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Effect of Boron and Cerium on Corrosion Resistance of Cu-Fe-P Alloy

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Abstract

The effects of B and Ce on the corrosion resistance of Cu-0.22Fe-0.06P alloy were investigated by salt spray and electrochemical tests. The corrosion morphology was studied by scanning electron microscopy. The corrosion products were characterized by energy-dispersive x-ray spectroscopy and x-ray diffraction analysis. The impurity content was determined by inductively coupled plasma mass spectrometry. The conductivity was measured using an eddy current conductivity meter. The grains of Cu-0.22Fe-0.06P alloy were refined by the addition of B and Ce. The electrochemical corrosion process of alloy is retarded due to purification effect of B and Ce. After the addition of a trace amount of B, the corrosion resistance of the alloy decreased. The corrosion resistance of Cu-0.22Fe-0.06P-0.025B-0.05Ce was better than that of Cu-0.22Fe-0.06P-0.025B due to the fact that the purification effect of Ce is better than that of B. The main corrosion products of the Cu-Fe-P alloys in a NaCl solution are Cu2Cl(OH)3 and Cu2O. The addition of trace amounts of B and Ce did not change the components of the corrosion product.

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Acknowledgment

This study was supported by the National Natural Science Foundation of China (51461018; 50961006), the International Science and Technology Cooperation Project of Jiangxi Province (20151BDH80006), the Key Program of Natural Science Foundation of Jiangxi Province (20133BAB20008), the Prior Science and Technology Program Led by the Returned Overseas Chinese Talents (RSTH[2015]192- GRSZ[2015]273), and the Science and Technology Innovation Project of Jiangxi Academy of Sciences (2012-KLP-5; 2013-YYB-1; 2013-XTPH1-19; 2015XTTD04).

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Authors and Affiliations

  1. Shanghai Key Laboratory of Modern Metallurgy & Materials Processing, Shanghai University, Shanghai, 200444, China

    Jin Zou & Qi-jie Zhai

  2. Jiangxi Key Laboratory for Advanced Copper and Tungsten materials, Jiangxi Academy of Sciences, Nanchang, 330029, China

    Jin Zou, Lei Lu, De-ping Lu, Ke-Ming Liu & Zhi-bao Chen

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  1. Jin Zou
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  2. Lei Lu
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Correspondence to Jin Zou.

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Zou, J., Lu, L., Lu, Dp. et al. Effect of Boron and Cerium on Corrosion Resistance of Cu-Fe-P Alloy. J. of Materi Eng and Perform 25, 1062–1067 (2016). https://doi.org/10.1007/s11665-016-1918-6

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  • DOI: https://doi.org/10.1007/s11665-016-1918-6

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