铜镍合金在添加不同缓蚀剂的55% LiBr溶液中的腐蚀行为
Corrosion Behavior of Cu-Ni Alloy in 55%LiBr Solution with Different Inhibitor
摘 要
采用电化学阻抗技术研究了LiOH、Na2MoO4和BTA对铜镍合金在55%LiBr溶液中的腐蚀行为的影响.结果表明,单独添加LiOH和BTA都能显著减缓铜镍合金在LiBr溶液中的腐蚀,而Na2MoO4含量较低时可能会加速腐蚀.三种缓蚀剂复配使用,对铜镍合金在55%LiBr 溶液中的腐蚀具有更好的缓蚀效果,复配后具有协同效应.试验表明,复合添加0.10 mol/L LiOH、150 mg/L Na2MoO4和150 mg/L BTA时,对铜镍合金在55%LiBr溶液中的腐蚀具有最优的缓蚀效率.
腐蚀
缓蚀剂
电化学阻抗
Cu-Ni alloy
corrosion
inhibitor
EIS
Abstract
The effects of LiOH,Na2MoO4 and BTA on the corrosion behavior of Cu-Ni alloy in 55%LiBr solution was studied by EIS measurements.Results indicated that LiOH or BTA could decrease the corrosion rate of Cu-Ni alloy,but Na2MoO4 might increase the corrosion rate when its concentration was lower than a critical value.When LiOH,Na2MoO4 and BTA were used together,the inhibition efficiency on Cu-Ni alloy was higher than that when was used one of them.They behaved with a synergistic effect on inhibiting the corrosion of Cu-Ni alloy in 55%LiBr solution.When the concentration of LiOH,Na2MoO4 and BTA was 0.10 mol/L,150 mg/L and 150 mg/L,respectively,the inhibition efficiency on the corrosion of Cu-Ni alloy in 55%LiBr solution was optimal.
中图分类号 TG174.42
所属栏目 试验研究
基金项目
收稿日期 2007/7/3
修改稿日期 2008/3/25
网络出版日期
作者单位点击查看
引用该论文: HU Xian-qi,LIANG Cheng-hao. Corrosion Behavior of Cu-Ni Alloy in 55%LiBr Solution with Different Inhibitor[J]. Corrosion & Protection, 2008, 29(8): 448～450
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