关玉芹,武卫社,杜军,凡婷,穆松林,李文芳.6063 铝合金表面 Ce-Mn / Mo 复合转化膜的制备及性能[J].表面技术,2014,43(6):79-83.
GUAN Yu-qin,WU Wei-she,DU Jun,FAN Ting,MU Song-lin,LI Wen-fang.Study on Preparation and Properties of Ce-Mn/ Mo Composite Conversion Coating on 6063 Aluminum Alloy[J].Surface Technology,2014,43(6):79-83 |
| 6063 铝合金表面 Ce-Mn / Mo 复合转化膜的制备及性能 |
| Study on Preparation and Properties of Ce-Mn/ Mo Composite Conversion Coating on 6063 Aluminum Alloy |
| 投稿时间：2014-06-28 修订日期：2014-12-10 |
| DOI： |
| 中文关键词: 铝合金 Ce-Mn/ Mo 复合转化膜 耐蚀性 耐候性 |
| 英文关键词:aluminum alloy Ce-Mn / Mo composite conversion coating corrosioen resistance weatherability |
| 基金项目:粤港关键领域重点突破(佛山专项)专项基金(2008Z012);广东省重大科技专项(产业共性技术)基金(2009A08025002) |
| 作者 | 单位 |
| 关玉芹 | 华南理工大学 材料科学与工程学院, 广州 510640 |
| 武卫社 | 华昌铝厂有限公司, 广东 佛山 528231 |
| 杜军 | 华南理工大学 材料科学与工程学院, 广州 510640 |
| 凡婷 | 华南理工大学 材料科学与工程学院, 广州 510640 |
| 穆松林 | 华南理工大学 材料科学与工程学院, 广州 510640 |
| 李文芳 | 华南理工大学 材料科学与工程学院, 广州 510640 |
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| Author | Institution |
| GUAN Yu-qin | School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China |
| WU Wei-she | Huachang Aluminum Factory Co. Ltd, Foshan 528231, China |
| DU Jun | School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China |
| FAN Ting | School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China |
| MU Song-lin | School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China |
| LI Wen-fang | School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China |
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| 摘要点击次数: |
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| 中文摘要: |
| 目的 进一步改善 6063 铝合金表面 Ce-Mn 转化膜的综合性能。 方法 采用以 Ce(NO3 )3 和KMnO4 为主盐的转化液,在 6063 铝合金表面制备出 Ce-Mn 转化膜,再利用钼酸钠溶液进行后处理,优化处理工艺,获得 Ce-Mn/ Mo 复合转化膜。 对后处理前后的转化膜形貌、成分及电化学性能进行对比,并通过空气中放置、磨损测试的方法对比它们的耐候性和耐磨性。 结果 较优的成膜工艺为:18 g/ L Na2MoO4,1. 5 g/ L 十二烷基苯磺酸钠,成膜时间 18 min,成膜温度 45 ℃ 。 经后处理后,膜层颜色由金黄色转变为棕黑色,组织致密,主要由 Ce,Mn,Mo,O 和 Al 等元素组成,厚度提高至约 7 μm,腐蚀电流密度降低了约 85% 。 结论 与 Ce-Mn 膜层相比,Ce-Mn/ Mo 复合转化膜具有更优异的耐蚀性、耐候性和耐磨性。 |
| 英文摘要: |
| Objective To improve the comprehensive properties of the Ce-Mn conversion coating deposited on 6063 aluminum alloy. Methods The Ce-Mn conversion coating was firstly prepared in the solution mainly containing cerium nitrate and potassium permanganate. After that, the Ce-Mn coating was post-treated in the molybdate solution, the treatment processes were optimized, a novel Ce-Mn/ Mo composite conversion coating was formed and its microstructure and properties were characterized. Results The optimal film formation process parameters were as following: Na2MoO4 18 g/ L, sodium dodecyl benzene sulfonate(SDBS)1. 5 g/ L, conversion time 18 min, deposition temperature 45 ℃. After post-treatment, the color of the Ce-Mn coating changed from golden yellow to brownish-black. The test result showed that the Ce-Mn/ Mo composite coating was uniform and dense tissue. This coating was mainly composed of Ce, Mn, Mo, O and Al elements, and the thickness of Ce-Mn/ Mo composite conversion coating was significantly increased to about 7 μm. The corrosion current density was reduced by about 85% . Conclusion Compared with the CeMn coating, the Ce-Mn / Mo composite coating exhibited excellent corrosion resistance, weatherability and wear resistance. |
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