温度对B30铜镍合金在海水中电化学行为的影响
Effect of Temperature on Electrochemical Behavior of B30 Cu-Ni Alloy in Seawater
摘 要
采用线性极化、动电位极化、交流阻抗、循环阳极极化等测试方法,研究了温度变化对B30铜镍合金在海水中电化学行为的影响.结果表明:随着温度的升高,B30铜镍合金在海水中的腐蚀电流密度增大,生成的表面膜稳定性下降,点蚀倾向加重.
B30铜镍合金
极化曲线
交流阻抗谱
temperature
B30 Cu-Ni alloy
polarization curve
electorchemical impedance spectroscopy
Abstract
The effect of temperature on electorchemical behavior of B30 Cu-Ni alloy in seawater was studied by linear polarization,potentiodynamic polarization,electrochemical impedance spectroscopy and cyclic anodic polarization.It was shown that with the increase of temperature,the corrosion carrent of B30 Cu-Ni alloy in seawater inceased,the oxide film formed on the surface became unstable,the probability of pitting corrosion was evident.
中图分类号 TG172.5 TG146.1
所属栏目 试验研究
基金项目 基础科研环境腐蚀课题(H082006A003)
收稿日期 2008/10/26
修改稿日期 2008/11/14
网络出版日期
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引用该论文: CHI Chang-yun,LI Ning,XUE Jian-jun,LI Xiang-bo,XU Li-kun. Effect of Temperature on Electrochemical Behavior of B30 Cu-Ni Alloy in Seawater[J]. Corrosion & Protection, 2009, 30(11): 772～774
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参考文献
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【2】张关根,钱卫忠,肖志坚,等.舰船海水管系防腐现状和对策[J].舰船,1997(3):37-44.
【3】赵月红,林乐耘,崔大为.铜镍合金在我国实海海域的局部腐蚀[J].中国有色金属学报,2005,15(11):1786-1794.
【4】Zhu Xiaolong,Lei Tingquan.Characteristics and formation of corrosion product films of 70Cu-30Ni alloy in seawater[J].Corrosion Science,2002,44:67-79.
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