燕山大学学报Issue(5)：402-406,5.DOI:10.3969/j.issn.1007-791X.2013.05.005
微弧氧化过程中不同阶段超声波作用对陶瓷层的影响
Effect of ultrasonic on micro-arc oxidation ceramic coatings in different stage
摘要
Abstract
The introduction of ultrasonic treatment on the micro-arc oxidation process is proven to effectively increase the growth rate and quality of the ceramic coatings. In this paper, the ultrasonic treatment is introduced in three stages of the micro-arc oxidation processes by controlling the introduction time of ultrasonic treatment. The cross-section morphologies, element content, phase structure, surface micro-structure and corrosion resistance of micro-arc oxidation coatings are examined by X-ray diffraction, scan-ning electron microscopy and potentiodynamic polarization, respectively. The results suggest that the ultrasonic treatment has effect on the three stages of micro-arc oxidation process. The thickness of ceramic coatings increases, in particular, the effect gets more pronounced in the later stage. When ultrasonic processing is introduced in the early stage, the content of -Al2O3 in the coating in-creases, while the content of Si and P are the highest, greatly enhancing the corrosion resistance. The -Al2O3 is dominant when ultrasonic processing is introduced in the later stage.关键词
微弧氧化/6061铝合金/超声波/陶瓷层Key words
micro-arc oxidation/6061 Al alloy/ultrasonic/ceramic coatings分类
矿业与冶金引用本文复制引用
姜桂荣,蔡景瑞,夏永红,杨亚倩,陈翯,李国龙,刘凯,吴来磊,沈德久..微弧氧化过程中不同阶段超声波作用对陶瓷层的影响[J].燕山大学学报,2013,(5):402-406,5.基金项目
国家自然科学基金资助项目（51171167）；河北省自然科学基金资助项目 （）
