Formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungi
In this work, biocorrosion of D16T and AMg6 aluminum alloys under the influence of microscopic fungi was studied. It has been shown that micromycetes produce reactive oxygen species – superoxide anion-radical, hydrogen peroxide, which initiate biocorrosion of metals. The composition products of bioc...
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| Format: | Article |
| Language: | Russian |
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Tver State University
2023-12-01
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| Series: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
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| Online Access: | https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-888/?lang=en |
| _version_ | 1797405788174548992 |
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| author | D.V. Belov S.N. Belyaev P.A. Yunin A.A. Nazarov |
| author_facet | D.V. Belov S.N. Belyaev P.A. Yunin A.A. Nazarov |
| author_sort | D.V. Belov |
| collection | DOAJ |
| description | In this work, biocorrosion of D16T and AMg6 aluminum alloys under the influence of microscopic fungi was studied. It has been shown that micromycetes produce reactive oxygen species – superoxide anion-radical, hydrogen peroxide, which initiate biocorrosion of metals. The composition products of biocorrosion of D16T and AMg6 after exposure of the alloys on the lawn of a consortium of micromycetes was determined by energy-dispersive X-ray spectroscopy. An X-ray phase study of alloy biocorrosion products was carried out. Scanning electron microscopy and X-ray diffraction analysis show the formation of nanosized and submicron copper clusters. A physicochemical mechanism of biocorrosion of aluminum alloys by microscopic fungi is proposed. An assumption is made about the mechanism of operation of the «zerovalent metal – hydrogen peroxide» systems, which can trigger a cascade of reactions leading to the destructive oxidation of metals. The paper attempts to explain the role of microfungal community biofilms as the main factor in the mycological corrosion of metals. |
| first_indexed | 2024-03-09T03:15:14Z |
| format | Article |
| id | doaj.art-b008fdee67e540d5b252e369ce526143 |
| institution | Directory Open Access Journal |
| issn | 2226-4442 2658-4360 |
| language | Russian |
| last_indexed | 2024-03-09T03:15:14Z |
| publishDate | 2023-12-01 |
| publisher | Tver State University |
| record_format | Article |
| series | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| spelling | doaj.art-b008fdee67e540d5b252e369ce5261432023-12-03T16:05:55ZrusTver State UniversityФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов2226-44422658-43602023-12-011588891210.26456/pcascnn/2023.15.888Formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungiD.V. Belov0S.N. Belyaev1P.A. Yunin2A.A. Nazarov3Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the RAS, Nizhny Novgorod, RussiaFederal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the RAS, Nizhny Novgorod, RussiaThe Institute for Physics of Microstructures – branch of the IAP RAS, Afonino, RussiaThe Institute for Physics of Microstructures – branch of the IAP RAS, Afonino, RussiaIn this work, biocorrosion of D16T and AMg6 aluminum alloys under the influence of microscopic fungi was studied. It has been shown that micromycetes produce reactive oxygen species – superoxide anion-radical, hydrogen peroxide, which initiate biocorrosion of metals. The composition products of biocorrosion of D16T and AMg6 after exposure of the alloys on the lawn of a consortium of micromycetes was determined by energy-dispersive X-ray spectroscopy. An X-ray phase study of alloy biocorrosion products was carried out. Scanning electron microscopy and X-ray diffraction analysis show the formation of nanosized and submicron copper clusters. A physicochemical mechanism of biocorrosion of aluminum alloys by microscopic fungi is proposed. An assumption is made about the mechanism of operation of the «zerovalent metal – hydrogen peroxide» systems, which can trigger a cascade of reactions leading to the destructive oxidation of metals. The paper attempts to explain the role of microfungal community biofilms as the main factor in the mycological corrosion of metals.https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-888/?lang=enbiocorrosionmicrobiological corrosionaluminum alloys d16tamg6zerovalent aluminumzerovalent coppermicroscopic fungireactive oxygen speciessuperoxide anion radicalhydrogen peroxidecopper clusters |
| spellingShingle | D.V. Belov S.N. Belyaev P.A. Yunin A.A. Nazarov Formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungi Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов biocorrosion microbiological corrosion aluminum alloys d16t amg6 zerovalent aluminum zerovalent copper microscopic fungi reactive oxygen species superoxide anion radical hydrogen peroxide copper clusters |
| title | Formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungi |
| title_full | Formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungi |
| title_fullStr | Formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungi |
| title_full_unstemmed | Formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungi |
| title_short | Formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungi |
| title_sort | formation of copper clusters in the process of biocorrosion of aluminum alloys by microscopic fungi |
| topic | biocorrosion microbiological corrosion aluminum alloys d16t amg6 zerovalent aluminum zerovalent copper microscopic fungi reactive oxygen species superoxide anion radical hydrogen peroxide copper clusters |
| url | https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-888/?lang=en |
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