利用激光粉末床熔融（L-PBF）制造的表面纹理提高 AISI 316L 在干燥、水润滑和油润滑滑动条件下的摩擦和磨损性能

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2024-08-16 DOI:10.1016/j.triboint.2024.110135

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引用次数: 0

摘要

本研究旨在考察表面纹理对材料在不同滑动条件（干、水和油）下的摩擦和磨损性能的影响。采用激光粉末床熔融（L-PBF）技术制备了具有六边形、圆形、方形和菱形几何形状的 AISI 316 L 样品，并采用铸造和 L-PBF 技术制备了无纹理样品。由于快速加热-冷却，L-PBF 样品显示出较高的峰值强度，并且布拉格角发生了微小偏移。与铸造样品相比，L-PBF 样品的硬度更高，因为它们具有更精细的微观结构。纹理样品由于能截留磨损碎屑，因此具有更好的摩擦学性能。由于应力集中，带有尖角的样品摩擦力更大。油润滑条件下的摩擦性能最高。

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Increasing the friction and wear performance of AISI 316L under dry, aqueous and oil lubricated sliding conditions with surface textures fabricated by laser-powder bed fusion (L-PBF)

In this study, it is aimed to examine the effects of surface textures on the friction and wear performance of materials under different sliding conditions (dry, aqueous and oil). AISI 316 L samples with hexagonal, circle, square and rhombus geometries were produced using Laser Powder Bed Fusion (L-PBF) and non-textured samples were produced using casting and L-PBF. L-PBF samples showed high peak intensity due to rapid heating-cooling and small shifts in Bragg angles occurred. L-PBF samples had higher hardness than casting samples since they had a finer microstructure. Textured samples exhibited better tribological performance because they trapped wear debris. A higher friction was observed in samples with sharp corners due to stress concentrations. The highest tribological performance occurred in oil-lubricated conditions.

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.