The incidence of chromium-rich corrosion products on the efficiency of an imidazoline-based inhibitor used for CO2 corrosion prevention

被引：36
作者：
Paolinelli, L. D. [1 ]
Perez, T. [2 ]
Simison, S. N. [1 ]
机构：
[1] UNMdP, Div Corros INTEMA, Mar Del Plata, Buenos Aires, Argentina
[2] R&D TENARIS SIDERCA, RA-2804 Campana, Bs As, Argentina
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 126卷 / 03期
关键词：
Corrosion; Microstructure; SEM; EDS; CARBON-DIOXIDE CORROSION; STEEL MICROSTRUCTURE; SEM CHARACTERIZATION; MOLECULAR-STRUCTURE; MILD-STEEL; LAYERS; PERFORMANCE; OIL; XPS; EIS;
D O I：
10.1016/j.matchemphys.2010.12.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A study has been conducted to analyze the influence of 1% Cr additions, microstructure, and pre-corrosion on the performance of CO2 corrosion inhibitors for C-Mn steels. Two carbon steels with two different microstructures were tested in a deoxygenated 5 wt.% NaCl solution, saturated with CO2 at 40 degrees C, pH 6. An imidazoline-based inhibitor was added after different pre-corrosion periods. Its performance was studied by means of d.c. electrochemical measurements, SEM and EDS. The results demonstrated a detrimental effect of 1% Cr and pre-corrosion on the inhibitor efficiency. It was also proven that the impact of precorrosion depends on microstructure and chemical composition. (c) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：938 / 947
页数：10
相关论文
共 35 条
  • [1] BAILEY G, 1986, IND CORROS, P8
  • [2] On electrochemical techniques for interface inhibitor research
    Cao, C
    [J]. CORROSION SCIENCE, 1996, 38 (12) : 2073 - 2082
  • [3] Effect of chromium on the pitting resistance of oil tube steel in a carbon dioxide corrosion system
    Chen, CF
    Lu, MX
    Sun, DB
    Zhang, ZH
    Chang, W
    [J]. CORROSION, 2005, 61 (06) : 594 - 601
  • [4] Role of conductive corrosion products in the protectiveness of corrosion layers
    Crolet, JL
    Thevenot, N
    Nesic, S
    [J]. CORROSION, 1998, 54 (03) : 194 - 203
  • [5] DEWAARD C, 1995, NACE CORR 95 HOUST T
  • [6] DUGSTAD A, 2000, NACE CORR 2000 ORL F
  • [7] FU SL, 1996, NACE CORR 96 HOUST T
  • [8] GULBRANDSEN E, 2000, NACE CORR 2000 ORL F
  • [9] GULBRANDSEN E, 1998, NACE CORR 98 HOUST T
  • [10] Jones D.A., 1991, Principles and prevention of corrosion
1234