Please wait a minute...
Acta Metall Sin  2011, Vol. 47 Issue (4): 449-454    DOI:
论文 Current Issue | Archive | Adv Search |
CORROSION RESISTANCES OF PASSIVE FILMS ON LOW-CARBON REBAR AND FINE-GRAINED REBAR IN ALKALINE MEDIA
SHI Jinjie, SUN Wei, GENG Guoqing
College of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing 211189
Cite this article: 

SHI Jinjie SUN Wei GENG Guoqing. CORROSION RESISTANCES OF PASSIVE FILMS ON LOW-CARBON REBAR AND FINE-GRAINED REBAR IN ALKALINE MEDIA. Acta Metall Sin, 2011, 47(4): 449-454.

Download:  PDF(922KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  The passive ranges of low-carbon rebar and fine-grained rebar in simulated concrete pore solution with pH13.0 were determined by means of cyclic voltammetry and potentiodynamic polarization curves. Chronopotentiometry was used to obtain steady state conditions for the formation of passive films on rebar samples at different anodic potentials. Electrochemical impedance spectroscopy and Mott-Schottky curves were employed to compare the passive films formed at different potentials. Additionally, cyclic polarization curves were used to compare the corrosion resistances of passive films formed on the two rebars in alkaline media with or without Cl-. The results show that the passive ranges of the two rebars are all between -0.25 and +0.6 V, and the more stable passive films can be formed on both rebars at the anodic potential of +0.3 V. In the absence of Cl-, the stability and corrosion resistance of the passive film formed on the fine-grained rebar are better than those of low-carbon rebar. However, the pitting corrosion resistance of the former is somehow lower than that of the latter in the presence of Cl-. The amounts of grain boundary and trace elements are responsible for the lower corrosion resistance of fine-grained rebar.
Key words:  fine-grained rebar      concrete      passivation      pitting corrosion      electrochemical method     
Received:  06 October 2010     
ZTFLH: 

TG 174.3

 
Fund: 

Supported by National Basic Research Program of China (No.2009CB623203), National High Technology Research and Development Program of China
(No.2008AA030704) and The Scientific Research Foundation of Graduate School of Southeast University (No.YBJJ1017)

URL: 

https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2011/V47/I4/449

[1] Ralston K D, Birbilis N. Corrosion, 2010; 66: 075005

[2] Afshari V, Dehghanian C. Corros Sci, 2009; 51: 1844

[3] Pisarek M, Kedzierzawski P, Janik–Czachor M, Kurzydlowski K J. J Solid State Electrochem, 2009; 13: 283

[4] Schino A D, Barteri M, Kenny J M. J Mater Sci, 2003; 38: 4725

[5] Freire L, N´ovoa X R, Montemor M F, Carmezim M J. Mater Chem Phys, 2009; 114: 962

[6] Sanchez M, Gregori J, Alonso M C, Garcia–Jareno J J, Vicente F. Electrochim Acta, 2006; 52: 47

[7] Wu Q, Liu Y, Du R G, Lin C J. Acta Metall Sin, 2008; 44: 346

(吴群, 刘玉, 杜荣归, 林昌健. 金属学报, 2008; 44: 346)

[8] SanchezM,Gregori J, Alonso C, Garcia–Jareno J J, Takenouti H, Vicente F. Electrochim Acta, 2007; 52: 7634

[9] Freire L, Carmezim M J, Ferreira M G S, Montemor M F. Electrochim Acta, 2010; 55: 6174

[10] Andrade C, Merino P, Novoa X R, Perez M C, Soler L. Mater Sci Forum, 1995; 192–194: 891

