Effects of simulated acid rain on corrosion behaviour of Q235 steel in acidic soil

被引：29

作者：

Wu, Y. H. ^{[1
,2
]}

Liu, T. M. ^{[1
]}

Sun, C. ^{[2
]}

Xu, J. ^{[2
]}

Yu, C. K. ^{[2
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China

来源：

CORROSION ENGINEERING SCIENCE AND TECHNOLOGY | 2010年 / 45卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Q235; steel; Acid rain; Corrosion; Acidic soil; PIPE STEEL; ACIDIFICATION; CAPACITANCE; CRACKING;

D O I：

10.1179/147842209X12559428167643

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of simulated acid rain (SAR) on corrosion behaviours of Q235 steel in acidic soil were studied using potentiodynamic polarisation, electrochemical impedance spectroscopy measurements, scanning electron microscopy and X-ray diffraction. The results indicated that the SAR heavily increased the corrosion rate of the steel in the acidic soil. The corrosion rate of the steel increased with decreasing SAR pH values. The corrosive characteristics of the soil obviously increased because of leaching of the acid rain. The corrosion products of Q235 steel surface were mainly composed of Fe(2)O(3), Fe(3)O(4) and some soil components such as SiO(2).

引用

页码：136 / 141

页数：6

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