Characterization of microarc oxidation coatings formed on AM60B magnesium alloy in silicate and phosphate electrolytes
文献类型：期刊论文
| 作者 | Hu LT(胡丽天) ; Liang J(梁军)
|
| 刊名 | Applied Surface Science
 |
| 出版日期 | 2007 |
| 卷号 | 253页码:4490-4496 |
| 关键词 | Magnesium alloy Microarc oxidation Oxide coating Friction and wear Corrosion resistance |
| ISSN号 | 0169-4332 |
| 通讯作者 | 郝京诚 |
| 中文摘要 | 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. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the NSFC (Grant No. 50575218, L. Hu) |
| 语种 | 英语 |
| WOS记录号 | WOS:000244977000006 |
| 公开日期 | 2013-11-01 |
| 源URL | [http://210.77.64.217/handle/362003/4096]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_先进润滑与防护材料研究发展中心 |
| 推荐引用方式 GB/T 7714 | Hu LT,Liang J. Characterization of microarc oxidation coatings formed on AM60B magnesium alloy in silicate and phosphate electrolytes[J]. Applied Surface Science,2007,253:4490-4496. |
| APA | 胡丽天,&梁军.(2007).Characterization of microarc oxidation coatings formed on AM60B magnesium alloy in silicate and phosphate electrolytes.Applied Surface Science,253,4490-4496. |
| MLA | 胡丽天,et al."Characterization of microarc oxidation coatings formed on AM60B magnesium alloy in silicate and phosphate electrolytes".Applied Surface Science 253(2007):4490-4496. |
入库方式： OAI收割
来源：兰州化学物理研究所
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