| 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].有色金属材料与工程,2019,40(5):14-21. |
| 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 |
| Effects of Pulse Frequency and Duty Cycle on Bioactive Coating on the 3D Printed Ti6Al4V Alloy Surface |
| |
| DOI：10.13258/j.cnki.nmme.2019.05.003 |
| 中文关键词: 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 |
| 英文关键词:3D printed Ti6Al4V alloy micro-arc oxidation pulse frequency pulse duty cycle bioactive coating |
| 基金项目: |
|
| 摘要点击次数: 132258 |
| 全文下载次数: 1712 |
| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
