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| Research progress on the influence of friction components on the properties of copper-based friction materials |
| WU Shen1，SI Qufan1，JIANG Aiyun2，DONG Zhenzhen1，LIU Jianxiu1，ZHANG Qian3 |
| （1. Zhengzhou University of Light Industry, Zhengzhou 450002, China; 2. Huanghe S & T University, Zheng‐
zhou 450006, China; 3. Wuhan College of Arts and Science, Wuhan 430345,China） |
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Abstract The braking system is the key and core component of the safe operation of high-speed train. Copperbased
powder metallurgy friction material has become the preferred material for high-speed train brake plate because
of its characteristics of uniform structure, high wear resistance, high hardness and stable friction coefficient,
and can give full play to the advantages of matrix material, friction component and lubrication component and their
synergies. With the continuous increasement of train speed, the temperature of friction braking has become higher
and higher, which puts forward higher requirements on the high temperature stability and oxidation resistance of
friction materials. This paper primarily discusses the effects of the types of friction components and adding methods
on the structure and friction properties of copper-based powder metallurgy friction materials, and the bonding
effect between friction components and matrix and the friction and wear mechanism are summarized and reviewed.
The future development trend of copper-based powder metallurgy friction materials is prospected.
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Received: 27 February 2023
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2024, Vol. 34 
