| The effect of current mode and discharge type on the corrosion resistance of plasma electrolytic oxidation (PEO) coated magnesium alloy AJ62 | |
Hussein RO; Zhang P ; Nie X; Xia Y(夏原); Northwood DO; Nie, X (reprint author), Univ Windsor, Dept Mech Automot & Mat Engn, Windsor, ON N9B 3P4, Canada
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| Source Publication | Surface & Coatings Technology
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| 2011 | |
| Volume | 206Issue:7Pages:1990-1997 |
| ISSN | 0257-8972 |
| Abstract | Magnesium alloys are increasingly being used as lightweight materials in the automotive, defense, electronics, biomaterial and aerospace industries. However, their inherently poor corrosion and wear resistance have, so far, limited their application. Plasma electrolytic oxidation (PEO) in an environmentally friendly aluminates electrolyte has been used to produce oxide coatings with thicknesses of similar to 80 mu m on an AJ62 magnesium alloy. Optical emission spectroscopy (OES) in the visible and near ultraviolet (NUV) band (285 nm-800 nm) was employed to characterize the PEO plasma. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to characterize the coated materials, and potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) in a 3.5% NaCl solution were used to determine the corrosion behavior. It was found that the plasma discharge behavior significantly influenced the microstructure and the morphology of the oxide coatings and, hence the corrosion resistance. The corrosion resistance of the coated alloy was increased by changing the current mode from unipolar to bipolar, where the strong plasma discharges had been reduced or eliminated. (C) 2011 Elsevier B.V. All rights reserved. |
| Keyword | Magnesium Corrosion Plasma Electrolyte Oxidation Oes Electrochemical Impedance Spectroscopy Mg Alloy Coatings Behavior Silicate Az91d Microstructure Aluminum |
| Subject Area | Materials Science ; Physics |
| DOI | 10.1016/j.surfcoat.2011.08.060 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000298711500072 |
| WOS Keyword | ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ; MG ALLOY ; COATINGS ; BEHAVIOR ; SILICATE ; AZ91D ; MICROSTRUCTURE ; ALUMINUM |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| Funding Organization | This research was supported by Ontario Centres of Excellence (OCE) and the Natural Sciences and Engineering Research Council of Canada (NSERC). Dr. Y Xia was a Senior Visiting Scholar at the University of Windsor during this research project. |
| Department | MAM镀层工艺力学与摩擦学 |
| Classification | 二类/Q1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/45138 |
| Collection | 先进制造工艺力学实验室 |
| Corresponding Author | Nie, X (reprint author), Univ Windsor, Dept Mech Automot & Mat Engn, Windsor, ON N9B 3P4, Canada |
| Recommended Citation GB/T 7714 | Hussein RO,Zhang P,Nie X,et al. The effect of current mode and discharge type on the corrosion resistance of plasma electrolytic oxidation (PEO) coated magnesium alloy AJ62[J]. Surface & Coatings Technology,2011,206,7,:1990-1997. |
| APA | Hussein RO,Zhang P,Nie X,夏原,Northwood DO,&Nie, X .(2011).The effect of current mode and discharge type on the corrosion resistance of plasma electrolytic oxidation (PEO) coated magnesium alloy AJ62.Surface & Coatings Technology,206(7),1990-1997. |
| MLA | Hussein RO,et al."The effect of current mode and discharge type on the corrosion resistance of plasma electrolytic oxidation (PEO) coated magnesium alloy AJ62".Surface & Coatings Technology 206.7(2011):1990-1997. |
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