目的：探究微弧氧化电解液中纳米α-Al2 O3的浓度对铝合金微弧氧化膜层组织和性能的影响。方法在硅酸盐体系电解液中加入15 g / L 纳米α-Al2 O3,微弧氧化获得不同的陶瓷膜层,对膜层的微观结构、厚度、硬度和耐腐蚀性能进行分析。结果膜层的主要组成相为α-Al2 O3、γ-Al2 O3和 SiO2。当纳米α-Al2 O3添加量为3 g / L 时,膜层表面微裂纹少,孔隙率小,厚度达70μm,硬度为513HV,耐腐蚀性能好。结论硅酸盐电解液中加入纳米α-Al2 O3,能够改善铝合金微弧氧化膜层的综合性能。
Objective To explore the effects of α-Al2 O3 content on the microstructure and mechanical properties of the coating formed on aluminum alloy by the method of micro-arc oxidation with α-Al2 O3 addition in electrolyte system. Methods Different ce-ramic coatings were obtained by adding 1 ~ 5 g/ L nanoα-Al2 O3 additive into the silicate system solution and the micro-structure, thickness, hardness and corrosion resistance were analyzed. Results The main phases of the coating were α-Al2 O3 , γ-Al2 O3 and SiO2 . There were few micro-cracks and small porosity of the coating when the content of nano α-Al2 O3 was 3 g/ L, and the thick-ness reached 70 μm, the hardness was 513 HV and the corrosion resistance of the coating was good. Conclusion Addition ofα-Al2 O3 into the silicate electrolyte system could improve the comprehensive performances of the micro-arc oxidation coating on alu-minum alloy.
参考文献
| [1] | 杨钿,周隆先 . 铝合金微弧氧化技术应用研究[J].装备环境工程,2013,10(6):131-135. YANG Tian,ZHOU Long-xian. Study on Application of Alu-minum Alloy with Micro Arc Oxidation[J]. Equipment En-vironmental Engineering, 2013,10(6):131-135.,2013. |
| [2] | 韩东锐,张波,欧家才,陈丽君.微弧氧化6061铝合金的腐蚀行为研究[J].装备环境工程,2010(02):29-31,35. |
| [3] | 薛文斌,蒋兴莉,杨卓,张盈,李夕金,田华.6061铝合金微弧氧化陶瓷膜的生长动力学及性能分析[J].功能材料,2008(04):603-606,610. |
| [4] | 郝建民,魏小旖,陈永楠,陈宏.1060铝合金微弧氧化黑色陶瓷膜显色特性及着色机理[J].表面技术,2014(01):44-49. |
| [5] | 邵忠财,康凤娣,郝清伟,等 . LF4 铝合金微弧氧化膜层的性能[J].材料研究学报,2009,20(5):528-532. SHAO Zhong-cai, KANG Feng-di, HAO Qing-wei, et al. Effect of the Technological Parameters on the Properties of Microarc Oxidation Coating of LF4 Al-alloy [J]. Chinese Journal of Materials Research,2009,20(5):528-532.,2009. |
| [6] | 薛文斌,邓志威,陈如意,张通和.LY12铝合金微弧氧化陶瓷膜的纳米压入研究[J].稀有金属材料与工程,2001(04):281-285. |
| [7] | 刘瑞霞,郭锋,李鹏飞,刘亮,王双,赵瑞瑞,张艳丽.稀土元素对镁合金微弧氧化陶瓷层表面形貌和结构的影响[J].金属热处理,2008(11):70-73. |
| [8] | 钱超时,李鹏飞,郭锋,尹建代,贾岳.微弧氧化TiO2膜层相结构及其对光催化性能的影响[J].表面技术,2012(06):7-9. |
| [9] | LALEH M,SABOUR ROUHAGHDA A,SHAHRABI T . Effect of Alumina Sol Addition to Micro-arc Oxidation Electrolyte on the Properties of MAO Coatings Formed on Magnesium Alloy AZ91D[J].Journal of Alloys and Compounds,2010,496:548-552.,2010. |
| [10] | BAYATI M R,GOLESTANI-FARD F,MOSHFEGH A Z . The Effect of Growth Parameters on Photo-catalytic Perfor-mance of the MAO-synthesized TiO2 Nano-porous Layers[J].Materials Chemistry and Physics,2010,20 |
| [11] | 吴德凤,雷源源,张晓燕,周小淞.纳米SiO2添加剂对铸造铝铜合金微弧氧化陶瓷层耐磨性的影响[J].表面技术,2013(05):42-44. |
| [12] | 刘亚萍,段良辉,马淑仙,潘俊德,崔彩娥,缪强.Al2O3粉末对镁合金微弧氧化陶瓷膜的显微结构及其耐蚀性的影响[J].中国腐蚀与防护学报,2007(04):202-205. |
| [13] | 李波,邵玲玲.氧化铝、氢氧化铝的XRD鉴定[J].无机盐工业,2008(02):54-57. |
| [14] | 龚建飞 .铸造Al-Si合金微等离子体氧化陶瓷膜的获得及其特性研究[D].武汉理工大学,2005. |
| [15] | 赵坚,宋仁国,李红霞,陈小明,李杰,卢果.纳米添加剂对6063铝合金微弧氧化层组织与性能的影响[J].材料热处理学报,2010(04):125-128. |
| [16] | 蒋百灵,张先锋.不同电导率溶液中镁合金微弧氧化陶瓷层的生长规律及耐蚀性[J].稀有金属材料与工程,2005(03):393-396. |
| [17] | 阎峰云,林华,马颖,范松岩.镁合金微弧氧化电解液电导率的研究[J].轻合金加工技术,2007(05):28-31. |
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