INHIBITION EFFECT OF ETHYLEDIAMINE ON CAST IRON IN DESALINATION SOLUTION
乙二胺对铸铁文物在脱氯溶液中的缓蚀作用

Dechlorination effects of chemical and electrochemical techniques on cast iron in ethylenediamine-containing alkaline solution have been studied in this paper.It has been found that dechlorination effect of chemical and electrochemical techniques on cast iron in this alkaline solution is more effective than traditional methods.Surface composition of the treated rust sample has been characterized by infrared(IR) spectrum and ultraviolet(UV) spectrum.The electrochemical behavior of the cast iron after dechlorination has been examined by electrochemical impedance spectroscopy(EIS) and potentiodynamic polarization.The results showed that a chelate membrane was induced on the surface of the cast iron treated in the ethylenediamine-containing alkaline solution and the anti-corrosion performance of the as-treated iron was improved obviously.