Laser texturing of piston ring for tribological performance improvement

被引：0
|
作者：
Rita Ferreira
Óscar Carvalho
Luís Sobral
Sandra Carvalho
Filipe Silva
机构：
[1] University of Minho,CMEMS–UMinho
[2] LABBELS–Associate Laboratory,CEMMPRE–Center for Mechanical Engineering, Materials and Processes
[3] University of Coimbra,MAHLE, Componentes de Motores, S.A.
[4] Núcleo Industrial de Murtede,undefined
来源：
Friction | 2023年 / 11卷
关键词：
piston ring; surface texture; friction; wear;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The radial surface coating layer of compression piston rings is used to improve their wear resistance during the internal combustion engine operation. However, at top dead centers, the friction coefficient of the piston ring-cylinder liner pair is detrimental to the engine’s tribological performance. In this work, dimples with different texture dimensions and densities were tested in a home-developed tribometer. The friction coefficient was measured for all samples, and for those with the best results, their wear resistance was assessed. The texture with an aspect ratio of 0.25 and a density area of 15% reported the best tribological results.
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页码：1895 / 1905
页数：10
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