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The Influence of Deformation on Dechromization Corrosion of CuCr Alloy in H3PO4 Solutions

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Abstract:

The influence of deformation on dechromization of CuCr alloy in H3PO4 solutions was investigated by static immersion corrosion tests. The properties of undeformed and deformed alloys were characterised by XRD, Metallograph, SEM and X-ray fluorescence spectrometer respectively. It is observed that the deformation plays an important role in dechromization of CuCr alloys in H3PO4 solutions. Compared with undeformed one, the deformed CuCr alloy’s incubation time of corrosion is shortened, the concentration and temperature of H3PO4 solutions needed for dechromization decrease. Consequently the tendency of dechromization increases. Surface analysis showed that the microstructure of the dechromization layer is scarcely influenced. Finally, the dechromisation mechanism was discussed.

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Periodical:

Advanced Materials Research (Volumes 194-196)

Pages:

1261-1264

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.194-196.1261

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Online since:

February 2011

Authors:

Yu Wen Liu, Wei Lu, Jian Zheng Song, Jian Hua Liu, Rui Jun Zhang

Keywords:

CuCr Alloy, Dechromization Corrosion, Deformation, H3PO4 Solution

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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