Combined plasma nitriding and surface texturing approach were conducted on 316 stainless steel to enhance the tribological performance. Five different surfaces (316 substrates, plasma-nitrided 316, surface-textured 316, plasma-nitrided surface-textured 316, and surface-textured plasma-nitrided 316) were investigated. The tribological behaviors were studied using a ball-on-disk rotary tribometer against counterparts of Si3N4 balls in the air and under oil lubrication conditions. The results were analyzed from the aspects of friction coefficient, mass loss, and surface morphology about the tested specimens. The results presented that the frictional properties of the surface of plasma-nitrided surface-textured 316 were optimal under both friction conditions. Under dry friction conditions, the influence of plasma nitriding on mass loss was greater than that of surface texturing. Under oil lubrication conditions, the influence of surface texturing on mass loss was greater than that of plasma nitriding, and the processing sequence of surface texturing and plasma nitriding had little effect on the mass loss. The better wear resistance of plasma-nitrided surface-textured 316 resulted from the following aspects: first, the nitriding layer improved the surface hardness of the material. Secondly, the surface texture can capture the debris under dry friction conditions and provide continuous lubrication under oil lubrication condition.

中文翻译：

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组合等离子渗氮和表面织构提高 316 不锈钢的摩擦性能

对 316 不锈钢进行了等离子渗氮和表面织构相结合的方法，以提高摩擦学性能。研究了五种不同的表面（316 衬底、等离子体氮化 316、表面纹理 316、等离子体氮化表面纹理 316 和表面纹理等离子体氮化 316）。使用圆盘旋转摩擦仪对 Si 的对应物研究摩擦学行为3ñ4球在空气和油润滑条件下。从被试件的摩擦系数、质量损失、表面形貌等方面对结果进行了分析。结果表明，在两种摩擦条件下，等离子渗氮表面织构 316 表面的摩擦性能都是最佳的。在干摩擦条件下，等离子渗氮对质量损失的影响大于表面织构。在油润滑条件下，表面织构对质量损失的影响大于等离子渗氮，表面织构和等离子渗氮的加工顺序对质量损失影响不大。等离子渗氮表面织构316更好的耐磨性源于以下几个方面：首先，氮化层提高了材料的表面硬度。其次，表面纹理可以在干摩擦条件下捕获碎屑，并在油润滑条件下提供持续润滑。