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| INVESTIGATION ON THE REPAIRING EFFECT OF ALTERNATING VOLTAGE ELECTRIC FIELD ON THE PITTED NiCr ALLOY ELECTRODE |
| Yunchao Li;Chuanwei Yan;Hongping Duan |
| 中科院金属所 金属腐蚀与防护国家重点实验室 |
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Cite this article:
Yunchao Li; Chuanwei Yan; Hongping Duan. INVESTIGATION ON THE REPAIRING EFFECT OF ALTERNATING VOLTAGE ELECTRIC FIELD ON THE PITTED NiCr ALLOY ELECTRODE. J Chin Soc Corr Pro, 2003, 23(2): 92-98 .
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Abstract The repairing effect of Alternating Voltage electri c field on the pitted NiCralloy electrode is investigated by means of convention al electrochemical measurement techniques.The effect of the Alternating Voltage electric field with different parameters,such as the top or bottom potentials,fr equency,ratio of time,on the properties of repassive film displays certain regul arity,and exists optimal range for parameters' value,that is EH(800～1000 mV),EL(-200～0 mV),F(5～20 Hz).The electric field with adequate param eters will produce obvious repairing effect on the pitted electrode.The paramete rs’ condition is optimized by perpendicularity experiment,i.e.EH=800 mV， EL=-200 mV，R=1/2，F=10 Hz.
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Received: 21 August 2001
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