微生物抑制5754铝合金的海水腐蚀行为
收稿日期: 2020-04-22
修回日期: 2020-06-25
网络出版日期: 2020-07-14
基金资助
国家自然科学基金项目(51609133)
Corrosion Inhibition Effect of Microorganism on 5754 Al Alloy in Seawater
Received date: 2020-04-22
Revised date: 2020-06-25
Online published: 2020-07-14
Supported by
National Natural Science Foundation of China(51609133)
采用失重法分析5754铝合金在含海洋常见微生物枯草芽孢杆菌(B.subtilis)的海水中的腐蚀行为，利用SEM和白光干涉仪分别观察了表面腐蚀产物形貌及腐蚀轮廓，并用EDS和XRD分析了表面腐蚀产物成分，最后利用EIS研究该铝合金的腐蚀机理。结果表明，浸泡在含有微生物B.subtilis的海水环境中，铝合金腐蚀速率为12.5 mg/(dm2·d)，仅为浸泡在不含有微生物海水环境中铝合金腐蚀速率的1/6。浸泡在含有B.subtilis的海水环境中，铝合金表面逐渐形成一层以CaMg(CO3)2为主要成分的矿化物质膜，微生物B.subtilis的存在促进了生物矿化膜的形成，阻碍了海水对铝合金的侵蚀，从而抑制了铝合金在海水环境中的点蚀。
申媛媛 , 董耀华 , 董丽华 , 尹衍升 . 微生物抑制5754铝合金的海水腐蚀行为[J]. 金属学报, 2020 , 56(12) : 1681 -1689 . DOI: 10.11900/0412.1961.2020.00129
Currently, with the gradual depletion of onshore resources, more efforts are being devoted to both scientific and resource exploitation of the ocean and the deep sea. Compared with the onshore environment, marine habitats are complex and characterized by high hydrostatic pressure, high salinity, and high marine population. The ocean is a unique aquatic environment, and it has a large population of microorganisms. There is a need to exploit the ocean for new energy sources. The significant challenges of exploiting oil, gas, and minerals have forced the people to innovate and develop advanced exploration tools. Al alloys are attractive for use in marine environments due to their low densities, high strengths, good plasticity, excellent electrical and thermal conductivities, and excellent corrosion resistance. The high chloride concentrations and microorganisms in the ocean have a significant effect on the corrosion resistance of many metallic materials. In this work, the corrosion behavior of 5754 Al alloy in seawater containing B.subtilis was investigated. The corrosion rate was analyzed by the weight loss method. The morphologies of the corrosion products and the corrosion profiles were observed by SEM and white light interferometer, respectively. The corrosion products were analyzed by energy dispersive spectroscopy and XRD. Finally, the corrosion mechanism of the Al alloy was studied using electrochemical impedance spectroscopy. The results show that the corrosion rate of the Al alloy in the seawater with B.subtilis was 12.5 mg/(dm2·d), which was only 1/6 times that in the seawater without the bacteria. A protective film comprising of CaMg(CO3)2 was gradually formed on the surface of the alloy in the presence of the bacteria. The bacteria promoted the formation of the CaMg(CO3)2 film, which protected the alloy from the seawater, and consequently, inhibited the pitting corrosion of the Al alloy in the marine environment.
| [1] | Ezuber H, El-Houd A, El-Shawesh F. A study on the corrosion behavior of aluminum alloys in seawater [J]. Mater. Des., 2008, 29: 801 |
| [2] | Guan F, Zhai X F, Duan J Z, et al. Influence of sulfate-reducing bacteria on the corrosion behavior of 5052 aluminum alloy [J]. Surf. Coat. Technol., 2017, 316: 171 |
| [3] | Reboul M C, Baroux B. Metallurgical aspects of corrosion resistance of aluminium alloys [J]. Mater. Corros., 2011, 62: 215 |
| [4] | Villanueva M E, Salinas A, Copello G J, et al. Point of zero charge as a factor to control biofilm formation of Pseudomonas aeruginosa in sol-gel derivatized aluminum alloy plates [J]. Surf. Coat. Technol., 2014, 254: 145 |
| [5] | Liang M X, Melchers R, Chaves I. Corrosion and pitting of 6060 series aluminium after 2 years exposure in seawater splash, tidal and immersion zones [J]. Corros. Sci., 2018, 140: 286 |
| [6] | Donatus U, Thompson G E, Omotoyinbo J A, et al. Corrosion pathways in aluminium alloys [J]. Trans. Nonferrous Met. Soc., 2017, 27: 55 |
| [7] | Batmanghelich F, Li L, Seo Y. Influence of multispecies biofilms of Pseudomonas aeruginosa and Desulfovibrio vulgaris on the corrosion of cast iron [J]. Corros. Sci., 2017, 121: 94 |
