**4. Conclusions**

In this work, surface texturing of ISO 5832-1 stainless steel samples was carried out using an optical fiber Yb laser. The effect of the laser pulse frequency on the tribological behavior of the treated steel was evaluated by ball-cratering wear tests and sliding wear tests using a nanotribometer. The wear volume determined from the ball-cratering wear test points out that the laser-textured surfaces were more resistant to wear, presenting lower wear volumes than the untreated material. The friction coefficient decreased after laser texturing likely due to the increased surface hardness of the laser-treated samples as revealed by Vickers microhardness measurements. This effect was observed for the wear tests conducted with the ball-cratering apparatus and the nanotribometer. The laser texturing process did not impart any cytotoxicity to the ISO 5832-1 samples, preserving the biocompatibility of the pristine surface.

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Evaluation of the Biotribological Behavior and Cytotoxicity of Laser-Textured ISO 5832-1…

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