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| Effect of Copper Powders on Properties of Cu-basedFriction Material |
| WANG Ye1 YAN Qingzhi1** ZHANG Xiaolu2 GE Changchun1 ZHAO Haiqin3 |
1. Laboratory of Special Ceramics and Powder Metallurgy,
University of Science and Technology Beijing, Beijing 100083
2. Beijing Railway Star Fortune Technology Co., Ltd., Beijing 102200
3. CSR Qingdao Sifang Locomotive & Rolling Stock Co., Ltd., Qingdao 266111 |
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Cite this article:
WANG Ye YAN Qingzhi** ZHANG Xiaolu GE Changchun ZHAO Haiqin. Effect of Copper Powders on Properties of Cu-basedFriction Material. Chinese Journal of Materials Research, 2013, 27(1): 37-42.
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Abstract ABSTRACT The friction and wear properties of sintered Cu-based powder metallurgy(P/M) brake linings constituted with electrolytic copper powder, dispersion strengthening copper powder and Fe-Co-Cu alloy powder as matrix, respectively, were reported. The results show that the dispersive oxide and metallic elements influence the composition, thickness and hardness of friction film. Thus, the coefficient of friction (CF) of specimens is influenced. Specimens with dispersion strengthening Al2O3-Cu matrix display stable coefficient of friction and higher wear than other specimens. The absence of mechanical hybrid deformation layer in specimen of Fe-Co-Cu matrix lead to the friction occurred between the oxide film and the mating plate, which provides well wear resistance.
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