Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Aluminium Friction Stir Processing of AA 6061 Alloys
Year:2007
Research Areas
  • Mechanical engineering
Information
Abstract
Generally, AA6061 is used in a wide range of applications, including cryogenic applications requiring high toughness. Friction Stir Processing technique was investigated for inducing directed and localized properties in cast AA6061. It was envisaged to set up reproducible practical operational windows for modifying of thick cast pieces, demonstrating substantially improved microstructural, mechanical and formability properties. Firstly, the paper introduces FSP fundamental parameters as advancing and rotating tool speed, approaching their influence on the processed material and surface roughness of AA6061. Single and overlapped friction stir processed layers were considered for the microstructural, hardness and surface roughness analysis. Different microstructural zones have been identified: the nugget region experiencing intense plastic deformation and high temperature exposure being characterized by fine and equiaxed recrystallized grains, the thermo-mechanically affected region experiencing medium temperature and deformation having deformed and un-recrystallized grains, and the heat affected zone experiencing only temperature, characterized by precipitate coarsening. Hardness distribution on single and overlapped layers was investigated. Transient and quasy-stationary phases of FSP were revealed by roughness mapping.
International
Si
JCR
No
Title
Welding in the World
ISBN
0043-2288
Impact factor JCR
0
Impact info
Volume
Journal number
0
From page
To page
Month
SIN MES
Ranking
Participants
  • Autor: PEDRO VILAÇA (Instituto Superior Tecnico, Lisbon, Portugal)
  • Autor: Juan Antonio Porro Gonzalez (UPM)
  • Autor: MIHAELA IORDACHESCU (*Dunarea de Jos University of Galati, Romania)
  • Autor: Danut Iordachescu . (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería y Aplicaciones del Láser
  • Departamento: Física Aplicada a la Ingeniería Industrial
  • Centro o Instituto I+D+i: Centro Laser
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)