Effect of ECAP on the Electrochemical Behavior of Chromium Bronze

Ya Ni Zhang; Chang Zheng Xu; Mao Sheng Zheng; Jie Wu Zhu

doi:10.4028/www.scientific.net/AMR.239-242.98

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Effect of ECAP on the Electrochemical Behavior of...

Effect of ECAP on the Electrochemical Behavior of Chromium Bronze

Abstract:

The effect of equal channel angular pressing (ECAP) process on the electrochemical behavior of chromium bronze in NaCl solution was investigated by three-electrode cell setup. The result shows the difference of electrochemical behavior between X plane and Y plane is still exist, and even in the unodd number passes for “route C” of ECAP process. ECAP process don’t change the corrosion nature of chromiun bronze, but the corrosion potential of 12 passes ultra-fine grain (UFG) chromium bronze is a little more positive than that of 0 pass chromium bronze. For better understanding the effect of ECAP on the electrochemical behavior of chromium bronze, we chose the cold-rolled materials with the same composition as reference materials. The result shows that ECAP process is more benefical to electrochemical behavior of chromium bronze than cold-rolled process. On the other hand, the result of EIS also shows that ECAP process is more benefical to form compacted corrosion layers on the surface of specimens.

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Periodical:

Advanced Materials Research (Volumes 239-242)

Pages:

98-101

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.239-242.98

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Online since:

May 2011

Authors:

Ya Ni Zhang, Chang Zheng Xu, Mao Sheng Zheng, Jie Wu Zhu

Keywords:

Chromium Bronze, Electrochemical Behaviour, Equal-Channel Angular Pressing (ECAP), NaCl Solution

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