Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Recrystallization behaviour of W- and WVM-foils
Year:2014
Research Areas
  • Engineering
Information
Abstract
This study evaluate the evolution of the recrystallization of technically pure tungsten foil (W) and potassium doped tungsten foil (WVM) on annealed tungsten foils in the temperature range from 800 to 2400 ºC. We performed three-point bending (TPB) tests at room temperature and measured the Vickers microhardness on the samples treated at the different temperatures to check the influence of the annealing temperature on both materials. Besides a study of the evolution of the microstructure accomplish with scanning electron microscopy (SEM) in combination with electron backscatter diffraction detector (EBSD) analysis to determine grain size and texture at the different heat treatment temperatures for both materials. The results show that the recrystallization temperature is improved from 1100 ºC (pure W foil) to about 1400 ºC (WVM foil) combined with an increase of room-temperature ductility. These results are of highest technical importance with respect to W laminate pipes for a helium-cooled divertor.
International
Si
Congress
The Nuclear Materials Conference: NuMat 2014
960
Place
Clearwater Beach, Florida
Reviewers
Si
ISBN/ISSN
0000-0000
Start Date
27/10/2014
End Date
31/10/2014
From page
0
To page
0
00
Participants
  • Autor: Teresa Palacios Garcia (UPM)
  • Autor: J. Reiser (KIT)
  • Autor: D. Bölich (KIT)
  • Autor: S. Baumgärtner (KIT)
  • Autor: M. Rieth (KIT)
  • Autor: Jose Ignacio Pastor Caño (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
  • Departamento: Ciencia de Materiales
  • Centro o Instituto I+D+i: CENTRO INVEST. MATERIALES ESTRUCTURALES (CIME)
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