| Effect of calcium ions on pitting corrosion and inhibition performance in CO2 corrosion of N80 steel; Effect of calcium ions on pitting corrosion and inhibition performance in CO2 corrosion of N80 steel | |
| X. Jiang; Y. G. Zheng; D. R. Qu; W. Ke | |
| 2006 ; 2006 | |
| Source Publication | Corrosion Science
 ; Corrosion Science
|
| ISSN | 0010-938X ; 0010-938X |
| Volume | 48Issue:10Pages:3091-3108 |
| Abstract | The electrochemical impedance spectroscopy (EIS) and polarization resistance technique were used to investigate the susceptibility of N80 steel to pitting corrosion under stagnant condition and the corrosion behavior under flowing condition with/without precorrosion in 3% NaCl solution, in 3% NaCl + 1.5% CaCl2 solution and in 4.6% NaCl solution (equivalent Cl- concentration to 3% NaCI + 1.5% CaCl2 solution) saturated by CO2 at 57 degrees C. The results showed that under stagnant condition the initiation period of pitting corrosion decreased with increasing Cl- concentration, but at the same Cl- concentration, Ca2+ could prolong the initiation period. Under flowing condition the corrosion rate without stagnant precorrosion was bigger than that with precorrosion, and the corrosion rate with precorrosion in 3% NaCl solution was bigger than that in 3% NaCl + 1.5% CaCl2 solution. Inhibition of quaternary alkynoxymetbyl amine (IMC-80-Q) under stagnant condition showed that the optimum inhibitor concentration significantly increased with the increase of Cl- concentration from 3% NaCl solution to 4.6% NaCI solution, and for the solutions with the same Cl- concentration, adding Ca2+ did not change the optimum inhibitor concentration. (c) 2006 Published by Elsevier Ltd.; The electrochemical impedance spectroscopy (EIS) and polarization resistance technique were used to investigate the susceptibility of N80 steel to pitting corrosion under stagnant condition and the corrosion behavior under flowing condition with/without precorrosion in 3% NaCl solution, in 3% NaCl + 1.5% CaCl2 solution and in 4.6% NaCl solution (equivalent Cl- concentration to 3% NaCI + 1.5% CaCl2 solution) saturated by CO2 at 57 degrees C. The results showed that under stagnant condition the initiation period of pitting corrosion decreased with increasing Cl- concentration, but at the same Cl- concentration, Ca2+ could prolong the initiation period. Under flowing condition the corrosion rate without stagnant precorrosion was bigger than that with precorrosion, and the corrosion rate with precorrosion in 3% NaCl solution was bigger than that in 3% NaCl + 1.5% CaCl2 solution. Inhibition of quaternary alkynoxymetbyl amine (IMC-80-Q) under stagnant condition showed that the optimum inhibitor concentration significantly increased with the increase of Cl- concentration from 3% NaCl solution to 4.6% NaCI solution, and for the solutions with the same Cl- concentration, adding Ca2+ did not change the optimum inhibitor concentration. (c) 2006 Published by Elsevier Ltd. |
| description.department | chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, liaoning prov, peoples r china.;zheng, yg (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, liaoning prov, peoples r china;ygzheng@imr.ac.cn ; chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, liaoning prov, peoples r china.;zheng, yg (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, liaoning prov, peoples r china;ygzheng@imr.ac.cn |
| Keyword | Carbon Dioxide Corrosion Carbon Dioxide Corrosion Pitting Corrosion Pitting Corrosion Inhibitor Inhibitor Calcium Ions Calcium Ions Precorrosion Precorrosion Flow Flow Initiation Period Initiation Period Optimum Inhibitor Concentration Optimum Inhibitor Concentration Cl- Concentration Cl- Concentration Carbon-dioxide Corrosion Carbon-dioxide Corrosion Mild-steel Mild-steel Flow Conditions Flow Conditions Surface-film Surface-film Nacl Brine Nacl Brine Eis Eis Thiourea Thiourea Iron Iron |
| URL | 查看原文 ; 查看原文 |
| WOS ID | WOS:000241618700015 ; WOS:000241618700015 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/34279 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | X. Jiang,Y. G. Zheng,D. R. Qu,et al. Effect of calcium ions on pitting corrosion and inhibition performance in CO2 corrosion of N80 steel, Effect of calcium ions on pitting corrosion and inhibition performance in CO2 corrosion of N80 steel[J]. Corrosion Science, Corrosion Science,2006, 2006,48, 48(10):3091-3108, 3091-3108. |
| APA | X. Jiang,Y. G. Zheng,D. R. Qu,&W. Ke.(2006).Effect of calcium ions on pitting corrosion and inhibition performance in CO2 corrosion of N80 steel.Corrosion Science,48(10),3091-3108. |
| MLA | X. Jiang,et al."Effect of calcium ions on pitting corrosion and inhibition performance in CO2 corrosion of N80 steel".Corrosion Science 48.10(2006):3091-3108. |
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