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Memorias de investigación
Ponencias en congresos:
Surface evaluation of laser shock processed aluminium alloy after pitting corrosion attack with optical 3-d metrology method
Año:2009
Áreas de investigación
  • Ingenieria mecanica,
  • Materiales de construccion
Datos
Descripción
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.
Internacional
Si
Nombre congreso
The 10th International Conference of the Slovenian Society for Non-Destructive Testing Application of Contemporary Non-Destructive Testing in Engineering
Tipo de participación
960
Lugar del congreso
Ljubljana, Slovenia
Revisores
Si
ISBN o ISSN
0000000000000
DOI
Fecha inicio congreso
01/09/2009
Fecha fin congreso
03/09/2009
Desde la página
251
Hasta la página
258
Título de las actas
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"
Esta actividad pertenece a memorias de investigación
Participantes
  • Participante: U. Trdan (University of Ljubljana, Faculty of Mechanical Engineering, Laboratory for Materials Testing)
  • Participante: J. Grum (University of Ljubljana, Faculty of Mechanical Engineering, Laboratory for Materials Testing)
  • Autor: Jose Luis Ocaña Moreno (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería y Aplicaciones del Láser
  • Centro o Instituto I+D+i: Centro Laser
  • Departamento: Física Aplicada a la Ingeniería Industrial
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