Effect of Surface Roughness on Lubrication Performance of Environment-friendly Lubricants

Abstract

Abstract: The effects of SiO₂ surface roughness on the wettability and lubrication properties of environment-friendly lubricants squalane and pentaerythritol oleate were investigated by contact angle measuring instrument and micro-friction and wear testing machine. The results showed that with the increase of the surface roughness, the larger the contact angle between the lubricating liquid and the sample surface, the worse the wetting effect was. In squalane lubrication medium, the rougher the surface of the sample, the larger the friction coefficient between SiO₂-GCr15 is, and the bigger the wear volume of the sample. Besides, the friction coefficient between the friction pairs first increased and then slowly decreased with time, and tended to be stable finally. In pentathritol oleate medium, with the increase of the specimen roughness, the friction coefficient between the friction pairs turned into smaller after 12 minutes. As the roughness of the specimen increased, the wear volume of the specimen surface also decreased.

Key words: roughness, friction coefficient, wettability

CLC Number:

TH117.2

CAI Fada, PENG Wenzhu. Effect of Surface Roughness on Lubrication Performance of Environment-friendly Lubricants[J]. Journal of Qujing Normal University, 2023, 42(6): 8-14.

References

[1]康家明,宋鹏云.偶件表面粗糙度对PTFE材料摩擦磨损性能的影响[J].润滑与密封,2018,43(8):87-92.
[2]周云泽,王伟,胡兆稳,等.盘式制动器复模态摩擦耦合制动稳定性分析[J].机械设计与制造,2022,373(3):134-138.
[3]韩彦龙,田辉,刘迎娟,等.摩擦带弹性滑动率与摩擦损失效率计算及实验[J].机械设计与制造,2017(3):64-67.
[4]沈锦龙,许吉敏,焦云龙,等.考虑界面粗糙度动态变化的点接触弹流润滑特性研究[J].摩擦学学报,2021,41(1):47-55.
[5]刘麟,杨超.润滑条件下铜锌合金表面粗糙度对磨损率的影响[J].摩擦学学报,2017,37(5):625-630.
[6]陈汇龙,张培林,孙冬冬,等.表面粗糙度对液膜润滑动压型机械密封性能的影响[J].排灌机械工程学报,2018,36(1):1-11.
[7]JIA J,YANG G,ZHANG C,et al.Effects of magnetic ionic liquid as a lubricant on the friction and wear behavior of a steel-steel sliding contact under elevated temperatures[J].Friction,2021,9(1):61-74.
[8]LIANG G,SCHMAUDER S,LYU M,et al.An investigation of the influence of initial roughness on the friction and wear behavior of ground surfaces[J]. Materials, 2018,11(2):237.
[9]李文忠,阎宁,邓飞,等.水润滑下工程塑料的摩擦磨损性能研究现状[J].化工新型材料,2022,50(1):30-33.
[10]LIANG Y,GAO D,CHEN B,et al.Friction and wear study on friction pairs with a biomimetic non-smooth surface of 316L relative to CF/PEEK under a seawater lubricated condition[J].Chinese Journal of Mechanical Engineering,2019,32(1):1-14.
[11]田世新,马先贵,张会臣.钢铜摩擦副表面粗糙度、硬度对摩擦磨损性能的影响[J].沈阳工业大学学报,1991,13(3):33-41.
[12]王秋凤,王鸿灵,王云霞,等.表面粗糙度对UHMWPE微动摩擦磨损性能的影响[J].摩擦学学报,2015,35(4):441-447.
[13]黄建龙,吴建宏,党兴武.表面粗糙度对GCr15/35CrMo摩擦副摩擦磨损特性的影响[J].表面技术,2013,42(4):62-64.
[14]贾秀璨,罗勇,王晓坡.DME或R600a与角鲨烷为工质对的吸收式制冷循环性能分析[J].制冷学报,2022,43(2):62-69.
[15]潘伶,高诚辉.分子动力学模拟剪切速度对纳米间隙中角鲨烷界面滑移的影响[J].化工学报,2016,67(4):1440-1447.
[16]张晨辉,唐福伟,金一丰,等.液相色谱-质谱法分析季戊四醇油酸酯[J].理化检验:化学分册,2012,48(2):140-143.