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51313-02322-Effect of friction-stir process on the corrosion and cavitation erosion behavior of Ni-Al bronze C95800

Product Number: 51313-02322-SG
ISBN: 02322 2013 CP
Author: Y.G. Zheng
Publication Date: 2013
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$20.00
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Effect of friction-stir process on the corrosion and cavitation erosion behavior of Ni-Al bronze C95800
Y.G. Zheng Q.N. Song S.L. Jiang D.R. Ni Z.Y. Ma
State Key Laboratory for Corrosion and Protection Institute of Metal Research Chinese Academy of Sciences 62 Wencui Road Shenyang 110016 P.R. China

ABSTRACT
The corrosion and cavitation erosion behavior of as-cast and friction-stir processed (FSP) Ni-Al bronze C95800 was studied. Electrochemical methods (LPR EIS) and XPS were conducted to study the formation of protective layers with the immersion time in stagnant simulated seawater. The results demonstrated that a more compact and protective oxide film formed on the FSP C95800. The cavitation erosion behavior of these two materials in distilled water was investigated using mass loss measurement and SEM. No large and deep pits were detected on the FSP surface after cavitation test. The mass loss for the as-cast sample was about 1.5 times higher than that for the FSP one. The homogenized microstructure and less cast defects of the FSP bronze contributed to its high corrosion and cavitation erosion resistance.

Key words: friction-stir process corrosion cavitation erosion Ni-Al bronze C95800
 

Effect of friction-stir process on the corrosion and cavitation erosion behavior of Ni-Al bronze C95800
Y.G. Zheng Q.N. Song S.L. Jiang D.R. Ni Z.Y. Ma
State Key Laboratory for Corrosion and Protection Institute of Metal Research Chinese Academy of Sciences 62 Wencui Road Shenyang 110016 P.R. China

ABSTRACT
The corrosion and cavitation erosion behavior of as-cast and friction-stir processed (FSP) Ni-Al bronze C95800 was studied. Electrochemical methods (LPR EIS) and XPS were conducted to study the formation of protective layers with the immersion time in stagnant simulated seawater. The results demonstrated that a more compact and protective oxide film formed on the FSP C95800. The cavitation erosion behavior of these two materials in distilled water was investigated using mass loss measurement and SEM. No large and deep pits were detected on the FSP surface after cavitation test. The mass loss for the as-cast sample was about 1.5 times higher than that for the FSP one. The homogenized microstructure and less cast defects of the FSP bronze contributed to its high corrosion and cavitation erosion resistance.

Key words: friction-stir process corrosion cavitation erosion Ni-Al bronze C95800
 

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