Effect of Speed on Friction and Wear Properties of Cu-based Material

DOI

10.2991/mseee-17.2017.57How to use a DOI?

Keywords

powder metallurgy, Cu-based friction material, friction and wear, friction coefficient.

Abstract

According to the performance requirements of brake friction plate in the high speed train, Cu-based friction material was prepared by powder metallurgy technology. The friction components are mainly atomized Fe, a small amount of Cr and SiO2. And a high coefficient is caused by the friction resistance of these particles in the friction surface. The graphite forms a layer of solid lubricating film on the friction surface to ensure a stable friction coefficient under the all kinds of friction conditions. The compressive strength of sintered samples were tested by DDL50 Electronic Universal Testing Machine, and the property of dry friction and wear were tested by vertical universal friction-wear testing machine. The wearing morphologies were observed by SEM and the effects of friction speed on wear rate and friction coefficient were analyzed. The result shows that Cu-based containing larger natural flake graphite and smaller Fe particles has good friction wear performance. And when the load varying from 50N to 150N at the speed of 600r/min, the friction coefficient is about 0.4~0.48, the coefficient varies little and is very stable. The main wear mechanisms are abrasive wear and oxidation wear.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wen Pei
AU  - Zhenxin Duan
AU  - Xuebo Gong
AU  - Jing Zeng
AU  - Hua Chen
PY  - 2017/08
DA  - 2017/08
TI  - Effect of Speed on Friction and Wear Properties of Cu-based Material
BT  - Proceedings of the 2017 International Conference on Material Science, Energy and Environmental Engineering (MSEEE 2017)
PB  - Atlantis Press
SP  - 309
EP  - 314
SN  - 2352-5401
UR  - https://doi.org/10.2991/mseee-17.2017.57
DO  - 10.2991/mseee-17.2017.57
ID  - Pei2017/08
ER  -