Effect of acetic acid on CO2 corrosion of 3Cr low-alloy steel

Zhijun Jia; Xiaogang Li; Cuiwei Du; Zhiyong Liu; Jin Gao

doi:10.1016/j.matchemphys.2011.08.034

Effect of acetic acid on CO₂ corrosion of 3Cr low-alloy steel

Zhijun Jia
, Xiaogang Li^*
, Cuiwei Du
, Zhiyong Liu
, Jin Gao

^*Corresponding author for this work

University of Science and Technology Beijing

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

The effect of acetic acid on the corrosion behaviors of 3Cr low-alloy steel in CO₂-containing sodium chloride solution was investigated by immersion test and electrochemical measurements. It is found that with addition of acetic acid the corrosion scale becomes much looser and sheds off easily. To the corrosion mechanism, the cathodic reaction will be enhanced by the direct reduction of un-dissociated acetic acid and the increase of anodic reaction rate is attributed to the fact that acetic acid degrades the protectiveness of corrosion scale and enhances corrosion of steel by decreasing the FeCO ₃ supersaturation in solution. The dissolution of Cr and the formation of Cr(OH)₃ dominate the anodic process when 3Cr low-alloy steel is immersed in CO₂-saturated solution with no acetic acid. And the dissolution of Fe is predominant in the anodic reaction and the steel is in active dissolution state in the presence of acetic acid.

Original language	English
Pages (from-to)	258-263
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	132
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2011.08.034
State	Published - 15 Feb 2012
Externally published	Yes

Keywords

C. SEM
D. Corrosion

Access to Document

10.1016/j.matchemphys.2011.08.034

Cite this

@article{b8e118a1a00f4296ae2b0b098863595f,

title = "Effect of acetic acid on CO2 corrosion of 3Cr low-alloy steel",

abstract = "The effect of acetic acid on the corrosion behaviors of 3Cr low-alloy steel in CO2-containing sodium chloride solution was investigated by immersion test and electrochemical measurements. It is found that with addition of acetic acid the corrosion scale becomes much looser and sheds off easily. To the corrosion mechanism, the cathodic reaction will be enhanced by the direct reduction of un-dissociated acetic acid and the increase of anodic reaction rate is attributed to the fact that acetic acid degrades the protectiveness of corrosion scale and enhances corrosion of steel by decreasing the FeCO 3 supersaturation in solution. The dissolution of Cr and the formation of Cr(OH)3 dominate the anodic process when 3Cr low-alloy steel is immersed in CO2-saturated solution with no acetic acid. And the dissolution of Fe is predominant in the anodic reaction and the steel is in active dissolution state in the presence of acetic acid.",

keywords = "C. SEM, D. Corrosion",

author = "Zhijun Jia and Xiaogang Li and Cuiwei Du and Zhiyong Liu and Jin Gao",

year = "2012",

month = feb,

day = "15",

doi = "10.1016/j.matchemphys.2011.08.034",

language = "英语",

volume = "132",

pages = "258--263",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier B.V.",

number = "2-3",

}

TY - JOUR

T1 - Effect of acetic acid on CO2 corrosion of 3Cr low-alloy steel

AU - Jia, Zhijun

AU - Li, Xiaogang

AU - Du, Cuiwei

AU - Liu, Zhiyong

AU - Gao, Jin

PY - 2012/2/15

Y1 - 2012/2/15

N2 - The effect of acetic acid on the corrosion behaviors of 3Cr low-alloy steel in CO2-containing sodium chloride solution was investigated by immersion test and electrochemical measurements. It is found that with addition of acetic acid the corrosion scale becomes much looser and sheds off easily. To the corrosion mechanism, the cathodic reaction will be enhanced by the direct reduction of un-dissociated acetic acid and the increase of anodic reaction rate is attributed to the fact that acetic acid degrades the protectiveness of corrosion scale and enhances corrosion of steel by decreasing the FeCO 3 supersaturation in solution. The dissolution of Cr and the formation of Cr(OH)3 dominate the anodic process when 3Cr low-alloy steel is immersed in CO2-saturated solution with no acetic acid. And the dissolution of Fe is predominant in the anodic reaction and the steel is in active dissolution state in the presence of acetic acid.

AB - The effect of acetic acid on the corrosion behaviors of 3Cr low-alloy steel in CO2-containing sodium chloride solution was investigated by immersion test and electrochemical measurements. It is found that with addition of acetic acid the corrosion scale becomes much looser and sheds off easily. To the corrosion mechanism, the cathodic reaction will be enhanced by the direct reduction of un-dissociated acetic acid and the increase of anodic reaction rate is attributed to the fact that acetic acid degrades the protectiveness of corrosion scale and enhances corrosion of steel by decreasing the FeCO 3 supersaturation in solution. The dissolution of Cr and the formation of Cr(OH)3 dominate the anodic process when 3Cr low-alloy steel is immersed in CO2-saturated solution with no acetic acid. And the dissolution of Fe is predominant in the anodic reaction and the steel is in active dissolution state in the presence of acetic acid.

KW - C. SEM

KW - D. Corrosion

UR - https://www.scopus.com/pages/publications/84856607073

U2 - 10.1016/j.matchemphys.2011.08.034

DO - 10.1016/j.matchemphys.2011.08.034

M3 - 文章

AN - SCOPUS:84856607073

SN - 0254-0584

VL - 132

SP - 258

EP - 263

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 2-3

ER -

Effect of acetic acid on CO₂ corrosion of 3Cr low-alloy steel

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this