磷酸盐体系下不同电压对TC4钛合金微弧氧化陶瓷膜层的影响
The Impact of Different Voltage on TC4 Titanium Alloy Microarc Oxidation Ceramic Membrane in Phosphate Setting
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作者单位：贵州大学
中文关键字：钛合金 微弧氧化 电压
英文关键字： titanium alloy; microarc oxidation; ceramic membrane
中文摘要：在磷酸盐体系下采用不同电压对TC4钛合金进行微弧氧化处理，在其表面制得陶瓷膜层，利用扫描电镜、X射线衍射以及能谱仪对膜层形貌结构进行分析，并在20%H2SO4溶液中作腐蚀实验。结果表明，膜层的生成相由金红石和锐钛矿构成，随着电压的增加，表面形貌由原先的微孔较小、分布均匀逐渐变到微孔形状不规则，孔径变大，粗糙，并且腐蚀速率提高，耐腐蚀性下降。
英文摘要： Dfferent voltages were used to carry out microarc oxidation process to TC4 titanium alloy in phosphate setting, thus the ceramic membrane was prepared on its surface. XRay , diffractometer, scanning electronic microscope were utilized to analyze the features and structure of the membrane and subject it to erosion test in 20%H2SO4 solution. The results show, Generation phase is composed of rutile and anatase, and as the voltage increases, the feature of the membrane changes from the original small micro pore and even distribution to being larger and rougher pores, higher erosion rate and lower erosion resistance.