The Initial Corrosion Behavior of Carbon Steel Exposed to the Coastal-Industrial Atmosphere in Hongyanhe
Received date: 2020-01-07
Revised date: 2020-03-29
Online published: 2020-04-27
Supported by
National Natural Science Foundation of China(51671197)
The atmospheric corrosion of carbon steel is an extensive topic that has been studied by many authors who have proposed many mechanisms and techniques for studying the phenomena involved and have reported long term exposure data in many different regions throughout the world. However, there are few literatures that have discussed the corrosion results of carbon steel exposed for short-term time which can contribute to the understanding of the initial corrosion mechanisms. Therefore in this work, mass-loss measurement, SEM, XRD, infrared spectroscopy and electrochemical techniques have been used to investigate the initial corrosion evaluation of carbon steel exposed to a coastal-industrial atmospheric environment in Hongyanhe. Mass-loss results show that the short-term corrosion kinetic of carbon steel is in good fitting with linear function, and the average corrosion rate fluctuates over time and don't show the downward trend observed in long-term exposure experiments. Lepidocrocite, goethite and magnetite are identified in corrosion products formed on the surface of exposed carbon steel samples. The content of lepidocrocite shows a decreasing trend over exposure time, while goethite is the opposite. Magnetite appears in the later stages and keeps stable in amount. Pitting and an irregular localized corrosion can be observed clearly on the surface of carbon steel specimens exposed for 10 d. The corrosion product at pitting regions is circular flowery shape which varies in details as the physical and chemical environments change. The rust layer grows over time and eventually covers the entire surface of carbon steel samples exposed for more than 60 d, yet its thickness is uneven. The surface of rust layer has many nest-shaped structures that can't barricade the physical transmission effectively. The protective effect of rust layer has been further discussed in combination with electrochemical results.
Key words： carbon steel; atmospheric corrosion; morphology; corrosion product; electrochemistry
Xuexin SONG , Songpeng HUANG , Chuan WANG , Zhenyao WANG . The Initial Corrosion Behavior of Carbon Steel Exposed to the Coastal-Industrial Atmosphere in Hongyanhe[J]. Acta Metall Sin, 2020 , 56(10) : 1355 -1365 . DOI: 10.11900/0412.1961.2020.00010
| [1] | Feliu S, Morcillo M. Atmospheric Corrosion [M]. New York: John Wiley and Sons, 1982: 913 |
| [2] | Almeida E, Morcillo M, Rosales B, et al. Atmospheric corrosion of mild steel. Part I—Rural and urban atmospheres [J]. Mater. Corros., 2000, 51: 859 |
| [3] | Almeida E, Morcillo M, Rosales B. Atmospheric corrosion of mild steel. Part II—Marine atmospheres [J]. Mater. Corros., 2000, 51: 865 |
| [4] | Natesan M, Venkatachari G, Palaniswamy N. Kinetics of atmospheric corrosion of mild steel, zinc, galvanized iron and aluminium at 10 exposure stations in India [J]. Corros. Sci., 2006, 48: 3584 |
| [5] | de la Fuente D, Díaz I, Simancas J, et al. Long-term atmospheric corrosion of mild steel [J]. Corros. Sci., 2011, 53: 604 |
| [6] | Wang L, Guo C Y, Xiao K, et al. Corrosion behavior of carbon steels Q235 and Q450 in dry hot atmosphere at Turpan district for four years [J]. J. Chin. Soc. Corros. Prot., 2018, 38: 431 |
| [6] | (王 力, 郭春云, 肖 葵等. Q235和Q450钢在吐鲁番干热大气环境中长周期暴晒时的腐蚀行为研究 [J]. 中国腐蚀与防护学报, 2018, 38: 431) |
| [7] | Oh S J, Cook D C, Townsend H E. Atmospheric corrosion of different steels in marine, rural and industrial environments [J]. Corros. Sci., 1999, 41: 1687 |
| [8] | Liang C F, Hou W T. Sixteen-year atmospheric corrosion exposure study of steels [J]. J. Chin. Soc. Corros. Prot., 2005, 25: 1 |
| [8] | (梁彩凤, 侯文泰. 碳钢、低合金钢16年大气暴露腐蚀研究 [J]. 中国腐蚀与防护学报, 2005, 25: 1) |
| [9] | Lan T T N, Thoa N T P, Nishimura R, et al. Atmospheric corrosion of carbon steel under field exposure in the southern part of Vietnam [J]. Corros. Sci., 2006, 48: 179 |
| [10] | Casta?o J G, Botero C A, Restrepo A H, et al. Atmospheric corrosion of carbon steel in Colombia [J]. Corros. Sci., 2010, 52: 216 |
