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Environm Corrosion Ctr, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Hui,Huang, Zhanghong,Cui, Jianzhong. A new method for electroless Ni-P plating on AZ31 magnesium alloy[J]. SURFACE & COATINGS TECHNOLOGY,2007,202(1):133-139.
APA	Zhao, Hui,Huang, Zhanghong,&Cui, Jianzhong.(2007).A new method for electroless Ni-P plating on AZ31 magnesium alloy.SURFACE & COATINGS TECHNOLOGY,202(1),133-139.
MLA	Zhao, Hui,et al."A new method for electroless Ni-P plating on AZ31 magnesium alloy".SURFACE & COATINGS TECHNOLOGY 202.1(2007):133-139.