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Effect of Zn Addition on the Microstructure and Properties of Simulated-Brazing 7072Al Alloy

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Abstract:

7072Al is widely used as cladding layer for heat-transfer components. In this paper, the microstructure, mechanical properties and electrochemical properties of simulated-brazing 7072Al alloy with Zn addition were investigated. Transmission electron microscopy (TEM) observations revealed that, in the simulated-brazing state, Zn-addition could promote the precipitation in the 7072Al alloy. Tensile testing results indicated that, in comparison with 7072Al alloy, the mechanical properties were improved after Zn-addition. Electrochemical testing results revealed that the simulated-brazing alloy showed a negative shift of the corrosion potential with the addition of Zn element.

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Periodical:

Materials Science Forum (Volume 852)

Pages:

33-37

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.852.33

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Online since:

April 2016

Authors:

Xing Long Xu, Dong Yan Ding, Wen Long Zhang, Yong Jin Gao, Guo Zhen Chen, Yuan Wei Huang, Jin Song Tang

Keywords:

7072Al Alloy, Electrochemical Properties, Mechanical Properties, Microstructure, Zn

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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