In situ observation of microwedge effect on liquid lubrication

Sy Wei Lo*, Bo Qi Zhou, Ching Feng Fang, Yu Sheng Lu


研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)


The influence of the minute elastic deformation of tool surface, named the "microwedge," on the asperity crushing in liquid lubrication is investigated experimentally. The microwedge plays a role so dominant that although increasing the average velocity of the lubricant can alleviate the asperity deformation; such efforts will be overwhelmed by the microwedge effect if the relative sliding velocity between tool and workpiece is also enhanced concurrently. For all roughness patterns, the asperities show multidirectional expansions of the contact region; an important feature of the microwedge effect. The microwedge effect also creates distributions of surface separation and hydrodynamic pressure neither expected nor explainable by the other models.

頁(從 - 到)690-696
期刊Journal of Tribology
出版狀態已發佈 - 2004 十月 1

ASJC Scopus subject areas

  • 材料力學
  • 機械工業
  • 表面和介面
  • 表面、塗料和薄膜


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