Mechanical properties and tribological behavior of a cast heat-resisting copper based alloy

来源期刊：中南大学学报(英文版)2002年第4期

论文作者：张卫文 夏伟 温利平 吴苑标 潘国如

文章页码：235 - 239

Key words：copper based alloy; heat-resisting; mechanical property; tribological behavior

Abstract: Mechanical properties and tribological behavior of a novel cast heat-resisting copper based alloyare investigated. The corresponding properties of a commercial aluminum bronze C95500 (ASTM B30) are compared with the alloy. The results showthat the alloy possesses bettermechanical properties and tribological behaviors than that of C95500 at elevated temperature. The tensile strength, elongation and hardness at 500℃ 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 forma-nufacturing heat-resisting and wear-resisting parts. Major strengthening mechanisms for the alloy are solution strengthening and the second phase strengthening.