黄丹,张晓燕,吴德凤.纳米 α-Al2O3添加剂对铝合金微弧氧化膜层性能的影响[J].表面技术,2014,43(4):43-47.
HUANG Dan,ZHANG Xiao-yan,WU De-feng.Effects of Nano α-Al2O3 Additive on the Performance of Micro-arc Oxidation Coating Formed on Aluminum Alloy[J].Surface Technology,2014,43(4):43-47 |
| 纳米 α-Al2O3添加剂对铝合金微弧氧化膜层性能的影响 |
| Effects of Nano α-Al2O3 Additive on the Performance of Micro-arc Oxidation Coating Formed on Aluminum Alloy |
| 投稿时间：2014-04-16 修订日期：2014-05-12 |
| DOI： |
| 中文关键词: 铝合金 微弧氧化 纳米 α-Al2O3 添加剂 |
| 英文关键词:aluminum alloy micro-arc oxidation nano-α-Al2O3additive |
| 基金项目:贵州省国际科技合作计划项目(2012-7001) ;贵阳市社会发展与民生科技计划项目 (2012103-70) |
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| 中文摘要: |
| 目的 探究微弧氧化电解液中纳米 α-Al2O3 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-Al2O3,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-Al2O3、γ-Al2O3 和 SiO2。 当纳米α-Al2O3 添加量为 3 g / L 时,膜层表面微裂纹少,孔隙率小,厚度达 70 μm,硬度为 513 HV,耐腐蚀性能好。结论 硅酸盐电解液中加入纳米 α-Al2O3,能够改善铝合金微弧氧化膜层的综合性能。 |
| 英文摘要: |
| Objective To explore the effects of α-Al2O3 content on the microstructure and mechanical properties of the coating formed on aluminum alloy by the method of micro-arc oxidation with α-Al2O3 addition in electrolyte system. Methods Different ceramic coatings were obtained by adding 1 ~ 5 g / L nanoα-Al2O3 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-Al2O3 , γ-Al2O3 and SiO2 . There were few micro-cracks and small porosity of the coating when the content of nano α-Al2O3 was 3 g / L, and the thickness reached 70 μm, the hardness was 513 HV and the corrosion resistance of the coating was good. Conclusion Addition of α-Al2O3 into the silicate electrolyte system could improve the comprehensive performances of the micro-arc oxidation coating on alu |
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