Initiation and developmental stages of steel corrosion in wet H2S environments

被引：131

作者：

Bai, Pengpeng

Zhao, Hui

Zheng, Shuqi ^{[1
]}

Chen, Changfeng

机构：

[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

来源：

CORROSION SCIENCE | 2015年 / 93卷

关键词：

Carbon steel; AFM; XPS; Acid corrosion; Sulphidation; HYDROGEN-SULFIDE; STAINLESS-STEEL; SURFACE-CHEMISTRY; IRON SULFIDES; CARBON-STEEL; BEHAVIOR; MECHANISM; PRODUCTS; CRACKING; FILM;

D O I：

10.1016/j.corsci.2015.01.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The initiation and various developmental stages of steel corrosion in H2S environments were investigated using atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Results revealed that grain boundaries corrode at the initiation stage and that corrosion products initially form on both sides of the grain boundary and then accumulate. Corrosion products grew at the interface between the steel and corrosion product layer at the developmental stage. XPS analyses showed the composition and valence states of the corrosion products, and a model of the formation process of corrosion product films was proposed. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：109 / 119

页数：11

共 34 条

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