Xiang Zhao, Lei-chen Guo, Long Zhang, Ting-ting Jia, Cun-guang Chen, Jun-jie Hao, Hui-ping Shao, Zhi-meng Guo, Ji Luo, and Jun-bin Sun, Influence of nano-Al2O3-reinforced oxide-dispersion-strengthened Cu on the mechanical and tribological properties of Cu-based composites, Int. J. Miner. Metall. Mater., 23(2016), No. 12, pp. 1444-1451. https://doi.org/10.1007/s12613-016-1368-z
Cite this article as:
Xiang Zhao, Lei-chen Guo, Long Zhang, Ting-ting Jia, Cun-guang Chen, Jun-jie Hao, Hui-ping Shao, Zhi-meng Guo, Ji Luo, and Jun-bin Sun, Influence of nano-Al2O3-reinforced oxide-dispersion-strengthened Cu on the mechanical and tribological properties of Cu-based composites, Int. J. Miner. Metall. Mater., 23(2016), No. 12, pp. 1444-1451. https://doi.org/10.1007/s12613-016-1368-z
Xiang Zhao, Lei-chen Guo, Long Zhang, Ting-ting Jia, Cun-guang Chen, Jun-jie Hao, Hui-ping Shao, Zhi-meng Guo, Ji Luo, and Jun-bin Sun, Influence of nano-Al2O3-reinforced oxide-dispersion-strengthened Cu on the mechanical and tribological properties of Cu-based composites, Int. J. Miner. Metall. Mater., 23(2016), No. 12, pp. 1444-1451. https://doi.org/10.1007/s12613-016-1368-z
Citation:
Xiang Zhao, Lei-chen Guo, Long Zhang, Ting-ting Jia, Cun-guang Chen, Jun-jie Hao, Hui-ping Shao, Zhi-meng Guo, Ji Luo, and Jun-bin Sun, Influence of nano-Al2O3-reinforced oxide-dispersion-strengthened Cu on the mechanical and tribological properties of Cu-based composites, Int. J. Miner. Metall. Mater., 23(2016), No. 12, pp. 1444-1451. https://doi.org/10.1007/s12613-016-1368-z
The mechanical and tribological properties of Cu-based powder metallurgy (P/M) friction composites containing 10wt%–50wt% oxide-dispersion-strengthened (ODS) Cu reinforced with nano-Al2O3 were investigated. Additionally, the friction and wear behaviors as well as the wear mechanism of the Cu-based composites were characterized by scanning electron microscopy (SEM) in conjunction with energy-dispersive X-ray spectroscopy (EDS) elemental mapping. The results indicated that the Cu-based friction composite containing 30wt% ODS Cu exhibited the highest hardness and shear strength. The average and instantaneous friction coefficient curves of this sample, when operated in a high-speed train at a speed of 300 km/h, were similar to those of a commercial disc brake pad produced by Knorr-Bremse AG (Germany). Additionally, the lowest linear wear loss of the obtained samples was (0.008 ± 0.001) mm per time per face, which is much lower than that of the Knorr-Bremse pad ((0.01 ± 0.001) mm). The excellent performance of the developed pad is a consequence of the formation of a dense oxide composite layer and its close combination with the pad body.
The mechanical and tribological properties of Cu-based powder metallurgy (P/M) friction composites containing 10wt%–50wt% oxide-dispersion-strengthened (ODS) Cu reinforced with nano-Al2O3 were investigated. Additionally, the friction and wear behaviors as well as the wear mechanism of the Cu-based composites were characterized by scanning electron microscopy (SEM) in conjunction with energy-dispersive X-ray spectroscopy (EDS) elemental mapping. The results indicated that the Cu-based friction composite containing 30wt% ODS Cu exhibited the highest hardness and shear strength. The average and instantaneous friction coefficient curves of this sample, when operated in a high-speed train at a speed of 300 km/h, were similar to those of a commercial disc brake pad produced by Knorr-Bremse AG (Germany). Additionally, the lowest linear wear loss of the obtained samples was (0.008 ± 0.001) mm per time per face, which is much lower than that of the Knorr-Bremse pad ((0.01 ± 0.001) mm). The excellent performance of the developed pad is a consequence of the formation of a dense oxide composite layer and its close combination with the pad body.
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