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

页码：2205 / 2209

页数：5

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