Microstructure and Corrosion Behavior of Laser Surface Alloyed Magnesium Alloys with TiO2-CeO2
Department先进润滑与防护材料研究发展中心
Lingqian Wang; Jiansong Zhou; Youjun Yu; Chun Guo
The second department金属基高温润滑材料组
2019-07
Source PublicationPROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES
Volume55Issue:4Pages:729-734
Abstract

TiO2–CeO2 ceramic oxides were prepared on magnesium alloys by laser surface alloying for corrosion protection. The microstructure and composition of laser modified surfaces were characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), optical microscope (OM), energy-dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The corrosion behavior was analyzed by electrochemical and salt spray tests. The effect of relative proportion between the two ceramic components on corrosion resistance of laser alloyed magnesium alloys was investigated. Results showed that there was a margin improvement in corrosion resistance after laser surface alloying with TiO2 and CeO2 at the ratio of 4 : 1 (wt %) due to the protection effect of oxides. When the content of CeO2 increased, and the ratio of TiO2 and CeO2 was 1 : 4 (wt %), defects were introduced for the poor compatibility between CeO2 and Mg matrix. The defects speed up the failure of the layer, and the corrosion resistance was even decreased compared with the as-received magnesium alloy.

Keywordmagnesium alloy laser surface alloying TiO2–CeO2 microstructure corrosion behavior
Subject Area材料科学
MOST Discipline Catalogue工学
DOI10.1134/S2070205119040282
Indexed BySCIE
If0.787
Language英语
compositor第一作者单位
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.licp.cn/handle/362003/25708
Collection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
固体润滑国家重点实验室(LSL)
Corresponding AuthorJiansong Zhou
Affiliation中国科学院兰州化学物理研究所
Corresponding Author AffilicationLanzhou Institute of Chemical Physics,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lingqian Wang,Jiansong Zhou,Youjun Yu,et al. Microstructure and Corrosion Behavior of Laser Surface Alloyed Magnesium Alloys with TiO2-CeO2[J]. PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES,2019,55(4):729-734.
APA Lingqian Wang,Jiansong Zhou,Youjun Yu,&Chun Guo.(2019).Microstructure and Corrosion Behavior of Laser Surface Alloyed Magnesium Alloys with TiO2-CeO2.PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES,55(4),729-734.
MLA Lingqian Wang,et al."Microstructure and Corrosion Behavior of Laser Surface Alloyed Magnesium Alloys with TiO2-CeO2".PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES 55.4(2019):729-734.
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