表面技术Issue(4)：43-47,5.
纳米α-Al2 O3添加剂对铝合金微弧氧化膜层性能的影响
Effects of Nano α-Al2 O3 Additive on the Performance of Micro-arc Oxidation Coating Formed on Aluminum Alloy
摘要
Abstract
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.关键词
铝合金/微弧氧化/纳米α-Al2O3添加剂Key words
aluminum alloy/micro-arc oxidation/nano-α-Al2 O3 additive分类
矿业与冶金引用本文复制引用
黄丹,张晓燕,吴德凤..纳米α-Al2 O3添加剂对铝合金微弧氧化膜层性能的影响[J].表面技术,2014,(4):43-47,5.基金项目
贵州省国际科技合作计划项目(2012-7001) （2012-7001）
贵阳市社会发展与民生科技计划项目(2012103-70)Fund：Supported by the International Scientific and Technological Cooperation Projects of Guizhou Province (2012-7001) and the Social Development and People’s Livelihood Science and Technology Projects of Guiyang City(2012103-70) （2012103-70）
