Abstract This study proposes a novel, cost-efficient and productive technique, Tribo-blast, to tailor surface topography for tribological purposes. Tribo-blast is based on mask-less micro-blasting with spherical or angular particles and precisely controlled process parameters. This approach enables rapid fabrication of μ-pockets (5–50 μm) on free-form surfaces comprised of any material. A particle with a new 3D geometry—a spinning top—is proposed to match the shape and dimensions of the irregular craters formed in a metallic target by an angular particle at the normal impact angle. The results were experimentally validated on stainless steel 316L, Co–Cr–Mo and Ti–6Al–4V alloys. A simple analytical routine allowed for control over the size, area, concentration and homogeneity of randomly distributed angular and spherical μ-pockets with

中文翻译：

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通过受控的固体颗粒撞击为摩擦学目的定制表面形貌

摘要 本研究提出了一种新颖、经济且高效的技术 Tribo-blast，以针对摩擦学目的定制表面形貌。Tribo-blast 基于球形或角形颗粒的无掩模微喷砂和精确控制的工艺参数。这种方法可以在由任何材料组成的自由曲面上快速制造 μ 袋（5-50 微米）。提出了一种具有新 3D 几何形状的粒子 - 陀螺 - 以匹配在正常撞击角度下由角状粒子在金属目标中形成的不规则陨石坑的形状和尺寸。结果在不锈钢 316L、Co-Cr-Mo 和 Ti-6Al-4V 合金上得到了实验验证。一个简单的分析程序允许控制随机分布的角形和球形 μ 口袋的大小、面积、浓度和均匀性