Abstract This study investigates the structural and tribotechnological properties of a 316L stainless steel sample additively manufactured by the laser powder bed fusion (LPBF) technique. The tribotechnological tests have been performed on the top surface in the prepared samples. Structural analysis at the top and the side surface shows that surface textures (100), (111) and (001) are strongly built. The scratch test is performed at three different loads to assess the effect on penetration depth and friction response, wherein some deformation is observed only at the highest load. These loads are further used for the ball-on-disk dry sliding tests to quantify the changes resulting from linear/continuous motion. The obtained values of sliding friction and wear are slightly higher than the scratch test results, but the overall effect is similar. The role of the peculiar microstructural feature of the LPBF samples on wear mechanism is described. Also, the influence of pore and tribo-film formation on the wear mechanism is validated by the Raman analysis. The comparison of tribotechnological properties of additive manufactured and conventionally manufactured (cold rolled) samples shows significant results in the additive samples.

中文翻译：

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激光粉末床融合技术制备的增材制造316L不锈钢样品的抗划伤和耐磨性

摘要 本研究研究了通过激光粉末床融合 (LPBF) 技术增材制造的 316L 不锈钢样品的结构和摩擦技术特性。已在制备的样品的顶面上进行了摩擦技术测试。顶部和侧面的结构分析表明，表面纹理 (100)、(111) 和 (001) 构建得非常牢固。划痕测试在三种不同的负载下进行，以评估对穿透深度和摩擦响应的影响，其中一些变形仅在最高负载下观察到。这些载荷进一步用于球盘干滑动测试，以量化线性/连续运动引起的变化。获得的滑动摩擦和磨损值略高于划痕测试结果，但总体效果相似。描述了 LPBF 样品的特殊微观结构特征对磨损机制的作用。此外，拉曼分析验证了孔隙和摩擦膜形成对磨损机制的影响。增材制造和常规制造（冷轧）样品的摩擦技术特性的比较显示了添加剂样品的显着结果。