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Descripción
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| The corrosion behaviour of the AlSi1MgMn laser-shock-processed aluminium alloy was investigated in 3.5% NaCl water solution at ph7 and 23°C. Potentiodynamic polarization tests were conducted at a scanning rate of 10mV/s, starting at 2000mVSCE. Corrosion plots showed pitting corrosion attack. Surface conditions after corrosion tests at different pulse density levels were evaluated with optical microscopy, scanning electron microscopy (SEM), EDS analysis and innovative non-destructive 3D surface metrology method. The SEM analysis showed a large presence of chloride and oxide products near the pits. The non-destructive 3D metrology method proved to be an extremely perspective method to determine surface conditions in a way the traditional microscopy could not. The results of the research confirm its use in detail analysis of the pits formed at the surface as a result of electrochemical corrosion attack. The tests confirm that a greater pulse density of the surface treated guarantees a smaller number of pits per surface unit and is reflected also by the movement of the pitting potential towards bigger corrosion resistance. | |
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Internacional
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Si |
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Nombre congreso
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The 10th International Conference of the Slovenian Society for Non-Destructive Testing Application of Contemporary Non-Destructive Testing in Engineering |
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Tipo de participación
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960 |
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Lugar del congreso
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Ljubljana, Slovenia |
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Revisores
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Si |
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ISBN o ISSN
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0000000000000 |
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DOI
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Fecha inicio congreso
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01/09/2009 |
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Fecha fin congreso
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03/09/2009 |
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Desde la página
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251 |
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Hasta la página
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258 |
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Título de las actas
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Disco completo con la edición: The 10th International Conference of the Slovenian Society for Non-Destructive Testing "Application of Contemporary Non-Destructive Testing in Engineering" |