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首页> 外文期刊>Journal of Materials Engineering and Performance >Effects of Duplex Nitriding and TiN Coating Treatment on Wear Resistance, Corrosion Resistance and Biocompatibility of Ti6Al4V Alloy
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Effects of Duplex Nitriding and TiN Coating Treatment on Wear Resistance, Corrosion Resistance and Biocompatibility of Ti6Al4V Alloy

机译：双相氮化和锡涂层处理对Ti6Al4V合金耐磨性，耐腐蚀和生物相容性的影响

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摘要

Ti6Al4V alloy substrates were nitrided at 900 degrees C. TiN coatings were then deposited on the nitrided substrates using a closed-field unbalanced magnetron sputtering system. The microstructure, hardness and adhesion properties of the TiN-N-Ti6Al4V substrates were evaluated and compared with those of an untreated Ti6Al4V sample, a nitrided Ti6Al4V sample and a TiN-coated Ti6Al4V sample, respectively. The tribological properties of the various samples were investigated by means of reciprocating sliding wear tests performed in 0.9 wt.% NaCl solution against 316L, Si3N4 and Ti6Al4V balls, respectively. In addition, the corrosion resistance was evaluated using potentiodynamic polarization tests. Finally, the biocompatibility of the samples was investigated by observing the attachment and growth of purified mouse leukemic monocyte/macrophage cells (Raw 264.7) on the sample surface after culturing periods of 24, 72 and 120 h, respectively. Overall, the results showed that the duplex nitriding/TiN coating treatment significantly improved the tribological, anti-corrosion and biocompatibility properties of the original Ti6Al4V alloy.
机译：将Ti6Al4V合金基板在900℃下氮化氮。然后使用封闭场不平衡磁控溅射系统沉积在氮化基板上的锡涂层。评价锡-N-Ti6A14V底物的微观结构，硬度和粘附性，并与未处理的Ti6Al4V样品，氮化Ti6Al4V样品和锡涂覆的Ti6Al4V样品进行比较。通过在0.9重量％的往复式的滑动磨损试验中进行各种样品的摩擦学性质，分别对316L，Si3N4和Ti6Al4V球进行0.9重量％。％NaCl溶液。此外，使用电位动力学测试评估耐腐蚀性。最后，通过在培养24,72和120h的时间后观察样品表面上的纯化的小鼠白细胞上单核微孔/巨噬细胞（RAW 264.7）的附着和生长来研究样品的生物相容性。总体而言，结果表明，双相氮化/锡涂层处理显着提高了原始Ti6Al4V合金的摩擦学，抗腐蚀和生物相容性。

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