Tribological behaviors of UHMWPE composites with different counter surface morphologies

4th International Conference on Mechanical, Materials and Manufacturing

材料科学;机械制造

Wang, Yanzhen^1 ; Yin, Zhongwei^1 ; Li, Hulin^1 ; Gao, Gengyuan^1

State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, China^1

关键词: Contact pressures;    Friction and wear behaviors;    Friction coefficients;    Morphologies of the worn surfaces;    Pin on disc tribometer;    Profile measurement;    Tribological behaviors;    Water-lubricated journal bearing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/272/1/012022/pdf
DOI  :  10.1088/1757-899X/272/1/012022

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The influence of counter surface morphologies on hybrid glass fiber (GF) and carbon fiber (CF) filled ultrahigh molecular weight polyethylene (UHMWPE) were studied under various contact pressure and sliding speed against GCr15 steel in dry condition. The goals were to investigate the tribological behavior of GF/CF/UHMWPE composite as a kind of water lubricated journal bearing material. The friction and wear behavior of composites were examined using a pin-on-disc tribometer. The morphologies of the worn surface were examined by scanning electron microscopy (SEM) and laser 3D micro-imaging and profile measurement. Generally, the wear rate and friction coefficient of composites increase as the increment of counter surface roughness. The friction coefficient increases firstly and then decrease with an increase in sliding speed and contact pressure for counterface with Ra=0.2 and 3.5 μm, while the friction coefficient decreased for counterface with Ra=0.6 μm.