电化学抛光和阳极氧化处理后TC4钛合金表面的生物活性
Bioactivity of TC4 Titanium Alloy Surface after Electrochemical Polishing and Anodic Oxidation
摘 要
对TC4钛合金分别进行电化学抛光和阳极氧化处理, 研究了处理后表面的形貌和物相; 将处理后的合金浸泡于模拟体液中21 d, 以研究其表面的生物活性。结果表明: 与阳极氧化表面相比, 电化学抛光表面的孔穴总数较低, 但却具有更多的纳米尺度孔穴、更低的表面粗糙度以及更高的生物活性; 电化学抛光表面和阳极氧化表面的钙磷比(原子比)分别为1.61和1.59, 接近于羟基磷灰石的(1.67)。
电化学抛光
阳极氧化
生物活性
表面粗糙度
TC4 titanium alloy
electrochemical polishing
anodic oxidation
bioactivity
surface roughness
Abstract
The surface morphology and phase of electrochemical polished and anodic oxidized TC4 (Ti6Al4V) titanium alloys surface were studied, respectively, and then the treated alloys were immersed in simulated body fluid for 21 d to study its bioactivity. The results show that, comparing to the anodic oxidized surface, the electrochemical polished surface had more nano-scale cavities (fewer total cavitities), lower surface roughness and slightly higher bioactivity. The ratios of Ca to P of electrochemical polished polished surface and anodic oxidized surface were respectively 1.61 and 1.59, which were closed to that of hydroapatite (1.67).
中图分类号 TG174.4
所属栏目 材料性能及其应用
基金项目 江苏省高校自然基金重大项目资助(11KJA430004); 江苏大学优秀学术青年骨干培养对象基金资助项目(1211110001)
收稿日期 2012/10/22
修改稿日期 2013/9/16
网络出版日期
作者单位点击查看
备注许晓静(1967-), 男, 江苏东台人, 教授, 博士。
引用该论文: XU Xiao-jing,ZHU Li-hua,SHENG Xin-lan,ZHANG Ti-feng,LIU Min,NIU Xiao-ya. Bioactivity of TC4 Titanium Alloy Surface after Electrochemical Polishing and Anodic Oxidation[J]. Materials for mechancial engineering, 2013, 37(11): 60～63
许晓静,朱利华,盛新兰,张体峰,刘敏,牛小丫. 电化学抛光和阳极氧化处理后TC4钛合金表面的生物活性[J]. 机械工程材料, 2013, 37(11): 60～63
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【4】SUL Y T, JOHANSSON C B, JEONG Y, et al. The electrochemical oxide growth behaviour on titanium in acid and alkaline electrolytes[J].Medical Engineering & Physics, 2001, 23(5): 329-346.
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