In Vitro Corrosion Degradation Behaviour of Mg-Ca Alloy in the Presence of Albumin

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• 作者：C.L.LiuX.M.ZhangY.J.WangW.J.HuangR.Z.ZengPaul K.Chu
• 会议时间：2012-09-16
• 关键词：A.Magnesium ; C.Biocompatibility ; C.Biodegradability ; C.Corrosion
• 作者单位：C.L.Liu(School of Materials Science and Engineering,Chongqing University of Technology,Chongqing 400050,China;Department of Physics and Materials Science,City University of Hong Kong,Tat Chee Avenue,Kowloon,Hong Kong,China)X.M.Zhang,W.J.Huang,R.Z.Zeng(School of Materials Science and Engineering,Chongqing University of Technology,Chongqing 400050,China)Y.J.Wang(School of Applied Science and Technology,Chongqing Institute of Technology,Chongqing 400050,China)Paul K.Chu(Department of Physics and Materials Science,City University of Hong Kong,Tat Chee Avenue,Kowloon,Hong Kong,China)
• 母体文献：第十三届全国青年腐蚀与防护科技论文讲评会暨第十一届中国青年腐蚀与防护研讨会论文集
• 会议名称：第十三届全国青年腐蚀与防护科技论文讲评会暨第十一届中国青年腐蚀与防护研讨会
• 会议地点：武汉
• 主办单位：中国腐蚀与防护学会
• 语种：chi

摘要

The in-vitro degradation behaviour of Mg-Ca alloy was studied in the presence of albumin by in-situ observation,hydrogen evolution method and various electrochemical techniques.The corrosion and hydrogen evolution rates decreased and the formation of filiform corrosion induced by Cl- was also significantly inhibited due to the adsorption of albumin molecule.Moreover,the higher the concentration of albumin,the higher is the inhibitive effect.The EIS results further show that addition of albumin enhanced the charge transfer resistance and film resistance at the open-circuit potential.The synergistic effect of the negatively charged adsorbed albumin molecule and OH- has been discussed.