| 脉冲频率及占空比对3D打印Ti6Al4V合金表面生物活性涂层的影响 |
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| 引用本文： | 朱威,何代华,刘翔,刘平.脉冲频率及占空比对3D打印Ti6Al4V合金表面生物活性涂层的影响[J].上海理工大学学报,2019,40(5):14-21. |
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| 作者姓名： | 朱威 何代华 刘翔 刘平 |
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| 作者单位： | 上海理工大学 材料科学与工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093,上海微创医疗器械(集团)有限公司, 上海 201210,上海理工大学 材料科学与工程学院, 上海 200093 |
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| 摘 要： | 采用微弧氧化法，在恒定电压下，使用不同的脉冲频率及脉冲占空比，在3D打印Ti6Al4V合金表面制备生物活性涂层。利用扫描电子显微镜、能谱仪、电化学工作站、涡流膜厚仪、Image J软件和划痕仪等对涂层进行结构、性能以及微观形貌表征，研究脉冲频率和脉冲占空比对涂层的影响。结果表明：随着脉冲频率的增加，涂层的平均孔径、Ca/P比、表面粗糙度和厚度均逐渐减小，孔隙率变化不明显；耐腐蚀性先得到改善后变差；涂层与基体的结合力逐渐变大。随着脉冲占空比增大，涂层的平均孔径、孔隙率、Ca/P比、厚度逐渐变大；耐腐蚀性能呈现先好后差的趋势；涂层与基体的结合力逐渐变弱。
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| 关 键 词： | 3D打印Ti6Al4V合金 微弧氧化 脉冲频率 脉冲占空比 生物活性涂层 |
| 收稿时间： | 2019/2/8 0:00:00 |
Effects of Pulse Frequency and Duty Cycle on Bioactive Coating on the 3D Printed Ti6Al4V Alloy Surface |
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| ZHU Wei,HE Daihu,LIU Xiang and LIU Ping.Effects of Pulse Frequency and Duty Cycle on Bioactive Coating on the 3D Printed Ti6Al4V Alloy Surface[J].Journal of University of Shanghai For Science and Technology,2019,40(5):14-21. |
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| Authors: | ZHU Wei HE Daihu LIU Xiang and LIU Ping |
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| Affiliation: | School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,Shanghai MicroPort Medical (Group) Co., Ltd., Shanghai 201210, China and School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China |
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| Abstract: | Bioactive coatings were prepared on the surface of 3D printed Ti6Al4V alloy under constant voltage mode with pulse frequency and pulse duty cycle respectively. Structure, properties and micromorphology of bioactive coating were analyzed by scanning electron microscopy, energy dispersive spectrometer, electrochemical workstation, eddy current thickness meter, Image J software and scratch tester. The effects of pulse frequency and duty cycle on the bioactive coating were studied. The results show that with the increase of pulse frequency, the average pore size, Ca/P ratio, roughness and thickness are gradually decreased. The change of porosity is not obvious. The corrosion resistance is firstly improved and then deteriorated. The bonding strength between coating and substrate becomes larger gradually. With the increase of pulse duty cycle, the average pore size, porosity, Ca/P ratio and thickness of the coating are gradually increased. The corrosion resistance is better first and then worse. The bonding force between coating and substrate gradually weakens. |
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| Keywords: | 3D printed Ti6Al4V alloy micro-arc oxidation pulse frequency pulse duty cycle bioactive coating |
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