| [11] | Asami K, Kikuchi M. In-depth distribution of rusts on a plain carbon steel and weathering steels exposed to coastal-industrial atmosphere for 17 years [J]. Corros. Sci., 2003, 45: 2671 |
| [12] | Wang Z Y, Yu Q C, Wang C, et al. Corrosion behaviors of steels in marine atmospheric environment with SO2 pollution [J]. Chin. Sci. Bull., 2012, 57: 2991 |
| [12] | (王振尧, 于全成, 汪 川等. 在含硫污染的海洋大气环境中核电用钢的腐蚀行为 [J]. 科学通报, 2012, 57: 2991) |
| [13] | Allam I M, Arlow J S, Saricimen H. Initial stages of atmospheric corrosion of steel in the Arabian Gulf [J]. Corros. Sci., 1991, 32: 417 |
| [14] | Han W, Yu G C, Wang Z Y, et al. Characterisation of initial atmospheric corrosion carbon steels by field exposure and laboratory simulation [J]. Corros. Sci., 2007, 49: 2920 |
| [15] | Cao G W, Liu Y W, Zhang D D, et al. Corrosion behavior of Q235 and Q345 carbon steel in Hongyanhe atmosphere [J]. Corros. Prot., 2018, 39: 24 |
| [15] | (曹公望, 刘雨薇, 张丹丹等. Q235和Q345钢在红沿河大气环境中的腐蚀行为 [J]. 腐蚀与防护, 2018, 39: 24) |
| [16] | Raman A, Kuban B, Razvan A. The application of infrared spectroscopy to the study of atmospheric rust systems—I. Standard spectra and illustrative applications to identify rust phases in natural atmospheric corrosion products [J]. Corros. Sci., 1991, 32: 1295 |
| [17] | Qu Q, Yan C W, Zhang L, et al. Synergism of NaCl and SO2 in the initial atmospheric corrosion of A3 steel [J]. Acta Metall. Sin., 2002, 38: 1062 |
| [17] | (屈 庆, 严川伟, 张 蕾等. NaCl和SO2在A3钢初期大气腐蚀中的协同效应 [J]. 金属学报, 2002, 38: 1062) |
| [18] | Sagoe-Crentsil K K, Glasser F P. Constitution of green rust and its significance to the corrosion of steel in portland cement [J]. Corrosion, 1993, 49: 457 |
| [19] | Antunes R A, Costa I, de Faria D L A. Characterization of corrosion products formed on steels in the first months of atmospheric exposure [J]. Mater. Res., 2003, 6: 403 |
| [20] | Weissenrieder J, Kleber C, Schreiner M, et al. In situ studies of sulfate nest formation on iron [J]. J. Electrochem. Soc., 2004, 151: B497 |
| [21] | Ma Y T, Li Y, Wang F H. Corrosion of low carbon steel in atmospheric environments of different chloride content [J]. Corros. Sci., 2009, 51: 997 |
| [22] | Guo M X, Pan C, Wang Z Y, et al. A study on the initial corrosion behavior of carbon steel exposed to a simulated coastal-industrial atmosphere [J]. Acta Metall. Sin., 2018, 54: 65 |
| [22] | (郭明晓, 潘 晨, 王振尧等. 碳钢在模拟海洋工业大气环境中初期腐蚀行为研究 [J]. 金属学报, 2018, 54: 65) |
| [23] | Arroyave C, Morcillo M. Atmospheric corrosion products in iron and steels [J]. Trends Corros. Res., 1997, 2: 1 |
| [24] | R?sler K, Baum H, Kukurs O, et al. Character and behavior of a layer of corrosion products on low-alloy steels in natural conditions [J]. Prot. Met., 1981, 17: 514 |
| [25] | Yamashita M, Miyuki H, Matsuda Y, et al. The long term growth of the protective rust layer formed on weathering steel by atmospheric corrosion during a quarter of a century [J]. Corros. Sci., 1994, 36: 283 |
| [26] | Yang X M. Study on the infrared spectra and raman spectra of steel rusty layer with atmospheric corrosion [J]. Spectrosc. Spec. Anal., 2006, 26: 2247 |
| [26] | (杨晓梅. 钢大气腐蚀锈层的红外、拉曼光谱研究 [J]. 光谱学与光谱分析, 2006, 26: 2247) |
| [27] | Nishimura T, Katayama H, Noda K, et al. Electrochemical behavior of rust formed on carbon steel in a wet/dry environment containing chloride ions [J]. Corrosion, 2000, 56: 935 |
| [28] | Hu H L, Li N. Electrochemical Measurment [M]. Beijing: National Defence Industry Press, 2011: 115 |
| [28] | (胡会利, 李 宁. 电化学测量 [M]. 北京: 国防工业出版社, 2011: 115) |
| [29] | Kihira H, Ito S, Murata T. Quantitative classification of patina conditions for weathering steel using a recently developed instrument [J]. Corrosion, 1989, 45: 347 |
| [30] | Matsushima I, Ueno T. On the protective nature of atmosph rust on low-alloy steel [J]. Corros. Sci., 1971, 11: 129 |
| [31] | Suzuki I, Masuko N, Hisamatsu Y. Electrochemical properties of iron rust [J]. Corros. Sci., 1979, 19: 521 |
| [32] | Pan C, Guo M X, Han W, et al. Study of corrosion evolution of carbon steel exposed to an industrial atmosphere [J]. Corros. Eng. Sci. Technol., 2019, 54: 241 |
/
| 〈 |
|
〉 |
