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
收藏
页码：6885 / 6896
页数：12
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