期刊
WEAR
卷 380-381, 期 -, 页码 42-51出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.wear.2017.03.006
关键词
UHMWPE; Friction and wear; Surface roughness; Transfer film
The effects of introducing glass fiber (GF) and/or carbon fiber (CF) filler materials on the friction and wear characteristics of ultra-high molecular weight polyethylene (UHMWPE)-based composites were investigated. The composites were evaluated against GCr15 steel under dry and water-lubricated conditions. The goal was to develop an improved material for water-lubricated journal bearings. The friction coefficients of UHMWPE composites were obtained using a pin-on-disc tribometer using sliding speeds ranging from 0.2 to 1.0 m/s, contact pressures from 1.0 to 5.0 MPa, and two counterface roughness values (R-a=0.1 and 0.3 mu m). The samples were lubricated by dropping distilled water onto the sliding surface. To evaluate the wear mechanisms, the morphologies of the worn surfaces were examined by scanning electron microscopy and laser 3D micro-imaging profile measurements. In addition, the elemental distribution and content in the transfer film on the GF/UHMWPE composite surface were measured using an energy-dispersive X-ray spectrometer. The results show that glass fibers could effectively reduce the wear rate of composites. In addition, a hybrid filling of glass and carbon fibers could significantly reduce the friction coefficient under water lubrication and dry conditions. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据