Effect of Microstructure of X-120 Steel on CO2 Corrosion Inhibition by 2-Mercaptobenzimidazole

被引：5

作者：

Larios-Galvez, A. K. ^{[1
]}

Rodriguez-Clemente, E. ^{[2
]}

Serna, S. ^{[1
]}

Campillo Illanez, B. ^{[3
,4
]}

Guardian, R. ^{[1
]}

Porcayo-Calderon, J. ^{[1
]}

Gonzalez-Rodriguez, J. G. ^{[1
]}

机构：

[1] Univ Autonoma Estado Morelos, CIICAp, Av Univ 1001, Cuernavaca 62209, Morelos, Mexico

[2] Univ Autonoma Metropolitana Azcapotzalco, Ing Mat, Av San Pablo 180, Mexico City 02200, DF, Mexico

[3] Univ Nacl Autonoma Mexico, Fac Quim, Ciudad De Mexico, Mexico

[4] Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Av Univ 1001, Cuernavaca 62209, Morelos, Mexico

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2019年 / 28卷 / 11期

关键词：

CO2; corrosion; high-strength steel; inhibitor; CARBON-STEEL; MILD-STEEL; MOLECULAR-STRUCTURE; STAINLESS-STEEL; FORMATION WATER; ACETIC-ACID; PERFORMANCE; ADSORPTION; BEHAVIOR; CHLORIDE;

D O I：

10.1007/s11665-019-04398-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The use of 2-mercaptobenzimidazole (2MBI) as corrosion inhibitor for API X-120 pipeline with two different microstructures in a CO2-saturated 3.5% NaCl solution has been investigated. One microstructure was predominantly martensitic and bainitic (steel A), whereas the second one was mainly ferritic (steel B). It was found that 2MBI behaved as a mixed type of corrosion inhibitor and it changed the corrosion-controlled mechanism. In the uninhibited solution, steel A had a dissolution rate higher than steel B. However, in the presence of inhibitor, dissolution rate for steel A was lower than that for B because the film-formed inhibitor is adsorbed in a better way for steel A which has smaller precipitates distributed in a more homogeneous way than that for steel B.

引用

页码：6885 / 6896

页数：12

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