The effectiveness of dimple surface texturing via picosecond pulsed laser processing for reducing wear loss was investigated using two types of titanium alloys, β-type Ti–29Nb–13Ta-4.6Zr (TNTZ) and α+β-type Ti–6Al–4V ELI (Ti64). The two alloys showed different modes of wear against zirconia. As the sliding distance increased, the wear loss was observed to increase for Ti64, but not necessarily for TNTZ. The wear debris of Ti64 acted as abrasive particles, but that of TNTZ easily adhered to the surface, and the adhered wear debris turned into a hard wear-protective layer. Therefore, the dependence of wear loss on the sliding distance for these two titanium alloys could be attributed to the difference in the roles of wear debris between each titanium alloy and zirconia. Further, depending on this difference in wear mode, the effect of dimple surface texturing on the wear was found to be different in Ti64 and TNTZ. As the dimples can trap the wear debris, they are effective for reducing wear in Ti64 but are detrimental in TNTZ.

使用两种类型的钛合金，β 型 Ti–29Nb–13Ta-4.6Zr (TNTZ) 和 α+β 型 Ti–6Al–4V ELI，研究了通过皮秒脉冲激光加工的凹坑表面纹理化对减少磨损损失的有效性(Ti64)。这两种合金对氧化锆显示出不同的磨损模式。随着滑动距离的增加，观察到 Ti64 的磨损损失增加，但 TNTZ 不一定。Ti64的磨屑起到磨粒的作用，而TNTZ的磨屑容易粘附在表面，粘附的磨屑变成坚硬的耐磨保护层。因此，磨损损失对这两种钛合金滑动距离的依赖性可归因于每种钛合金和氧化锆之间磨损碎屑的作用不同。此外，根据磨损模式的这种差异，发现凹痕表面纹理对磨损的影响在 Ti64 和 TNTZ 中是不同的。由于凹坑可以捕获磨屑，因此它们对减少 Ti64 的磨损有效，但对 TNTZ 不利。