CORROSION BEHAVIORS AND RELATIVITY OF HIGH STRENGTH ALUMINUM ALLOY IN DIFFERENT SIMULATED SO2  ENVIRONMENT

J Chin Soc Corr Pro

2011, Vol. 31

Issue (6): 446-452 DOI:

Research Articles

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CORROSION BEHAVIORS AND RELATIVITY OF HIGH STRENGTH ALUMINUM ALLOY IN DIFFERENT SIMULATED SO₂ ENVIRONMENT

ZHOU Herong¹, MA Jian¹, LI Xiaogang², JIE Ganxin¹, FENG Hao¹, WANG Jun¹, ZHAO Yue¹

1. China National Electric Apparatus Research Institute, Guangzhou 510300
2. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083

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Abstract The corrosion behaviors of high strength aluminum alloy 7A04 in three different experimental conditions have been investigated by scanning electron microscope (SEM), energy dispersive X-ray detection (EDX), Fourier transform infrared(FTIR) and mass loss method, and the relativity has been analyged with the result of Jiangjin atmospheric environment. The results show that the corrosion product increases with testing hours prolonging, and the mass loss of corrosion product obeys the exponential rule as C=A•tⁿ. Surface observation shows that corrosion product is agglomerated and extended forth. The corrosion products are made up of alumina, aluminum sulfate hydrate and aluminum chloride. The simulation results for the aluminum alloy 7A04 at cyclic wet-heat conditions (40℃,8 h; 25℃, 16 h; 95% RH) in the 0.067% SO₂ polluted environment had better correlation with Jiangjin exposure result according to the mass loss data in all simulation methods in the paper.

Key words: aluminum alloys SO₂ environment mass loss method relativity

Received: 07 September 2010

ZTFLH:

TG172.3

Corresponding Authors: ZHOU Herong E-mail: zhouhr_9@163.com

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ZHOU Herong, MA Jian, LI Xiaogang, JIE Ganxin, FENG Hao, WANG Jun, ZHAO Yue. CORROSION BEHAVIORS AND RELATIVITY OF HIGH STRENGTH ALUMINUM ALLOY IN DIFFERENT SIMULATED SO₂ ENVIRONMENT. J Chin Soc Corr Pro, 2011, 31(6): 446-452.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2011/V31/I6/446

[1] Neufeld A K, Cole I S, Bond A M, et al. The initial mechanism of corrosion of zinc by sodium chloride particle deposition[J]. Corros. Sci., 2002, 44: 555-561

[2] 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: 1687-1702

[3] Zhou H R, Ma J, Li X G. Corrosion behavior of 7A04 aluminum alloy deposited with sodium chloride in simulated environment[J]. Chin. J. Nonferrous Met., 2009, 19(5): 974-980

    (周和荣, 马坚, 李晓刚.表面沉积氯化钠的7A04铝合金在模拟环境中的腐蚀行为. 中国有色金属学报,2009, 19(5): 974-980)

[4] Svensson J E, Johansson G. A laboratory study of the initial stages of the atmospheric corrosion of zinc in the presence of NaCl, influence of SO₂ and NO₂ [J]. Corros. Sci., 1993,34(5): 721-728

[5] Oesch S, Faller M. Environmental effects on materials: The effect of the air pollutants SO₂, NO₂ and O₃ on the corrosion of copper, zinc and aluminum. A short literature survey and results of laboratory exposures [J]. Corros. Sci., 1997, 39(9):1505-1524

[6] Han W, Wang Z Y, Yu G C, et al. Corrosion of aluminum in wet/dry environment containing SO₂ [J]. Chin. J.Nonferrous Met.. 2003, 13(2): 631-634

    (韩薇,王振尧,于国才等.铝在含SO₂湿润/干燥环境中的腐蚀规律. 中国有色金属学报, 2003,13(3):631-634)

[7] Zhou H R, Li X G, Dong C F. The corrosion behaviors of aluminum alloys in simulated SO₂ pollute atmosphere [J]. J. Aeron. Mater., 2008, 28(2): 39-45

    (周和荣, 李晓刚, 董超芳等.铝合金在模拟SO₂污染大气环境中的腐蚀行为研究[J]. 航空材料学报.2008, 28(2): 39-45)

[8] Lin C, Li X G. Atmospheric corrosion initial stages of magnesium alloy in the presence of NaCI and SO₂ [J]. J. Univ.Sci. Technol. Beijing, 2004, 16(5): 524-528

    (林翠, 李晓刚.NaCl沉积和SO₂污染对镁合金初期大气腐蚀行为的影响[J].北京科技大学学报, 2004, 16(5): 524-528)

[9] Graedel T E. Corrosion mechanisms for aluminum exposed to the heat atmosphere [J]. J.Electrochem. Soc., 1989, 136(4):204c-212c

[10] Zhou H R, Li X G, Ma J. Dependence of the corrosion behavior of aluminum alloy 7075 on the thin electrolyte layers [J].Mater. Sci. Eng., 2009, 162 B: 1-8

[11] Zhou H R, Li X G, Dong C F. Corrosion behaviors of aluminium alloys after cyclic wet-dry immersion test in 0.02 mol/L NaHSO₃ solution [J]. J. Chin. Soc. Corros. Prot., 2008, 28(6):345-350

     (周和荣, 李晓刚, 马坚等.铝合金在NaHSO₃溶液中干湿周浸腐蚀性能及其行为[J].中国腐蚀与防护学报, 2008: 28(6): 345-350)

[12] Zhou H R, Ma J, Lu Q K. Corrosion study of aluminum alloys in Jiangjin environment [J]. Equip. Environ. Eng., 2009,6(3): 10-14

     (周和荣, 马坚, 陆启凯等.铝合金在江津自然大气环境中的腐蚀行为研究. 装备环境工程, 2009, 6(3):10-14)

[13] LI J F, Zheng Z Q, Ren W D. Function mechanism of secondary phase on localized corrosion of Al alloy[J]. Mater. Rev.,2005, 19(2): 81-83

     (李劲风, 郑子樵, 任文达.第二相在铝合金局部腐蚀中的作用机制[J]. 材料导报, 2005, 19(2): 81-83)

[14] Buchheit R G, Grant R P, Hlavaa P F, et al. Local dissolution phenomena associated with S phase(Al₂CuMg) particles in aluminium alloy 2024-T3 [J]. J Electrochem. Soc., 1997,144(8): 2621-2628

[15] Buchheit R G, Martinez M A, Montes L P. Evidence for Cu ion formation by dissolution and dealloying the Al₂CuMg intermetallic compound in rotating ring-dish collection experiments [J]. J Electrochem.Soc., 2000, 147: 119-128

[16] Liao C M, Olive J M, Gao M, et al. In-situ monitoring of pitting corrosion in aluminium alloy 2024[J]. Corrosion, 1998,54: 451-458

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