Abstract
Mechanical properties and tribological behavior of a novel cast heat-resisting copper based alloy are investigated. The corresponding properties of a commercial aluminum bronze C95500 (ASTM B30) are compared with the alloy. The results show that the alloy possesses better mechanical properties and tribological behaviors than that of C95500 at elevated temperature. The tensile strength, elongation and hardness at 500°C are 470MPa, 2.5% and HB220, respectively. The wear rate of the developed alloy at ambient and elevated temperature is about one-sixth and one-fortieth of that of C95500, respectively. The alloy is very suitable for ma-nufacturing heat-resisting and wear-resisting parts. Major strengthening mechanisms for the alloy are solution strengthening and the second phase strengthening.
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Foundation item: The National Natural Science Foundation of China (No. 50075026); Foundation for University Key Teacher by the Ministry of Education (No. 200065)
Biography of the first author: ZHANG Wei-wen, associate professor, doctor, born in 1969, majoring in materials science and engineering.
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Zhang, Ww., Xia, W., Wen, Lp. et al. Mechanical properties and tribological behavior of a cast heat-resisting copper based alloy. J Cent. South Univ. Technol. 9, 235–239 (2002). https://doi.org/10.1007/s11771-002-0034-y
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DOI: https://doi.org/10.1007/s11771-002-0034-y