| 镁合金AM60表面改性及其在Hank's溶液中的腐蚀 |
| |
| 引用本文： | 曾荣昌,孙智富,陈君,丁立昕,刘和平. 镁合金AM60表面改性及其在Hank's溶液中的腐蚀[J]. 重庆理工大学学报(自然科学版), 2007, 0(10) |
| |
| 作者姓名： | 曾荣昌 孙智富 陈君 丁立昕 刘和平 |
| |
| 作者单位： | 重庆工学院材料科学与工程学院 重庆400050 |
| |
| 基金项目： | 国家自然科学基金资助项目(50405005)，重庆市自然科学基金资助项目(8655) |
| |
| 摘 要： | 采用等离子喷涂TiO2对镁合金AM60进行表面改性,利用扫描电子显微镜和能谱发现分别观察了涂层结构,分析了其化学成分,通过表面纳米划痕实验研究了涂层的力学性能,用动电位电化学方法测量镁合金及其涂层的腐蚀性能.研究表明:AM60镁合金表面等离子热喷涂TiO2涂层具有多孔的陶瓷结构,存在鳞片状和菜花状/珊瑚状2种形貌,涂层鳞片状部位氧含量要高于菜花状部位的氧含量,涂层的显微硬度的平均值为886 HV,划痕实验表明涂层与基体结合良好,封闭后的涂层明显地提高了镁合金在Hank's溶液中的耐蚀性能.
|
| 关 键 词： | 镁合金 TiO2涂层 生物材料 腐蚀 |
Surface Modification on Magnesium Alloy AM60 and Its Corrosion Behavior in Hank's Solutions |
| |
| ZENG Rong-chang,SUN Zhi-fu,CHEN Jun,DING Li-xin,LIU He-ping. Surface Modification on Magnesium Alloy AM60 and Its Corrosion Behavior in Hank's Solutions[J]. Journal of Chongqing University of Technology(Natural Science), 2007, 0(10) |
| |
| Authors: | ZENG Rong-chang SUN Zhi-fu CHEN Jun DING Li-xin LIU He-ping |
| |
| Abstract: | A TiO2 coating is prepared on as-extruded magnesium alloy AM60 with plasma spraying.Its structure and chemical composition are observed and investigated respectively by using a scanning electron microscopy(SEM) and EDS.The mechanical properties of the coating are analyzed with nano-scratch resistance tests.Potentiodynamic electrochemical tests are applied to study the corrosion behaviors.The experimental results demonstrate that TiO2 coating has a porous structure with a flake and cauliflower or coral morphology,with oxygen content in the flake area higher than in the cauliflower area.The average micro hardness reaches 886 HV and scratch tests show that the coating combines well with basal body; and the corrosion resistance of AM60 with sealed coating is significantly improved. |
| |
| Keywords: | magnesium alloy TiO2 coating biomaterial corrosion |
| 本文献已被 CNKI 等数据库收录！ |
|
