Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Friction Stir Processing of AA6061-T4 Cold Rolled vs. as Cast.
Year:2008
Research Areas
  • Mechanical engineering,
  • Construction materials
Information
Abstract
FSP of as cast AA6061: *makes an effective surface modification; FSP closed the shrinkage porosity and homogenized the as-cast microstructures by breaking up and evenly dispersing initial phases. * the material plastic deformation, flow and mechanical mixing exhibit distinctly asymmetric characteristics at advancing, retreating side zones. * the hardness increasing of as-cast AA 6061 alloy by FSP depends on the process parameters, tool rotating and advancing speed, influencing the degree of grains refinement and level of uniformity in distribution of precipitation hardening phase, Mg2Si. FSP of AA6061- T4 *The material plastic deformation, flow and mechanical mixing exhibit distinctly asymmetric characteristics at advancing, and retreating side zones *The hardness loss of AA6061-T4 alloy depends on the process parameters, tool rotating and advancing speed; the width of this soft zone depends on peak temperature and thermal cycle duration. The material softening is due to dissolution or coarsening of Mg2Si phase precipitate during FSP. *The resulted wide heat affected zone and the lower material cooling rate produced the relatively low magnitude of compressive residual stresses in the processed zone. The compressive stresses can be beneficial for reducing the crack propagation speed.
International
Si
Congress
8TH INTERNATIONAL CONFERENCE ON TRENDS IN WELDING RESEARCH
960
Place
PINE MOUNTAIN, GEORGIA (EE.UU.)
Reviewers
Si
ISBN/ISSN
0000000000
Start Date
01/06/2008
End Date
06/06/2008
From page
1
To page
1
TRANSPARENCIAS
Participants
  • Autor: Jaime Planas Rossello (UPM)
  • Autor: Danut Iordachescu . (UPM)
  • Autor: Mihaela Iordachescu (UPM)
  • Autor: Jesus Ruiz Hervias (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería y Aplicaciones del Láser
  • Departamento: Ciencia de los Materiales
  • Centro o Instituto I+D+i: Centro Laser
  • Departamento: Física Aplicada a la Ingeniería Industrial
  • Centro o Instituto I+D+i: Centro de investigación de materiales estructurale - CIME
  • Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
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