BFe10-1-1和B7-2-2铜管的耐腐蚀性比较
COMPARISON OF CORROSION RESISTANCE BETWEEN CUPRONICKEL ALLOYS BFe10-1-1 AND B7-2-2
摘 要
用电化学测试方法评定了加缓蚀剂BTA前后BFe10-1-1和镍含量约7%的B7-2-2铜镍合金冷凝管在模拟冷却水中的耐蚀性能.结果表明,不加BTA,B7-2-2的耐蚀性不如BFe10-1-1;添加BTA能有效抑制脱镍,使管样的耐蚀性比不加BTA提高约4倍,且BTA对B7-2-2的缓蚀效果优于BFe10-1-1.
凝汽器铜管
腐蚀
BTA
Electrochemical measurement
Cupronickel tube
Corrosion
BTA
Abstract
The corrosion resistance of cupronickel tubes of BFe10-1-1 (～10% Ni ) and B7-2-2 (～7% Ni ) in simulated cooling water with and without corrosion inhibitor BTA was studied by electrochemical measurements.In the simulated cooling water without BTA,both tubes were subject to denickelification,and the corrosion resistance of B7-2-2 was lower than that of BFe10-1-1.In the addition of BTA,the denickelification was effectively prevented,and the corrosion resistance was about four times higher than that without BTA.The inhibiting action of BTA for B7-2-2 tube was more effective than for BFe10-1-1.
中图分类号 TG174.2
所属栏目 试验研究
基金项目 上海市重点学科项目(P1304)
收稿日期 2007/1/15
修改稿日期 2007/4/30
网络出版日期
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引用该论文: WU Yi-ping,ZHOU Guo-ding,ZHANG Jun-xi. COMPARISON OF CORROSION RESISTANCE BETWEEN CUPRONICKEL ALLOYS BFe10-1-1 AND B7-2-2[J]. Corrosion & Protection, 2007, 28(9): 455～457
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参考文献
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【3】诸红玉,吴一平,周国定,等.凝汽器铜管缓蚀剂的使用[J].中国电力,2002,35(10):36-39.
【4】杜方正,王义好,王礼海,等.某电厂3号机凝汽器铜管腐蚀分析及处理[J].国际电力,2002,6(4):57-60.
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