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Characterization and corrosion behavior of plasma electrolytic oxidation coated AZ91-T6 magnesium alloy
Department固体润滑国家重点实验室
Liu CC(刘灿灿)1,2; Liang J(梁军)1; Zhou JS(周健松)1; Li QB(李青彪)1,2; Peng ZJ(彭振军)1; Wang LQ(王凌倩)1; Liang J(梁军); Zhou JS(周健松)
The second department先进润滑与防护材料研究发展中心
2016
Source PublicationSurface and Coatings Technology
ISSN0257-8972
Volume304Pages:179-187
Abstract

AZ91 Mg alloy was treated by solid solution and ageing heat treatment (T6), followed by plasma electrolytic oxidation (PEO). The microstructure and corrosion behavior of the T6, PEO and T6-PEO treated AZ91 alloy as well as the as-received one were investigated using scanning electron microscopy, X-ray diffraction and corrosion tests, respectively. The chemical compositions of the naturally formed oxide film on sample surface were determined by X-ray photoelectron spectroscopy. Especially, the effect of T6 treatment on the corrosion behavior of the bare and PEO treated specimens was evaluated. Results showed that the T6 treatment resulted in the formation of high density fine β-phase in α-Mg matrix and enhanced the corrosion resistance of AZ91 alloy. Meanwhile, the T6-PEO treated alloy had much better corrosion resistance than the PEO treated one, due to the combined effects of reduced defects of PEO coating and improved corrosion resistance of the T6 treated substrate.

KeywordMagnesium Alloy Microstructure Heat Treatment Plasma Electrolytic Oxidation Corrosion Behavior
Subject Area材料科学与物理化学
DOI10.1016/j.surfcoat.2016.07.021
Funding Organizationthe National Natural Science Foundation of China (Grant No. 51505464);the “Hundred Talents Program” of Chinese Academy of Sciences (J. Liang)
Indexed BySCI
If2.589
Language英语
Funding Project空间润滑材料组;金属基高温润滑材料研究组
compositor第一作者单位
Citation statistics
Cited Times:38[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.licp.cn/handle/362003/20524
Collection固体润滑国家重点实验室(LSL)
中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心
Corresponding AuthorLiang J(梁军); Zhou JS(周健松)
Affiliation1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu CC,Liang J,Zhou JS,et al. Characterization and corrosion behavior of plasma electrolytic oxidation coated AZ91-T6 magnesium alloy[J]. Surface and Coatings Technology,2016,304:179-187.
APA Liu CC.,Liang J.,Zhou JS.,Li QB.,Peng ZJ.,...&周健松.(2016).Characterization and corrosion behavior of plasma electrolytic oxidation coated AZ91-T6 magnesium alloy.Surface and Coatings Technology,304,179-187.
MLA Liu CC,et al."Characterization and corrosion behavior of plasma electrolytic oxidation coated AZ91-T6 magnesium alloy".Surface and Coatings Technology 304(2016):179-187.
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