[11] Ghods P, Isgor O B, McRae G, Miller T. Cem Concr Compos, 2009; 31: 2

[12] Li L, Sagues A A. Corrosion, 2002; 58: 305

[13] Pourasee A, Hansson C M. Cem Concr Res, 2007; 37: 1127

[14] Zhang F, Pan J S, Lin C J. Corros Sci, 2009; 51: 2130

[15] Jiang J H, Yuan Y S, Li F M, Wang B, Ji Y S. J Build Mater, 2009; 12: 523

(蒋建华, 袁迎曙, 李富民, 王 波, 姬永生. 建筑材料学报, 2009; 12: 523)
[1] XIA Dahai, JI Yuanyuan, MAO Yingchang, DENG Chengman, ZHU Yu, HU Wenbin. Localized Corrosion Mechanism of 2024 Aluminum Alloy in a Simulated Dynamic Seawater/Air Interface[J]. 金属学报, 2023, 59(2): 297-308.
[2] HU Wenbin, ZHANG Xiaowen, SONG Longfei, LIAO Bokai, WAN Shan, KANG Lei, GUO Xingpeng. Corrosion Behavior of AlCoCrFeNi2.1 Eutectic High-Entropy Alloy in Sulfuric Acid Solution[J]. 金属学报, 2023, 59(12): 1644-1654.
[3] SUN Yangting, LI Yiwei, WU Wenbo, JIANG Yiming, LI Jin. Effect of Inclusions on Pitting Corrosion of C70S6 Non-Quenched and Tempered Steel Doped with Ca and Mg[J]. 金属学报, 2022, 58(7): 895-904.
[4] ZHENG Chun, LIU Jiabin, JIANG Laizhu, YANG Cheng, JIANG Meixue. Effect of Tensile Deformation on Microstructure and Corrosion Resistance of High Nitrogen Austenitic Stainless Steels[J]. 金属学报, 2022, 58(2): 193-205.
[5] HUANG Yichuan, WANG Qing, ZHANG Shuang, DONG Chuang, WU Aimin, LIN Guoqiang. Optimization of Stainless Steel Composition for Fuel Cell Bipolar Plates[J]. 金属学报, 2021, 57(5): 651-664.
[6] LV Chenxi, SUN Yangting, CHEN Bin, JIANG Yiming, LI Jin. Influence of Potentionstatic Pulse Technique on Pitting Behavior and Pitting Resistance of 317L Stainless Steel[J]. 金属学报, 2021, 57(12): 1607-1613.
[7] CAO Fengting, WEI Jie, DONG Junhua, KE Wei, WANG Tiegang, FAN Qixiang. Corrosion Inhibition Behavior of 1-Hydroxyethylidene-1, 1-Diphosphonic Acid on 20SiMn Steel in Simulated Concrete Pore Solution Containing Cl-[J]. 金属学报, 2020, 56(6): 898-908.
[8] Kaiqiang LI, Lujia YANG, Yunze XU, Xiaona WANG, Yi HUANG. Influence of SO42- on the Corrosion Behavior of Q235B Steel Bar in Simulated Pore Solution[J]. 金属学报, 2019, 55(4): 457-468.
[9] FENG Hao,LI Huabing,LU Pengchong,YANG Chuntian,JIANG Zhouhua,WU Xiaolei. Investigation on Microbiologically Influenced Corrosion Behavior of CrCoNi Medium-Entropy Alloy byPseudomonas Aeruginosa[J]. 金属学报, 2019, 55(11): 1457-1468.
[10] Li FAN, Haiyan CHEN, Yaohua DONG, Xueying LI, Lihua DONG, Yansheng YIN. Corrosion Behavior of Fe-Based Laser Cladding Coating in Hydrochloric Acid Solutions[J]. 金属学报, 2018, 54(7): 1019-1030.
[11] Lining XU,Jinyang ZHU,Bei WANG. Influence of Cr Content and pH Value on the Semi-Passivation Behavior of Low Cr Pipeline Steels[J]. 金属学报, 2017, 53(6): 677-683.
[12] Yao WANG,Chunfu LI,Yuanhua LIN. Electronic Theoretical Study of the Influence of Cr on Corrosion Resistance of Fe-Cr Alloy[J]. 金属学报, 2017, 53(5): 622-630.
[13] Nan PIAO,Ji CHEN,Chengjiang YIN,Cheng SUN,Xinghang ZHANG,Zhanwen WU. INVESTIGATION ON PITTING CORROSION BEHAVIOR OF ULTRAFINE-GRAINED 304L STAINLESS STEEL IN Cl- CONTAINING SOLUTION[J]. 金属学报, 2015, 51(9): 1077-1084.
[14] Haiwei HUANG, Zhenbo WANG, Li LIU, Xingping YONG, Ke LU. FORMATION OF A GRADIENT NANOSTRUCTURED SURFACE LAYER ON A MARTENSITIC STAINLESS STEEL AND ITS EFFECTS ON THE ELECTRO- CHEMICAL CORROSION BEHAVIOR[J]. 金属学报, 2015, 51(5): 513-518.
[15] WANG Yong, ZHENG Yugui, WANG Jianqiang, LI Meiling, SHEN Jun. PASSIVATION BEHAVIOR OF Fe-BASED AMORPHOUS METALLIC COATING IN NaCl AND H2SO4 SOLUTIONS[J]. 金属学报, 2015, 51(1): 49-56.
No Suggested Reading articles found!