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Corrosion Resistance Investigation of Titanium Alloy as Tissue Engineered Bone Implant

机译:组织工程骨植入钛合金的耐蚀性研究

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This work used electrochemical impedance measurements and anodic polarisation to study the corrosion susceptibility of Ti, Ti–6Al–4V and TZNT in a buffered saline solution (PBS). The impedance characterization model was obtained under open-circuit conditions and was a double-oxide film model consisting of an inner-barrier oxide layer and a porous, outer layer. Low-pitting potentials were obtained for TZNT. The property of the outer layer depended on the presence of phosphate anions in the saline-buffered solution (SBS) and the electrode material. The typical, low resistances of the porous layers generated on TZNT with phosphate anions ranged from 10 to 70 Ω cm2. Ti, TZNT and Ti–6Al–4V all displayed much higher porous layer resistances without phosphate anions.
机译:这项工作使用电化学阻抗测量和阳极极化来研究Ti,Ti-6Al-4V和TZNT在缓冲盐溶液(PBS)中的腐蚀敏感性。阻抗特征模型是在开路条件下获得的,它是由内部势垒氧化物层和多孔外部层组成的双氧化物膜模型。 TZNT获得了低点蚀电位。外层的性能取决于盐缓冲溶液(SBS)和电极材料中磷酸根阴离子的存在。在TZNT上用磷酸根阴离子生成的多孔层的典型低电阻范围为10至70Ωcm2。 Ti,TZNT和Ti-6Al-4V均显示出更高的多孔层电阻,而无磷酸根阴离子。

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