| Characterization of microarc oxidation coatings formed on AM60B magnesium alloy in silicate and phosphate electrolytes | |
| Department | 固体润滑国家重点实验室 ; 先进润滑与防护材料研究发展中心 |
Liang J(梁军) ; Hu LT(胡丽天); Hao JC(郝京诚)
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| 2007 | |
| Source Publication | Applied Surface Science
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| ISSN | 0169-4332 |
| Volume | 253Pages:4490-4496 |
| Abstract | Microarc oxidation coatings on AM60B magnesium alloy were prepared in silicate and phosphate electrolytes. Structure, composition, mechanical property, tribological, and corrosion resistant characteristics of the coatings was studied by scanning electron microscope (SEM), Xray diffraction (XRD) and microhardness analyses, and by ball-on-disc friction and potentiodynamic corrosion testing. It is found that the coating produced from the silicate electrolyte is compact and uniform and is mainly composed of MgO and forsterite Mg2SiO4 phases, while the one formed in phosphate electrolyte is relatively porous and is mainly composed of MgO phase. The thick coating produced from a silicate electrolyte possesses a high hardness and provides a low wear rate (3.55 10 5 mm3/Nm) but a high friction coefficient against Si3N4 ball. A relatively low hardness and friction coefficient while a high wear rate (8.65 10 5 mm3/Nm) is recorded during the testing of the thick coating produced from a phosphate electrolyte. Both of these types of coatings provide effective protection for the corrosion resistance compared with the uncoated magnesium alloy. The coating prepared from the silicate electrolyte demonstrates better corrosion behavior due to the compacter microstructure. |
| Keyword | Magnesium Alloy Microarc Oxidation Oxide Coating Friction And Wear Corrosion Resistance |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the NSFC (Grant No. 50575218, L. Hu) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 特种油脂和密封材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4096 |
| 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 Author | Hao JC(郝京诚) |
| Recommended Citation GB/T 7714 | Liang J,Hu LT,Hao JC. Characterization of microarc oxidation coatings formed on AM60B magnesium alloy in silicate and phosphate electrolytes[J]. Applied Surface Science,2007,253:4490-4496. |
| APA | 梁军,胡丽天,&郝京诚.(2007).Characterization of microarc oxidation coatings formed on AM60B magnesium alloy in silicate and phosphate electrolytes.Applied Surface Science,253,4490-4496. |
| MLA | 梁军,et al."Characterization of microarc oxidation coatings formed on AM60B magnesium alloy in silicate and phosphate electrolytes".Applied Surface Science 253(2007):4490-4496. |
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| File Name/Size | DocType | Version | Access | License | ||
| 20074490-4496.pdf（1074KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
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