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

被引：27

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

共 18 条

[1]

Byung GM, 2001, MATER CHEM PHYS, V72, P42

[2]

LI G, 2009, CHINESE PHYS LETT, V26

[3]

Li Rong-de, 2009, Chinese Journal of Nonferrous Metals, V19, P1570

[4] Effect of specific pressure on microstructure and mechanical properties of squeeze casting ZA27 alloy [J].

Li Run-xia ;

Li Rong-de ;

Bai Yan-hua ;

Qu Ying-dong ;

Yuan Xiao-guang .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2010, 20 (01) :59-63

[5]

Lu J.-q., 2010, J MAT SCI ENG, V4, P58

[6] Effect of silicon addition on grain refinement of copper alloys [J].

Oishi, K ;

Sasaki, I ;

Otani, J .

MATERIALS LETTERS, 2003, 57 (15) :2280-2286

[7] Grain refinement and crack prevention in constrained groove pressing of two-phase Cu-Zn alloys [J].

Peng, Kaiping ;

Su, Lifeng ;

Shaw, Leon L. ;

Qian, K.-W. .

SCRIPTA MATERIALIA, 2007, 56 (11) :987-990

[8] Cluster evolution in the rapid cooling process of Cu-Ag melts under high pressure: Molecular-dynamics simulation [J].

Qi, L. ;

Dong, L. F. ;

Zhang, S. L. ;

Ma, M. Z. ;

Jing, Q. ;

Li, G. ;

Liu, R. P. .

COMPUTATIONAL MATERIALS SCIENCE, 2008, 43 (04) :732-735

[9] Formation of nanograined structure and decomposition of supersaturated solid solution during high pressure torsion of Al-Zn and Al-Mg alloys [J].

Straumal, BB ;

Baretzky, B ;

Mazilkin, AA ;

Phillipp, F ;

Kogtenkova, OA ;

Volkov, MN ;

Valiev, RZ .

ACTA MATERIALIA, 2004, 52 (15) :4469-4478

[10]

[孙淑华 SUN ShuHua], 2008, [高压物理学报, Chinese Journal of High Pressure Physics], V22, P434

← 1 2 →