为降低溴冷机中碳钢的腐蚀,通过失重法和电化学方法研究了含有0.07 mol/L LiOH和150mg/L Na2MoO4的55%LiBr、60%LiBr溶液中苯并三氮唑(BTA)对碳钢的缓蚀作用.结果表明,在溴化锂溶液中添加BTA时可显著降低碳钢腐蚀;55%LiBr、60%LiBr溶液中BTA的最佳添加量为100 mg/L;55%LiBr溶液中,BTA通过与铁离子形成Fe-BTA型配合物覆盖在金属表面阻碍浸蚀性Br-吸附而起缓蚀作用;60%LiBr溶液中,BTA则与MoO42-共同作用,在碳钢表面形成MoO2、MoO3和Fe-BTA致密钝化膜减缓金属活性溶解.
参考文献
| [1] | 郭建伟,梁成浩.高温高浓度溴化锂溶液中碳钢钝化膜形成机理研究[J].材料科学与工艺,2001(04):413-416. |
| [2] | 郭建伟,梁成浩.高温高浓度溴化锂溶液对低合金钢的电化学行为作用[J].电化学,2000(04):451-457. |
| [3] | KAZUO Tanno;SHIRO Saito;MASAHIKO Ito .Corrosion inhibition of carbon steel, copper and 70/30cupro-nickel by benzotriazole in concentrated lithium bromide solution at elevated temperature[J].Boshoku Gijutsu,1984,33(09):516-519. |
| [4] | Yoshio Umetsu;KAZUO Tanno;MASAHIKO Ito .Corrosion inhibition of carbon steel, copper and 70/30cupro-nickel by sodium tetraborate and benzotriazole in concentrated lithium bromide solution at elevated temperature[J].防食技术,1980,29:233-238. |
| [5] | ABD ELHAMID M H;ATEYA B G;PICHERING H W .Effect of benzotriazole on the hydrogen absorption by iron[J].Journal of the Electrochemical Society,1997,144(04):L58-L61. |
| [6] | Li Weihong;NOBE Ken .Electrodissolution of iron in chloride solutions IX. Effect of bonzotriazole on potential oscillations[J].Journal of the Electrochemical Society,1993,140(06):1642-1649. |
| [7] | Modestov A D;ZHOU G D;WU Y P et al.A study of the electrochemical formation of Cu (Ⅰ)-BTA films on coppor electrodes and the mechanism of copper corrosion inhibition in aqueous chloride/benzotriazole solutions[J].Corrosion Science,1994,36(11):1931-1946. |
| [8] | DESMOND Tromans;SUN Ru-hong .Anodic polarization behavior of copper in aqueous chloride/benzotriazole solutions[J].Journal of the Electrochemical Society,1991,138(11):3235-3244. |
| [9] | Subramanian R;LAKSHMINARAYANAN V .Effect of absorption of some azoles on copper passivation in alkaline medium[J].Corrosion Science,2002,44(03):535-554. |
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