Microbiological corrosion of aluminum alloys

Smirnov, V. F.; Белов, Д. В.; Соколова, Т. А.; Kuzina, O. V.; Kartashov, V. R.

doi:10.1134/s0003683808020117

Cited by 25 publications

(10 citation statements)

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“…The species A. niger was the most prevalent in that study and its occurrence was related with the production of citric acid and extracellular polymeric substances generally involved in metal corrosion Juzeliûnas et al 2007). In addition, Smirnov et al (2008) reported a variety of filamentous fungi associated with corrosion in aluminum and aluminum-based alloys, including isolates from the genera Aspergillus, Fusarium, Paecilomyces and Trichoderma. Representatives of genera Aspergillus, Fusarium and Trichoderma were also reported as fungal contaminants of corroded fuel tanks made of aluminum (Hagenauer et al 1994;Beech and Gaylarde 1999).…”

Section: Discussionmentioning

confidence: 98%

Fungal diversity associated with Brazilian energy transmission towers

et al. 2010

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The present work profiled the fungal community structure found in Brazilian energy transmission tower with signs of corrosion and/or biofilm formation using cloning (ITS-rRNA gene libraries) and culture-dependent technique. A total of 31 isolates comprising 10 filamentous fungi and 21 yeasts were recovered from enrichment cultures. As determined by polyphasic taxonomy 9 genera and 13 species were identified including Aspergillus fumigatus, Aspergillus niger, Candida albicans, Candida pseudointermedia, Candida tropicalis, Cryptococcus laurentii, Debaryomyces nepalensis, Exophiala dermatitidis, Fusarium sp., Fusarium solani, Paecilomyces lilacinus, Trichoderma citrinoviride, Trichoderma longibrachiatum, and Pichia guilliermondii. Metagenomic analyses based on 160 clone sequences revealed 30 operational taxonomic units (OTUs) comprising 20 OTUs of filamentous fungi and 10 OTUs of yeasts. The majority of OTUs were related to the genera

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Section: Discussionmentioning

confidence: 98%

Fungal diversity associated with Brazilian energy transmission towers

et al. 2010

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“…The microorganism Penicillium candidum used in this work is a saprophytic filamentous fungi, typically used in 298 dairies to make Brie and Camembert cheeses. In spite of its low pathogenicity, the corrosion potential of this fungi is comparable to Aspergillus genus [6,7,8]. Hence, in this work, biocorrosion effects induced by the Penicillium candidum filamentous fungi on the microstructure of the AISI 4340 steel are evaluated.…”

Section: Introductionmentioning

confidence: 99%

Biocorrosion of AISI 4340 Steel

Rovetta

Abdalla²,

Khouri

et al. 2012

MRS Proc.

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The objective of the present work is to evaluate the Penicillium candidum filamentous fungi biocorrosion effects on AISI 4340 steel. Small AISI 4340 steel blocks are exposed to a biocorrosion process inside glass tubes containing culture media (Sabouraud Dextrose HIMEDIA broth) inoculated with Penicillium candidum spores for 14 days, at 25ºC constant temperature. The surface microstructures are evaluated by scanning electron microscopy, atomic force microscopy, and the chemical composition by energy dispersive X-ray spectroscopy. Comparison of micrographies before and after biocorrosion shows that surface structures present morphological alterations, suggesting corrosion wear. Grain contours can no longer be visualized and oxygen content on the steel surface increases to 32% after biocorrosion. Besides, topographic parameters like root mean square roughness (Rms), arithmetic mean roughness (Ra) and mean roughness (Rz) increase 57%, 132%, and 71%, respectively, from their initial values. It is concluded that AISI 4340 steel is reasonably susceptible to corrosion.

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“…However, relatively few studies have focused on the involvement of fungi. In fact, a wide variety of fungi commonly existing in nature are capable of influencing metal corrosion (Salvarezza et al, 1983;Ayllon and Rosales, 1994;Hagenauer et al, 1994;Little et al, 1997;Videla et al, 1988;Galarde et al, 1999;Little and Ray, 2002;McNamara et al, 2005;Araya et al, 2007;Belov et al, 2008;Rosales and Iannuzzi, 2008;Smirnov et al, 2008;Qu et al, 2015;Ching et al, 2016). For example, fungus Hormoconis (Cladosporium) resinae, a main microorganism found in the aviation fuel system, could affect the corrosion of aluminum fuel tanks with the corrosive acid metabolites or the corrosion inhibitor produced by the microorganism (Salvarezza et al, 1983;Videla et al, 1988;Ayllon and Rosales, 1994).…”

Section: Introductionmentioning

confidence: 99%

“…For example, fungus Hormoconis (Cladosporium) resinae, a main microorganism found in the aviation fuel system, could affect the corrosion of aluminum fuel tanks with the corrosive acid metabolites or the corrosion inhibitor produced by the microorganism (Salvarezza et al, 1983;Videla et al, 1988;Ayllon and Rosales, 1994). Other fungal species, such as filamentous species Aspergillus niger and Penicillium frequentans, isolated from different corroded sites of aircraft, were reported to cause aggressive corrosions toward AA 7075 (Smirnov et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Corrosion of aluminum alloy 2024 caused by Aspergillus niger

Dai

Wang

et al. 2016

International Biodeterioration & Biodegradation

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Corrosion of aluminum alloy 2024 (AA 2024-T3) exposed to fungus Aspergillus niger cultured on glucose containing potato dextrose agar was studied in a high humidity and sterile atmospheric environment. The biofilm evaluation, weight loss measurement, quantitative pit analysis and corrosion product characterization were carried out. Results showed that, under this condition, the presence of A. niger accelerated corrosion process. The corrosion rate of AA 2024-T3 by A. niger was more than 4 times of that exposed to NaCl. Also, severe pitting corrosion, comparable to AA 2024-T3 exposed to NaCl, and aluminum depletion accompanied with copper enrichment were observed. Furthermore, the corrosion morphology was found to be related to the biofilm thickness. The dominant metabolite of A. niger under our experimental condition was identified to be oxalic acid, an aggressive corrodent that causes similar corrosion rate and corroded pit morphology as those observed in in this study. Therefore, oxalic acid produced by A. niger under our specific experimental condition is believe to be the main cause for the corrosion of AA 2024-T3.

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Microbiological corrosion of aluminum alloys

Cited by 25 publications

References 0 publications

Fungal diversity associated with Brazilian energy transmission towers

Fungal diversity associated with Brazilian energy transmission towers

Biocorrosion of AISI 4340 Steel

Corrosion of aluminum alloy 2024 caused by Aspergillus niger

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