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首页> 外文期刊>CERAMICS INTERNATIONAL >A comparative study of the corrosion performance of titanium (Ti), titanium nitride (TiN), titanium dioxide (TiO2) and nitrogen-doped titanium oxides (N-TiO2), as coatings for biomedical applications
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A comparative study of the corrosion performance of titanium (Ti), titanium nitride (TiN), titanium dioxide (TiO2) and nitrogen-doped titanium oxides (N-TiO2), as coatings for biomedical applications

机译：钛（Ti），氮化钛（TiN），二氧化钛（TiO2）和氮掺杂的二氧化钛（N-TiO2）作为生物医学应用涂层的腐蚀性能的比较研究

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摘要

The performance of four titanium coatings, namely, Ti, TiN, TiO2, and N-TiO2 was assessed in terms of their surface properties and electrochemical corrosion in simulated body fluid in relation to their medical applications. Ti, TiN, TiO2, and N-TiO2 coatings were deposited onto stainless steel substrates by a plasma surface alloying technique. Morphology, composition, and structure were investigated by SEM, GDOES, and XRD. Corrosion resistance results indicated that Ti, TiN, TiO2, and N-TiO2 coatings could achieve higher corrosion polarization resistance and a more stable corrosion potential in the SBF environment than the uncoated stainless steel substrate SS316L. In comparison with the Ti, TiN, and TiO2 coatings, the N-TiO2 coating exhibited superior corrosion resistance. This resistance may be attributed to the multilayered structure of the coating (an outer oxidative layer and an inner diffusion zone of Ti and N), which can hinder the diffusion of reactive ions. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
机译：评估了四种钛涂层的性能，即Ti，TiN，TiO2和N-TiO2的表面性能和模拟体液中与医疗应用相关的电化学腐蚀，从而评估了它们的性能。通过等离子表面合金化技术将Ti，TiN，TiO2和N-TiO2涂层沉积到不锈钢基底上。通过SEM，GDOES和XRD研究了形态，组成和结构。耐腐蚀性结果表明，与未涂层的不锈钢基材SS316L相比，Ti，TiN，TiO2和N-TiO2涂层在SBF环境中可以实现更高的耐腐蚀性，更稳定的腐蚀电位。与Ti，TiN和TiO2涂层相比，N-TiO2涂层具有优异的耐腐蚀性。该电阻可以归因于涂层的多层结构（外部氧化层以及Ti和N的内部扩散区），这可能会阻碍反应性离子的扩散。 （C）2015 Elsevier Ltd和Techna Group S.r.l.版权所有。

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