Effects of high pressure on the microstructure and hardness of a Cu-Zn alloy
来源期刊：Rare Metals2008年第5期
论文作者：ZHAO Jun a, LIU Lin b, YANG Jingru c, PENG Guirong a, LIU Jianhua a, ZHANG Ruijun a, and XING Guangzhong a a State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao , China b Department of Basic Medical, Tangshan Vocational Technology College, Tangshan , China c Department of Information and Electromechanical Engineering, Hebei Building Material College of Professional Technology, Qinhuangdao , China
文章页码：541 - 544
摘 要：The microstructure of a Cu-Zn alloy treated under different high pressures was investigated by means of metallographic, scanning electron microscope （SEM）, energy dispersive spectrometer （EDS）, and X-ray diffraction （XRD）, and the hardness of the Cu-Zn alloy was also measured. The results show that the α phase with a smaller grain size, different shapes, and random distribution appears in the Cu-Zn alloy during the solid-state phase transformation generation in the temperature range of 25-750°C and the pressure range of 0-6 GPa. The amount of residual α phase in the microstructure decreases and then increases with increasing pressure. Under a high pressure of 3 GPa, the least volume fraction of residual α phase was obtained, and under a high pressure of 6 GPa, the changes of the microstructure of the Cu-Zn alloy were not obvious. In addition, high pressure can increase the hardness of the Cu-Zn alloy, but it cannot generate any new phase.
ZHAO Jun a, LIU Lin b, YANG Jingru c, PENG Guirong a, LIU Jianhua a, ZHANG Ruijun a, and XING Guangzhong a a State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China b Department of Basic Medical, Tangshan Vocational Technology College, Tangshan 063000, China c Department of Information and Electromechanical Engineering, Hebei Building Material College of Professional Technology, Qinhuangdao 066004, China
摘 要：The microstructure of a Cu-Zn alloy treated under different high pressures was investigated by means of metallographic, scanning electron microscope （SEM）, energy dispersive spectrometer （EDS）, and X-ray diffraction （XRD）, and the hardness of the Cu-Zn alloy was also measured. The results show that the α phase with a smaller grain size, different shapes, and random distribution appears in the Cu-Zn alloy during the solid-state phase transformation generation in the temperature range of 25-750°C and the pressure range of 0-6 GPa. The amount of residual α phase in the microstructure decreases and then increases with increasing pressure. Under a high pressure of 3 GPa, the least volume fraction of residual α phase was obtained, and under a high pressure of 6 GPa, the changes of the microstructure of the Cu-Zn alloy were not obvious. In addition, high pressure can increase the hardness of the Cu-Zn alloy, but it cannot generate any new phase.
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