B10铜镍合金在NaCl溶液中腐蚀行为的研究
SELECTIVE CORROSION OF BFe10-1-1 ALLOY IN NaCl SOLUTION
摘 要
研究了BFe10-1-1铜镍合金在0.5mol/L NaCl溶液中的选择性腐蚀行为,测其在不同pH值的试验溶液中的阳极极化曲线,并选择一定电化学条件下进行恒电位腐蚀.通过对腐蚀后溶液中的Cu2+和Ni2+含量的分析和对试样断面的微区成分分析,了解不同条件下的BFe10-1-1铜镍合金的选择性腐蚀规律.试验结果表明,BFe10-1-1铜镍合金的选择性腐蚀取决于腐蚀介质的酸碱度及腐蚀电位等电化学条件.在碱性溶液中的耐蚀性比其在酸性溶液中要好,在酸性和弱碱性溶液中脱镍,在强碱性溶液中低电位下脱铜,高电位下脱镍.
选择性腐蚀
点腐蚀
极化曲线
Cu-Ni alloy
Selective corrosion
Pitting corrosion
Polarization curve
Abstract
Corrosion behavior of BFe10-1-1 alloy in 0.5mol/L NaCl solution was studied.The anodic polarization curves of the alloy in the NaCl solution at various pH values were measured.The corrosion behavior of the alloy at various potentials was investigated by means of measuring the concentrations of Cu2+ and Ni2+ in the corroding solution and characterizing the corrosion layers.The experimental results show that the selective corrosion of the BFe10-1-1 alloy was determined by the pH value and potential in the 0.5mol/L NaCl solution.
中图分类号 TG172.6 TG174.2
所属栏目 试验研究
基金项目
收稿日期 2005/11/1
修改稿日期 2006/2/1
网络出版日期
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引用该论文: CHEN Hai-yan,ZHU You-lan. SELECTIVE CORROSION OF BFe10-1-1 ALLOY IN NaCl SOLUTION[J]. Corrosion & Protection, 2006, 27(8): 404～407
被引情况:
【1】徐建林,于涛,杨波,龙大伟, "工艺参数对铝青铜表面激光熔覆镍基合金温度场的影响",机械工程材料 35, 93-96(2011)
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参考文献
【1】［美］M.舒马赫编,李大超,等译.海水腐蚀手册[M].北京:国防工业出版社,1985.4.
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