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Memorias de investigación
Artículos en revistas:
Analysis of residual stress and corrosion resistance of laser shock-processed 6012 and 6082 aluminium alloys
Año:2009
Áreas de investigación
  • Ingenieria mecanica,
  • Materiales de construccion
Datos
Descripción
The paper provides a thorough analysis of a surface layer prior to and after Laser Shock Processing under different parameter conditions. Optimum conditions were determined using a factorial design aided with an analysis of variance (ANOVA). As the first experimental factor, pulse density with 900 and 2500 pulse/cm2 was chosen. The second factor was the type of material, i.e. aluminium alloys ENAW 6012 and ENAW 6082. Evaluation of different conditions of specimen treatment was made using three response variables, i.e. surface roughness, magnitude of residual stresses, and corrosion resistance given by pitting potential (Epitt). A thorough analysis of the modified surface layer was made with measurement of microhardness, and with images obtained in optical and electronic microscopy (SEM) and energy dispersion spectroscopy (EDS) to determine corrosion products around the pits formed after corrosion testing. The experiments confirmed characteristic influences of individual LSP parameters on properties of the treated material surfaces. ENAW 6012 aluminium alloy showed better corrosion resistance than ENAW 6082 alloy with lower pitting attack at its surface. Corrosion tests showed that a higher pulse density produces shifting of the pitting potential to more positive values, which ensures higher corrosion resistance from the viewpoint of preserving a passive protecting film on the surface layer.
Internacional
Si
JCR del ISI
No
Título de la revista
Proceedings of SPIE. The International Society for Optical Engineering
ISSN
0277-786X
Factor de impacto JCR
0
Información de impacto
Volumen
7131
DOI
10.1117/12.816643
Número de revista
0
Desde la página
713124
Hasta la página
713124
Mes
ABRIL
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Participante: U. TRDAN (University of Ljubljana, Faculty of Mechanical Engineering Slovenia)
  • Participante: J. GRUM (University of Ljubljana, Faculty of Mechanical Engineering Slovenia)
  • Autor: Juan Antonio Porro Gonzalez (UPM)
  • 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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