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A new method for electroless Ni-P plating on AZ31 magnesium alloy
Zhao, Hui; Huang, Zhanghong; Cui, Jianzhong
Corresponding AuthorCui, Jianzhong(jzcui@mail.neu.edu.cn)
2007-11-15
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume202Issue:1Pages:133-139
AbstractCoating 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.
Keywordorganic coatings interlayer Ni-P film electroless plating corrosion resistance
DOI10.1016/j.surfcoat.2007.05.001
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000250889800017
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:62[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/91655
Collection中国科学院金属研究所
Corresponding AuthorCui, Jianzhong
Affiliation1.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
Recommended Citation
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.
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