摘要
在电解液中加入Cr2O3微粒对Ti6A14V合金进行微弧氧化处理，通过SEM、XRD及摩擦试验分析Cr2O3微粒复合对微弧氧化膜微观结构及摩擦磨损行为的影响。结果表明：加入Cr2O3微粒后，复合膜表面孔隙减少，耐磨性提高，膜层中出现了Cr2O3相。随着电解液中Cr2O3微粒的增加，复合膜厚度增加，Cr2O3相衍射峰不断增强，TiO2相逐渐减少，A1：TiO2相趋于消失。在0．5～1．5g／L内，复合膜的摩擦系数随Cr2O3微粒的增加而减小；加入量为1．5g／Lcr，0，微粒时，复合膜的耐磨性最好。
Microarc oxidation （MAO） coating on Ti6A14V alloy was treated in the electrolyte adding Cr203 microparticle. The influence of Cr2O3partieles on morphology, phase constituent and tribologieal behavior of MAO coatings was analyzed by SEM, XRD and wear test. The results show that the surface micropore of the composite coating decreases, the wear resistance improves, and the surface of composite coating appears Cr203 phase when Cr203 microparticles are added to MAO electrolyte. Besides, with increasing of CrzO3 mieroparticle content in electrolytes, the thickness of the coating increases, and the X-ray diffraction peak of Cr203 phase enhances continuously, TiO2 phase decreases gradually, and then A12TiO2 phase tends to disappear. The friction coefficient of the composite coating reduces gradually when Cr203 particle content increases from 0.5 g/L to 1.5 g/L. The composite coating exhibits good wear resistance when the content of Cr203 micropartiele in electrolyte is 1.5 g/L.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2014年第2期180-185,共6页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金资助项目(51361025)
江西省自然科学基金资助项目(20122BAB206017)
江西省教育厅科技项目(GJJ11699)
