Abstract Corrosion and tribocorrosion behaviour of modified Ti surfaces through thermochemical treatments has been studied. Electrochemical Impedance Spectroscopy (EIS) and reciprocating sliding tests using a ball-on-plate tribometer under 1 N load and alumina as counter-material were used to evaluate the influence of Nb and Mo on titanium corrosion and tribocorrosion properties. Ti-Nb and Ti-Mo surfaces exhibited better anticorrosive properties than CP-titanium. Under tribological action the modified Ti surfaces showed similar coefficient of friction and lower tendency to corrosion compared to CP-Ti. Furthermore, Nb diffusion increased the repassivation rate with respect to Ti and Ti-Mo surfaces due to its stable passive film.

中文翻译：

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通过扩散处理设计的用于生物医学应用的 β 型 Ti-Nb 和 Ti-Mo 表面的腐蚀和摩擦腐蚀行为

摘要 研究了热化学处理改性Ti表面的腐蚀和摩擦腐蚀行为。电化学阻抗谱 (EIS) 和在 1 N 负载下使用球盘摩擦计和氧化铝作为反材料的往复滑动试验被用来评估 Nb 和 Mo 对钛腐蚀和摩擦腐蚀性能的影响。Ti-Nb 和 Ti-Mo 表面表现出比 CP-钛更好的防腐性能。在摩擦学作用下，与 CP-Ti 相比，改性 Ti 表面显示出相似的摩擦系数和较低的腐蚀倾向。此外，由于其稳定的钝化膜，Nb 扩散增加了 Ti 和 Ti-Mo 表面的再钝化率。