Journal
SURFACE & COATINGS TECHNOLOGY
Volume 431, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2021.128044
Keywords
Volcano-shaped laser texture; PVD coating; Friction and wear; Starved lubrication
Funding
- National Natural Science Foundation of China [52075225]
- Science and Technology Planning Social Development Project of Zhenjiang City (CN) [ZD2020004]
- Post-doctoral Foundation of Jiangsu Province [2019K233]
- Basic Science Project of Colleges and Universities of Jiangsu Province [21KJB460012]
- Science and Technology Project of Nantong City (CN) [JC2021099]
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This study investigates the friction and wear performance of a novel volcano-shaped textured PVD coating and explores the influence mechanism of volcano-shaped texture on the tribological behavior of the coated surface. The results show that a volcano-shaped texture with suitable diameters and area ratios can lower friction coefficient and reduce adhesive wear, while a texture with larger area ratios increases friction. This texture shows potential for friction control.
This study aims to investigate friction and wear performance of a novel volcano-shaped textured PVD coating, hoping to find the influence mechanism of volcano-shaped texture on the tribological behavior of textured coated surface. The volcano-shaped texture was fabricated on the sample surface by laser, and then PVD coating was deposited. For samples with different texture diameters or texture area ratios, reciprocating pin-on-disk wear tests were conducted to study tribological properties. After tests, wear topographies of samples and counter pins were observed to analyze wear details. The results showed volcano-shaped texture with suitable diameters and area ratios was conducive to lowering friction coefficient and reducing adhesive wear. The optimal texture diameter and area ratio were 310 mu m and 25%, respectively. Meanwhile, the texture with large area ratios increased friction. These results indicated this texture's potential for friction control. Finally, the influence mechanism of volcano-shaped texture was proposed.
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