In vitro corrosion and biocompatibility of phosphating modified WE43 magnesium alloy  

磷化修饰WE43镁合金的体外生物相容性及耐腐蚀性能(英文)

作　　者：叶成红[1] 奚廷斐[1,2] 郑玉峰[1,3] 王淑琴[2] 李扬德 

机构地区：[1]北京大学前沿交叉学科研究院生物医用材料与组织工程研究中心,北京100871 [2]温州医学院信息与工程学院,温州325035 [3]北京大学工学院先进材料与纳米技术系,北京100871 [4]东莞宜安科技股份有限公司,东莞523000

出　　处：《Transactions of Nonferrous Metals Society of China》2013年第4期996-1001,共6页中国有色金属学报（英文版）

基　　金：Project(2011AA030103) supported by the National High-tech Research Program of China;Project(201001C0104669453) supported by the Guangdong Innovation R&D Team Project,China

摘　　要：Phospahting coated WE43 magnesium alloy was prepared by an immersion method. The microstructure, corrosion resistance and biocompatibility of the coated alloy were investigated. Scanning electron microscopy （SEM） and X-ray diffraction （XRD） were used to examine the microstructure and the composition of the coated alloy. The corrosion resistance was studied by means of potentiodynamic polarization method and the biocompatibility of the surface modified WE43 alloy was evaluated by （3-（4,5）-Dimethylthiazol-2, yl）-2,5-diphenyltetrazolium bromide （MTT） and hemolysis test. The results show that the phosphating coating can enhance the corrosion resistance of WE43 alloy and can be a good candidate to increase the biocompatibility of WE43 alloy.通过浸泡方式制备磷化修饰WE43镁合金,利用扫描电镜(SEM)、X射线衍射(XRD)等方法表征修饰后镁合金的表面微观结构,通过电化学方法测试材料的抗腐蚀性能,同时,利用MTT法和溶血率试验法比较了修饰和未修饰镁合金材料的生物相容性。结果表明,磷化修饰能大幅度地提高WE43镁合金的耐腐蚀性及生物相容性。

关 键 词：magnesium alloy phosphating coating corrosion resistance BIOCOMPATIBILITY 

分 类 号：TG174.4[金属学及工艺—金属表面处理]