期刊
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
卷 25, 期 3, 页码 1062-1067出版社
SPRINGER
DOI: 10.1007/s11665-016-1918-6
关键词
corrosion resistance; Cu alloy; electrochemical test; rare-earth element
资金
- National Natural Science Foundation of China [51461018, 50961006]
- International Science and Technology Cooperation Project of Jiangxi Province [20151BDH80006]
- Natural Science Foundation of Jiangxi Province [20133BAB20008]
- Prior Science and Technology Program [RSTH[2015]192- GRSZ[2015]273]
- Science and Technology Innovation Project of Jiangxi Academy of Sciences [2012-KLP-5, 2013-YYB-1, 2013-XTPH1-19, 2015XTTD04]
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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