The Effect of Textured Surfaces with Different Roughness Structures on the Tribological Properties of Al Alloy

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• 作者：Ming-Kai Tang ; Xing-Jiu Huang ; Jin-Gui Yu…
• 关键词：friction mechanism ; laser marking ; roughness structure ; textured surface ; tribological properties
• 刊名：Journal of Materials Engineering and Performance
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：25
• 期：10
• 页码：4115-4125
• 全文大小：2,528 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Characterization and Evaluation Materials
  Materials Science
  Tribology, Corrosion and Coatings
  Quality Control, Reliability, Safety and Risk
  Engineering Design
  
• 出版者：Springer New York
• ISSN：1544-1024
• 卷排序：25

文摘

In this study, four kinds of roughness structures were constructed on the Al alloy surface using laser marking technology. The tribological properties of the surfaces under the condition of dry friction were carefully investigated. The results indicate that the fabricated surfaces have similar compositions. The hardness of surfaces can be improved after the laser surface treatment. Besides, the texturing of surfaces can efficiently reduce friction and improve friction resistance. However, the friction-reducing mechanisms are not the same. The surfaces with lined and grating grooves can remove wear debris away from the interfaces between steel balls and surfaces, while those with irregular protrusions and micro-orifices array would be able to trap wear debris in the microstructure. Furthermore, due to the different friction mechanisms of distinct roughness structures, their friction-reducing performances are greatly affected by the actual friction conditions (sliding speed and load), which offers a guide for constructing a specific roughness structure on the Al alloy surface to improve its friction resistance efficiently.