2024-03-28T20:43:34Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/761812021-10-29T07:55:52Zcom_10261_66com_10261_3col_10261_319
DIGITAL.CSIC
author
López, Víctor
author
González, J. A.
author
Otero, Eduardo
author
Escudero, E.
author
Morcillo, Manuel
2013-05-16T11:28:48Z
2013-05-16T11:28:48Z
2002
Surface and Coatings Technology 153: 235- 244 (2002)
http://hdl.handle.net/10261/76181
10.1016/S0257-8972(01)01681-4
This study compares the behaviour of aluminium in the bare condition and when protected with anodic films of approximately 7, 17 and 28 μm thickness for up to 42 months of exposure in 11 atmospheres of very different agressivities, with salinity values ranging between 2.1 and 684 mg Cl- m-2 d-1. The results of a previous study based on visual inspection and traditional gravimetric techniques are complemented by the application, essentially, of electrochemical impedance spectroscopy (EIS). The specimens were characterised by EIS when recently obtained and after 12, 24 and 42 months of exposure in the different testing stations. Exposure leads to an improvement in all the quality indices of anodic films, irrespective of their thickness or the degree of environmental pollution. Anodising and sealing prevents localised corrosion - which is characteristic of aluminium in marine or industrial atmosphere - even in the most unfavourable situations, except in the case of 7 μm films, the lowest thickness tested. © 2002 Elsevier Science B.V. All rights reserved.
eng
closedAccess
Atmospheric corrosion of bare and anodised aluminium in a wide range of environmental conditions. Part II: Electrochemical responses
artículo
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URL
https://digital.csic.es/bitstream/10261/76181/1/accesoRestringido.pdf
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accesoRestringido.pdf
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https://digital.csic.es/bitstream/10261/76181/5/accesoRestringido.pdf.txt
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accesoRestringido.pdf.txt