COMPARISON OF CORROSION RESISTANCE BETWEEN CUPRONICKEL ALLOYS BFe10-1-1 AND B7-2-2
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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.
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