Effect of Humidity on Corrosion Behavior of Low Carbon Steel in Atmosphere Containing SO<sub>2</sub>

LIN Cui; CHEN San-juan; XIAO Zhi-yang

Materials and Mechanical Engineering > 2012 > 36(1): 16-22.

LIN Cui, CHEN San-juan, XIAO Zhi-yang. Effect of Humidity on Corrosion Behavior of Low Carbon Steel in Atmosphere Containing SO₂[J]. Materials and Mechanical Engineering, 2012, 36(1): 16-22.

Citation:

LIN Cui, CHEN San-juan, XIAO Zhi-yang. Effect of Humidity on Corrosion Behavior of Low Carbon Steel in Atmosphere Containing SO₂[J]. Materials and Mechanical Engineering, 2012, 36(1): 16-22.

Citation:

LIN Cui, CHEN San-juan, XIAO Zhi-yang. Effect of Humidity on Corrosion Behavior of Low Carbon Steel in Atmosphere Containing SO₂[J]. Materials and Mechanical Engineering, 2012, 36(1): 16-22.

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Effect of Humidity on Corrosion Behavior of Low Carbon Steel in Atmosphere Containing SO₂

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Received Date: July 29, 2011

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Through simulated polluted atmospheric corrosion system, the effect of relative humidity(RH) on the corrosion morphology and the growth process of corrosion products of 20 low carbon steel in atmosphere containing 5×10-6 volume fraction SO2 was studied by means of optical microscopy, SEM, XRD and XPS. The results show that the corrosion products were mainly composed of α-FeOOH, γ-FeOOH, FeSO4, Fe3O4, γ-Fe2O3 under the enviroment of different relative humidities, and the concentration of FeOOH increased with increase of RH, and the corrosion rate increased, too. When the RH were 65% and 75%, the corrosion curves was divided into two stages which respectively followed by exponential increase and the linear growth. When the RH were 85% and 95%, the corrosion curves followed by linear growth. At the enviroment of RH of 65%, the corrosion products grew in the form of corrosion-ring. With increase of RH, the filiform corrosion products were found around the corrosion-ring. When the RH was 95%, it was filiform corrosion products with cellular corrosion products, and obvious pits were observed under the cellular corrosion products.
- sulfur dioxide,
- relative humidity,
- low carbon steel,
- corrosion behavior,
- atmosphere

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[1]	李巧霞, 王振尧, 韩薇, 等. 碳钢和耐候钢的大气腐蚀[J]. 中国腐蚀与防护学报, 2009, 29(5): 394-400.
[2]	刘永辉, 张佩芳. 金属腐蚀学原理[M]. 北京: 航空工业出版社, 1993.
[3]	梁彩凤. 钢在中国大陆的大气腐蚀研究[J]. 电化学, 2001, 7(2): 215-219.
[4]	SYED S. Atmospheric corrosion of hot and cold rolled carbon steel under field exposure in Saudi Arabia[J]. Corrosion Science, 2008, 50: 1779-1784.
[5]	YAMASHITA M, KONISHI H, KOZAKURA T, et al. In situ observation of initial rust formation process on carbon steel under Na2SO4 and NaCl solution films with wet/dry cycles using synchrotron radiation X-rays[J]. Corrosion Science, 2005, 47: 2492-2498.
[6]	DILLMANN P, MAZAUDIER F, HOERLE S. Advances in understanding atmospheric corrosion of iron partⅠ: rust characterization of ancient ferrous artefacts exposed to indoor atmospheric corrosion[J]. Corrosion Science, 2004, 46: 1401-1429.
[7]	汪川, 王振尧, 柯伟.Q235碳钢在SO2气体中初期腐蚀行为[J]. 金属学报, 2008, 44(6): 729-734.
[8]	WEISSENRIEDER J, KLEBER C, SCHREINER M, et al. In situ studies of sulfate nest formation on iron[J]. Journal of the Electrochemical Society, 2004, 151(9): 497-504.
[9]	SEI J O, COOK D C, TOWNSEND H E. Atmospheric corrosion of different steels in marine, rural and industrial environments[J]. Corrosion Science, 1999, 41: 1687-1702.
[10]	ABBASHER G, HARTHI A, ELZAIN M. Atmospheric corrosion of mild steel in Oman[J]. Hyperfine Interact, 2006, 167: 753-758.
[11]	CASTANO J G, BOTERO C A, RESTREPO A H, et al. Atmospheric corrosion of carbon steel in Columbia[J]. Corrosion Science, 2010, 52: 216-223.
[12]	ASTRUP T, WADSAKM J, LEYGRAF C, et al. In situ studies of the initial atmospheric corrosion of copper influence of humidity, sulfur dioxide, ozone, and nitrogen dioxide[J]. Journal of the Electrochemical Society, 2000, 147(7): 2543-2551.
[13]	王为, 郭鹤桐, 高建平. 20#碳钢在三元复合驱溶液中的腐蚀行为[J]. 中国腐蚀与防护学报, 1998, 18(3): 203-208.
[14]	OLSSON C O A, LANDOLT D. Atmospheric oxidation of a Nb-Zr alloy studied with XPS[J]. Corrosion Science, 2004, 46: 213-224.
[15]	HRYNIEWICZ T, ROKOSZ K, ROKICKI R. Electrochemical and XPS studies of AISI 316L stainless steel after electropolishing in a magnetic field[J]. Corrosion Science, 2008, 50: 2676-2681.

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Effect of Humidity on Corrosion Behavior of Low Carbon Steel in Atmosphere Containing SO₂