Continuous monitoring of aluminum corrosion process in deaerated water

被引：33

作者：

Ishii, Katsuya

Ozaki, Ryota

Kaneko, Kenji

Fukushima, Hisaaki

Masuda, Masataka ^{[1
]}

机构：

[1] Kyushu Univ, Grad Sch Engn, Dept Mat Sci & Engn, Fukuoka 8190395, Japan

[2] DENSO E&TS Training Ctr, Dept Technol, Aichi 4740011, Japan

[3] Sumitomo Light Met Ind Ltd, Dept Res & Dev, Nagoya, Aichi 4558670, Japan

来源：

CORROSION SCIENCE | 2007年 / 49卷 / 06期

关键词：

aluminum; polarization; SEM; passive films;

D O I：

10.1016/j.corsci.2006.12.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A device was developed for the continuous measurement of the open circuit corrosion rate of aluminum in deaerated water from hydrogen pressure, resulted from the cathodic reaction. Corrosion rate of aluminum coated by the passive oxide film was examined with respect to the corrosion phenomena using this device. From the results, it was found that the corrosion rate was dependent not only on the deterioration of the film, but also on the formation of pits and of corrosion products on the film. Furthermore, the deterioration of the film was independent on the pH of the water. The pits were most probably formed by the evolution of hydrogen gas at the cathode underneath the film followed by the formation of Al(OH)(4)(-). (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2581 / 2601

页数：21

共 17 条

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