Electrochemical and spectroscopic investigation of synergestic effects in corrosion inhibition of aluminium bronze Part 1 – In pure HCl

A. E. El Warraky, A. E. El Meleigy
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引用次数: 7

Abstract

Abstract The synergistic inhibition of aluminium bronze corrosion by 4-phenyl semicarbazide hydrochloride (PSC) and the iodide ion in HCl of pH (1·8-2) at 60°C has been assessed by polarisation studies, Tafel plots, X-ray photoelectron spectroscopy and Auger electron spectroscopy. The addition of 0·01M KI to 0·01M PSC improved the inhibition efficiency from 86 to 94% owing to the formation of a CuI-PSC complex which is more compact, protective and hard than the film formed in the absence of iodide. The inner layer of this protective film contains a small amount of aluminium oxide, which increases the protective nature of the film and retards the dissolution of the underlying aluminium bronze.
铝青铜缓蚀协同效应的电化学和光谱研究。第1部分-在纯盐酸中
通过极化研究、塔菲尔图、x射线光电子能谱和俄歇能谱,研究了60℃时4-氨基苯脲盐酸盐(PSC)和盐酸中碘离子对铝青铜腐蚀的协同抑制作用。0.01 m KI对0.01 m PSC的缓蚀率从86%提高到94%,这是由于与无碘化物时形成的膜相比,形成的CuI-PSC配合物更致密、保护性更强、硬度更高。这种保护膜的内层含有少量的氧化铝,这增加了膜的保护性质,并延缓了下面的铝青铜的溶解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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