The role of chloride ion on the atmospheric corrosion of steel and corrosion resistance of Sn-bearing steel

被引：86

作者：

Kamimura, T. ^{[1
]}

Kashima, K. ^{[1
]}

Sugae, K. ^{[1
]}

Miyuki, H. ^{[1
]}

Kudo, T. ^{[1
]}

机构：

[1] Sumitomo Met Ind Ltd, Corp Res & Dev Labs, Amagasaki, Hyogo 6600891, Japan

来源：

CORROSION SCIENCE | 2012年 / 62卷

关键词：

Steel; Low alloy steel; X-ray diffraction; Atmospheric corrosion; Rust; THIN ELECTROLYTE LAYERS; HIGH-STRENGTH STEEL; HYDROGEN ENTRY; WEATHERING STEEL; RUST LAYER; PROTECTIVE ABILITY; IRON; MECHANISM; REDUCTION;

D O I：

10.1016/j.corsci.2012.04.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to clarify the role of chloride ion on the atmospheric corrosion of steels, the minute anode chamber simulating local anode sites on steels was set up, and the pH change was measured. The pH was affected by the chloride concentration, and decreased to 1.5 with the formation of beta-FeOOH. The role of chloride ion on the corrosion is discussed from the viewpoint of solubility and hydrolysis of Fe3+-species. An atmospheric corrosion model under high chloride content environments is proposed. Based on the model, it was found that Sn-bearing steel exhibits the superior atmospheric corrosion resistance. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：34 / 41

页数：8

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