5083铝合金微弧氧化涂层的组织结构与腐蚀性能研究  

Study on Microstructure and Corrosion Property of Micro-arc Oxidation Coating on 5083 Aluminum Alloy

作　　者：钱庭海 侯曾军 彭志强[1] 田宏[1] QIAN Ting-hai HOU Zeng-jun PENG Zhi-qiang TIAN Hong(School of Materials Science and Engineering, Heilongjiang University of Science and Technology, Harbin Heilongjiang 150022, China)

机构地区：[1]黑龙江科技大学材料科学与工程学院,黑龙江哈尔滨150022

出　　处：《热处理技术与装备》2016年第5期37-39,共3页Heat Treatment Technology and Equipment

摘　　要：采用微弧氧化法在5083铝合金表面制备陶瓷涂层。用XRD方法分析涂层的物相和组织结构,并评价涂层在3.5ω%NaCl溶液中的腐蚀行为。涂层由γ-Al_2O_3相组成,厚度约8~10μm。微弧氧化处理后5083铝合金的腐蚀电流密度大大降低,耐腐蚀性能提高。The ceramic coating was prepared by micro-arc oxidation on 5083 aluminum alloy. The phase composition and structure of the coating were analyzed by X-ray diffraction（ XRD）,and the corrosion behavior of coatings in 3. 5% NaCl solution was evaluated. The coating consists of γ-Al_2O_3 and the thickness of the coating is about from 8 to 10 μm. The corrosion current density of 5083 aluminum alloy treated by micro-arc oxidation is greatly decreased,and the corrosion resistance is significantly improved.

关 键 词：5083铝合金 微弧氧化 涂层 腐蚀 

分 类 号：TG174.4[金属学及工艺—金属表面处理]