Effects of Surface Friction and Lubricating Behavior on Fatigue Damage Mechanisms in Point Contact

被引：0

作者：

Yang, Feng ^{[1
]}

Xu, Chuang ^{[1
]}

Zhang, Yu-Zheng ^{[1
]}

机构：

[1] Xuzhou Inst Technol, Sch Mech & Elect Engn, Xuzhou 221018, Jiangsu, Peoples R China

来源：

MECHANICS AND MATERIALS SCIENCE | 2018年

关键词：

Stribeck Curves; Point Contact; Friction; STRIBECK CURVE;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

To investigate the friction behavior of point contact operating, the friction tests were performed on a ball-on-disk rotating tribometer, which consisted of a rotating disk sliding under a bearing steel ball. The variation of friction coefficient and wearing capacity for the ball-on-disk pairs with different loading and velocity under 150# and 320# lubricant oil were presented combining with morphology of wear grooves. The result shown that the calculated point-contact stress from 2395MPa to 3379MPa for a wide range of operation conditions. Stribeck curves had the similar shape and only shifted depending strongly on viscosity of the lubricating oil. and the thickness of the surface oil film gradually increased with the rise of the velocity from 200 r/min to 1000r/min, and the mode of lubricant changed from boundary lubrication to mixed or hydrodynamic lubrication regime where slightly metal-metal contact occurs.

引用

页码：301 / 307

页数：7

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