Effects of high pressure on the microstructure and hardness of a Cu-Zn alloy

稀有金属（英文版）, 2008, 27(5): 541-544.

^1, , ^2, , ^3, , ^4, , ^5, , ^6, , ^7,

1.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

2.Department of Basic Medical Tangshan Vocational Technology College,Tangshan 063000,China

3.Department of Information and Electromechanical Engineering,Hebei Building Material College of Professional Technology,Qinhuangdao 066004,China

4.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

5.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

6.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

7.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

Effects of high pressure on the microstructure and hardness of a Cu-Zn alloy

ZHAO Jun ^1, , LIU Lin ^2, , YANG Jingru ^3, , PENG Guirong ^4, , LIU Jianhua ^5, , ZHANG Ruijun ^6, , XING Guangzhong ^7,

1.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

2.Department of Basic Medical Tangshan Vocational Technology College,Tangshan 063000,China

3.Department of Information and Electromechanical Engineering,Hebei Building Material College of Professional Technology,Qinhuangdao 066004,China

4.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

5.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

6.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

7.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China

Keywords： Cu-Zn alloy

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 a 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℃ 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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Effects of high pressure on the microstructure and hardness of a Cu-Zn alloy

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