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Effect of electric current direction on the microstructural evolution and mechanical properties of a cold-rolled Cu–Zn alloy during the phase transformation induced by electric current pulses

Published online by Cambridge University Press:  07 August 2015

Xinli Wang ,
Meishuai Liu ,
Wenbin Dai ,
Nan Wu  and
Xiang Zhao
Xinli Wang*
Affiliation:
Research Institute, Northeastern University, Shenyang 110004, People's Republic of China
Meishuai Liu
Affiliation:
Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, People's Republic of China
Wenbin Dai
Affiliation:
School of Materials and Metallurgy, Northeastern University, Shenyang 110819, People's Republic of China
Nan Wu
Affiliation:
Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, People's Republic of China
Xiang Zhao*
Affiliation:
Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, People's Republic of China
*
a)Address all correspondence to these authors. e-mail: wangxl520@hotmail.com
b)e-mail: zhaox@mail.neu.edu.cn
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Abstract

The effect of current direction (CD) on the microstructural evolution and mechanical properties of a Cu–Zn binary phase (α + β) alloy during the primary process of phase transformation induced by electric current pulses (ECP) treatment was investigated. To clarify the effect of CD, the samples were prepared with different angles between the CD and rolling direction (RD) from 0° to 90°. Results showed that not only the microstructural evolution but also the corresponding mechanical properties all had a saddle point in the sample with the angle 45°. Analyzed from the mechanical properties, it could be found that the anisotropic of the materials becomes stronger due to the application of ECP. An important finding is that by changing the angles between the CD and the RD, a novel and effective approach to control the phase transformation process could be provided.

Keywords

electric current pulsescurrent directionphase transformation
Type
Articles
Information
Journal of Materials Research , Volume 30 , Issue 16 , 28 August 2015 , pp. 2500 - 2507
Copyright
Copyright © Materials Research Society 2015 

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References

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