| [8] | Zhou E Z, Li H B, Yang C T, et al. Accelerated corrosion of 2304 duplex stainless steel by marine Pseudomonas aeruginosa biofilm [J]. Int. Biodeter. Biodegr., 2018, 127: 1 |
| [9] | Little B J, Lee J S, Ray R I. The influence of marine biofilms on corrosion: A concise review [J]. Electrochim. Acta, 2008, 54: 2 |
| [10] | Wang H, Ju L K, Castaneda H, et al. Corrosion of carbon steel C1010 in the presence of iron oxidizing bacteria Acidithiobacillus ferrooxidans [J]. Corros. Sci., 2014, 89: 250 |
| [11] | Dou W W, Jia R, Jin P, et al. Investigation of the mechanism and characteristics of copper corrosion by sulfate reducing bacteria [J]. Corros. Sci., 2018, 144: 237 |
| [12] | Jia R, Yang D Q, Xu J, et al. Microbiologically influenced corrosion of C1018 carbon steel by nitrate reducing Pseudomonas aeruginosa biofilm under organic carbon starvation [J]. Corros. Sci., 2017, 127: 1 |
| [13] | Homborg A M, Leon M C F, Tinga T, et al. Detection of microbiologically influenced corrosion by electrochemical noise transients [J]. Electrochim. Acta, 2014, 136: 223 |
| [14] | Giacobone A F F, Rodriguez S A, Burkart A L, et al. Microbiological induced corrosion of AA 6061 nuclear alloy in highly diluted media by Bacillus cereus RE 10 [J]. Int. Biodeter. Biodegr., 2011, 65: 1161 |
| [15] | Moradi M, Song Z L, Yang L J, et al. Effect of marine Pseudoalteromonas sp. on the microstructure and corrosion behaviour of 2205 duplex stainless steel [J]. Corros. Sci., 2014, 84: 103 |
| [16] | Mansfeld F, Hsu H, ?rnek D, et al. Corrosion control using regenerative biofilms on aluminum 2024 and brass in different media [J]. J. Electrochem. Soc., 2002, 149: B130 |
| [17] | Jayaraman A, Ornek D, Duarte D A, et al. Axenic aerobic biofilms inhibit corrosion of copper and aluminum [J]. Appl. Microbiol. Biotechnol., 1999, 52: 787 |
| [18] | Jia R, Yang D Q, Xu D K, et al. Electron transfer mediators accelerated the microbiologically influence corrosion against carbon steel by nitrate reducing Pseudomonas aeruginosa biofilm [J]. Bioelectrochemistry, 2017, 118: 38 |
| [19] | Weiner S, Dove P M. An overview of biomineralization processes and the problem of the vital effect [J]. Rev. Mineral. Geochem., 2003, 54: 1 |
| [20] | Dejong J T, Mortensen B M, Martinez B C, et al. Bio-mediated soil improvement [J]. Ecol. Eng., 2010, 36: 197 |
| [21] | Uad I, Gonzalez-Lopez J, Silva-Castro A G, et al. Precipitation of carbonates crystals by bacteria isolated from a submerged ?xed-film bioreactor used for the treatment of urban wastewater [J]. Int. J. Environ. Res., 2014, 8: 435 |
| [22] | Liu H W, Gu T Y, Zhang G A, et al. The effect of magneticfield on biomineralization and corrosion behavior of carbon steel induced by iron-oxidizing bacteria [J]. Corros. Sci., 2016, 102: 93 |
| [23] | Konhauser K O. Diversity of bacterial iron mineralization [J]. Earth-Sci. Rev., 1998, 43: 91 |
| [24] | Abraham W R, Nogales B, Golyshin P N, et al. Polychlorinated biphenyl-degrading microbial communities in soils and sediments [J]. Curr. Opin. Microbiol., 2002, 5: 246 |
| [25] | Liu T, Guo Z W, Zeng Z S, et al. Marine bacteria provide lasting anticorrosion activity for steel via biofilm-induced mineralization [J]. ACS Appl. Mater. Interfaces, 2018, 10: 40317 |
| [26] | Lewis A C, Heard P J. The effects of calcium phosphate deposition upon corrosion of CoCr alloys and the potential for implant failure [J]. J. Biomed. Mater. Res., 2005, 75A: 365 |
| [27] | Abdel-Gawad S A, Osman W M, Fekry A M. Characterization and corrosion behavior of anodized aluminum alloys for military industries applications in artificial seawater [J]. Surf. Interfaces, 2019, 14: 314 |
| [28] | Acosta G, Veleva L, López J L, et al. Contrasting initial events of localized corrosion on surfaces of 2219-T42 and 6061-T6 aluminum alloys exposed in Caribbean seawater [J]. Trans. Nonferrous Met. Soc. China, 2019, 29: 34 |
/
| 〈 |
|
〉 |
