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Effect of alpha-Al2O3 on the properties of cold sprayed Al/alpha-Al2O3 composite coatings on AZ91D magnesium alloy
Tao, Yongshan; Xiong, Tianying; Sun, Chao; Jin, Huazi; Du, Hao; Li, Tiefan
Corresponding AuthorXiong, Tianying(tyxiong@imr.ac.cn)
2009-10-15
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume256Issue:1Pages:261-266
AbstractComposite coatings using pure Al powder blended with alpha-Al2O3 as feedstock were deposited on AZ91D magnesium alloy substrates by cold spray (CS). The content of alpha-Al2O3 in the feedstock was 25 wt.% and 50 wt.%, respectively. The effects of alpha-Al2O3 on the porosity, microhardness, adhesion and tensile strength of the coatings were studied. Electrochemical tests were carried out in neutral 3.5 wt.% NaCl solution to evaluate the effect of alpha-Al2O3 on the corrosion behavior of the coatings. The results showed that the composite coatings possessed lower porosity, higher adhesion strength and tensile strength than cold sprayed pure Al coating. The corrosion current densities of the composite coatings were similar to that of the pure Al coating and much higher than that of bare AZ91D magnesium alloy. (C) 2009 Elsevier B.V. All rights reserved.
KeywordCold spray Porosity Corrosion AZ91D Composite coatings
DOI10.1016/j.apsusc.2009.08.012
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000270679500049
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:97[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/99193
Collection中国科学院金属研究所
Corresponding AuthorXiong, Tianying
AffiliationChinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Beijing 110016, Peoples R China
Recommended Citation
GB/T 7714
Tao, Yongshan,Xiong, Tianying,Sun, Chao,et al. Effect of alpha-Al2O3 on the properties of cold sprayed Al/alpha-Al2O3 composite coatings on AZ91D magnesium alloy[J]. APPLIED SURFACE SCIENCE,2009,256(1):261-266.
APA Tao, Yongshan,Xiong, Tianying,Sun, Chao,Jin, Huazi,Du, Hao,&Li, Tiefan.(2009).Effect of alpha-Al2O3 on the properties of cold sprayed Al/alpha-Al2O3 composite coatings on AZ91D magnesium alloy.APPLIED SURFACE SCIENCE,256(1),261-266.
MLA Tao, Yongshan,et al."Effect of alpha-Al2O3 on the properties of cold sprayed Al/alpha-Al2O3 composite coatings on AZ91D magnesium alloy".APPLIED SURFACE SCIENCE 256.1(2009):261-266.
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