镁合金AZ31表面磷酸盐涂层在人工血浆中的降解行为
Degradation Behavior of Magnesium Alloy AZ31 with Phosphate Conversion Film in Artificial Plasma
摘 要
采用浸涂法在镁合金AZ31表面上制备了磷酸盐涂层,采用浸泡腐蚀、电化学等方法研究了涂层在人工血浆溶液中的腐蚀速率和降解行为,利用电子探针(EPMA)测定涂层的表面形貌及化学成分.结果表明,磷酸盐涂层使镁合金AZ31在人工血浆中的腐蚀速率明显降低,受腐蚀区域缩小,腐蚀程度降低.
人工血浆
降解
磷酸盐
magnesium alloy
artificial plasma
degradation
phosphate
Abstract
A phosphate conversion film on magnesium alloy AZ31 was prepared by dipping method.Immersion experiments and electrochemical tests were employed to investigate the degradation and corrosion behavior of the phosphate conversion film in the artificial plasma medium.The surface morphology and composition were analyzed by EPMA (electron probe microanalyzer).The results showed that the corrosion rate of magnesium alloy AZ31 with phosphate conversion film reduced markedly in artificial plasma with smaller corrosion affected area and less corrosion degree.
中图分类号 TG174
所属栏目 试验研究
基金项目 上海市科委重大基础研究项目(11DJ1400302)
收稿日期 2014/7/4
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网络出版日期
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备注李春梅(1981-),工程师,硕士,从事金属材料腐蚀与防护研究.
引用该论文: LI Chun-mei,WEI Zhong-ling,ZHOU Bang-xin. Degradation Behavior of Magnesium Alloy AZ31 with Phosphate Conversion Film in Artificial Plasma[J]. Corrosion & Protection, 2015, 36(5): 461
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参考文献
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【11】GB/T 16886.15-2003医疗器械生物学评价 第15部分:金属与合金降解产物的定性与定量.
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【13】高阳,代明江,向兴华,等.AZ91D镁合金磷酸盐转化膜的制备及性能[J].电镀与涂饰,2010,29(10):32-36.
【2】QATO K,HARRIMAN D,CAO D C,et al.Contemporary outcomes in vascular patients who require preoperative coronary stent[J].Ann Vasc Surg,2013,27(5):646-654.
【3】李玉宝.生物医学材料[M].北京:化学工业出版社,2003.
【4】THIERRY B,TABRIZIAN M.Biocompatibility and biostability of metallic materials:current status and future perspective[J].Journal of Endovascular Therapy,2003,10(4):807-824.
【5】DRACHMAN D E,SIMON D I.Inflammation as a mechanism and therapeutic target for in-stent restenosis[J].Current Atherosclerosis Report,2005,7(1):44-49.
【6】HERMAWAN H,DUBD,MANTOVANI D,et al.Developments in metallic biodegradable stents[J].Acta Biomaterialia,2010(6):1693-1697.
【7】STAIGER M P,PIETAK A M,HUADMAI J.Magnesium and its alloys as orthopedic biomaterials:a review[J].Biomaterials,2006,27(9):1728-1734.
【8】李海燕,李志生,张世珍,等.镁合金的腐蚀与防护研究进展[J].腐蚀与防护,2010,31(11):878-881.
【9】陈振华.镁合金[M].北京:化学工业出版社,2004.
【10】李春梅,卫中领,沈钰,等.镁合金AZ31化学成膜及其耐蚀性研究[J].腐蚀科学与防护技术,2009,21(2):185-187.
【11】GB/T 16886.15-2003医疗器械生物学评价 第15部分:金属与合金降解产物的定性与定量.
【12】李春梅,卫中领,吴森,等.镁合金AZ31表面含硅涂层在人工血浆中的降解行为[J].腐蚀与防护,2014,35(7):675-678.
【13】高阳,代明江,向兴华,等.AZ91D镁合金磷酸盐转化膜的制备及性能[J].电镀与涂饰,2010,29(10):32-36.
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