Microstructure and Shape Memory Effect of Cu-26.1Zn-4.8Al Alloy

武汉理工大学学报-材料科学版(英文版), 2008, 23(5): 717-719.

^1, , ^2, , ^3, , ^4,

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

4.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Microstructure and Shape Memory Effect of Cu-26.1Zn-4.8Al Alloy

CHENG Xiaomin ^1, , HUANG Feng ^2, , LI Na ^3, , WU Xingwen ^4,

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

4.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Keywords： Cu-Zn-Al alloy

The influence of processing parameters on the microstructure and shape memory effect of Cu-26.1Zn-4.8Al alloy was investigated. The treated specimens were characterized by metallography, X-ray diffraction (XRD) and transmission electron microscopy (TEM) to explain the mechanism of shape memory effect in Cu-26.1Zn-4.8Al alloy. The results reveal that the shape memory effect is markedly increased by appropriate quenching and ageing process. XRD shows that γ-phase precipitates from martensite when aged at higher temperature and γ precipitates impair the shape memory effect. TEM analysis indicate that the substructure of plate-like martensite consists of twins and stacking faults.

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材料期刊网

Microstructure and Shape Memory Effect of Cu-26.1Zn-4.8Al Alloy

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