| Mg-Li合金微弧氧化陶瓷膜的制备及其耐蚀性能 |
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| 引用本文： | 施玲玲,徐用军,李康,姚忠平,姜兆华. Mg-Li合金微弧氧化陶瓷膜的制备及其耐蚀性能[J]. 材料研究学报, 2009, 23(2) |
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| 作者姓名： | 施玲玲 徐用军 李康 姚忠平 姜兆华 |
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| 作者单位： | 1. 哈尔滨工业大学化工学院,哈尔滨,150001
2. 哈尔滨工业大学化工学院,哈尔滨,150001;哈尔滨工程大学超轻材料与表面技术教育部重点实验室,哈尔滨,150001 |
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| 摘 要： | 通过三种优化工艺体系在Mg-5%Li合金表面上生长陶瓷膜层,分析了膜层的厚度、显微结构、相组成和耐蚀性.结果表明,三种膜层都含有MgO相,微弧氧化试样的耐蚀性能都明最提高.使用Na3PO4体系制备的膜层含有MgF2,膜层最厚、表面有大量裂纹;使用Na2SiO3体系制备的膜层含有橄榄石型Mg2SiO4,耐点蚀性能最好;使用Na2SiO3-Na3PO4体系制备的膜层含有MgSiO3,致密性最好,膜层酎均匀腐蚀性能最好.
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| 关 键 词： | 材料失效与保护 Mg-Li合金 微弧氧化 陶瓷膜 耐蚀性 |
Corrosion resistance property of micro-arc oxidation coatings on Mg-Li alloy obtained in different systems |
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| SHI Lingling,XU Yongjun,LI Kang,YAO Zhongping,JIANG Zhaohua. Corrosion resistance property of micro-arc oxidation coatings on Mg-Li alloy obtained in different systems[J]. Chinese Journal of Materials Research, 2009, 23(2) |
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| Authors: | SHI Lingling XU Yongjun LI Kang YAO Zhongping JIANG Zhaohua |
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| Abstract: | Ceramic coatings were prepared on the surface of Mg-5%Li alloy in three kinds of optimized electrolytes by single-polar pulsed micro-arc oxidation(MAO).Thickness,microstructure,phase composition and corrosion resistance of the ceramic coatings were investigated.The results showed that all the MAO coatings were composed of MgO,and their corrosion resistance was improved distinctly.The coating gained in Na_3PO_4 system contained MgF_2,and was the thickest with a great deal of cracks;the coating from Na_2SiO_3... |
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| Keywords: | materials failure and protection Mg-Li alloy micro-arc oxidation ceramic coatings corrosion resistance |
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