纯铬钝化膜的电化学性能

Electrochemical Behaviour of Passive Film on Pure Chrome Surface

摘要: 本文用交流阻抗技术,通过对钝化铬在中性H₃BO₃+Na₂B₄O₇溶液中添加了K₃Fe₂(CN)₆/K₄Fe(CN)₆氧化还原对溶液中的极化性能及交流阻抗特性的研究,讨论了铬的钝化膜的电路模型。

Abstract: This report studies on polarization behaviour and A.C impedance character of pure chrome in nuetral solution of H₃BO₃-Na₂B₄O₇ and in redox solution of H₃BO₃-Na₂B₄O₇ + K₃Fe(CN) ₆/K₄Fe(CN) ₆ by means of polarization curve and impedance techniques. A discussion on electrode reaction and electro-model of passive film are completed.