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Electrochemical and Salt Spray Corrosion Behavior of Copper Alloy Contact Wires in Chloride Solution

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Abstract:

The effect of different alloying elements on corrosion behavior of copper alloys was investigated using electrochemical corrosion and salt spray corrosion test in NaCl solution. Cu-Ag has the most stable corrosion current in the potentiostatic scanning test, exhibiting a better corrosion resistant performance. It can be analyzed from corrosion surface morphologies that Cu-Ag presents exfoliation corrosion mechanism while Cu-Sn shows crevice corrosion mechanism. Cu-Mg has a complex corrosion process caused by multiple corrosion mechanism. In the salt spray corrosion test, the corrosion degree of Cu-Ag is lighter than those of Cu-Sn and Cu-Mg after 24h test. Therefore, the Cu-Ag alloy exhibits the best corrosion resistance in chloride solution.

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Periodical:

Materials Science Forum (Volume 789)

Pages:

622-626

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.789.622

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Online since:

April 2014

Authors:

Peng Chao Zhang*, Jian Zhang, Jin Chuan Jie, Yuan Gao, Yong Dong, Tong Min Wang, Ting Ju Li

Keywords:

Copper Alloy, Electrochemical Corrosion, Salt Spray Corrosion

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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