@Article{, title={Effect of Uric acid Level on the Corrosion Behavior of SS 316L and Co-Cr-Mo Used in Implant Applications تأثیر مستوى حامض الیوریك على السلوك التأكلي للصلب المقاوم للصدأ 316L وسبیكة Co-Cr-Mo المستخدمة في تطبیقات الزروع الجراحیة}, author={Zina Noori Abdulhameed and Rana A. Majed and Kahtan K. Al-Khazraji}, journal={Engineering and Technology Journal مجلة الهندسة والتكنولوجيا}, volume={31}, number={17 Part (A) Engineering}, pages={3382-3390}, year={2013}, abstract={In this study electrochemical behaviors of SS 316L and Co-Cr-Mo alloys werestudied using electrochemical method by potentiostat in simulated body fluid (SBF) atpH=7.4 and 37oC in absence and presence of 7 and 12 g/dL uric acid which causesarthritis. Corrosion parameters for two implants were calculated which includecorrosion potentials (Ecorr), corrosion current densities (icorr), cathodic and anodic Tafelslops (bc & ba), polarization resistance (Rp) and corrosion rates (CR).Increases uric acid in human body gives decreasing in corrosion rate for SS 316Lbecause of formation organometallic complexes between acid molecules and releasedmetal ions, but an increase in corrosion rate for Co-Cr-Mo alloy because of low affinityof cobalt ions to formation organometallic complexes. General comparison betweentwo implants shows that the Co-Cr-Mo alloy has lower corrosion rate than SS 316L inthe same conditions due to Cr content. This means that using Co-Cr-Mo alloy betterthan SS 316L as bioimplant.

} }