Microstructure evolution and thermal expansion of Cu-Zn alloy after high pressure heat treatment

被引：26
|
作者：
Chen Yan [1 ,2 ]
Liu Lin [3 ]
Wang Yue-hui [4 ]
Liu Jian-hua [1 ]
Zhang Rui-jun [1 ]
机构：
[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
[2] Yanshan Univ, Dept Environm & Chem Engn, Qinhuangdao 066004, Peoples R China
[3] Tangshan Vocat Technol Coll, Dept Basic Med, Tangshan 063000, Peoples R China
[4] Hebei Normal Univ Sci & Technol, Coll Phys & Chem, Qinhuangdao 066004, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2011年 / 21卷 / 10期
关键词：
Cu-Zn alloy; high pressure heat treatment; microstructure; thermal expansion coefficient; GRAIN-REFINEMENT; MECHANICAL-PROPERTIES;
D O I：
10.1016/S1003-6326(11)60996-5
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The thermal expansion coefficients of Cu-Zn alloy before and after high pressure treatment were measured by thermal expansion instrument in the temperature range of 25-700 degrees C, and the microstructure and phase transformation of the alloy were examined by optical microscope, X-ray diffractometer (XRD) and differential scanning calorimeter (DSC). Based on the experimental results, the effects of high pressure treatment on the microstructure and thermal expansion of Cu-Zn alloy were investigated. The results show that the high pressure treatment can refine the grain and increase the thermal expansion coefficient of the Cu-Zn alloy, resulting in that the thermal expansion coefficient exhibits a high peak value on the alpha-T curve, and the peak value decreases with increasing the pressure.
引用
收藏
页码：2205 / 2209
页数：5
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