Memorias de investigación
Artículos en revistas:
The effects of tantalum addition on the microtexture and mechanical behaviour of tungsten for ITER applications
Año:2015
Áreas de investigación
  • Ingenierías
Datos
Descripción
Tungsten (W) and its alloys are very promising materials for producing plasma-facing components (PFCs) in the fusion power reactors of the near future, even as a structural part in them. However, whereas the properties of pure tungsten are suitable for a PFC, its structural applications are still limited due to its low toughness, ductile to brittle transition temperature and recrystallization behaviour. Therefore, many efforts have been made to improve its performance by alloying tungsten with other elements. Hence, in this investigation, the thermo-mechanical performance of two new tungsten-tantalum materials has been evaluated. Materials with We5wt.%Ta and We15wt.%Ta were processed by mechanical alloying (MA) and later consolidation by hot isostatic pressing (HIP), with distinct settings for each composition. Thus, it was possible to determine the relationship between the microstructure and the addition of Ta with the macroscopic mechanical properties. These were measured by means of hardness, flexural strength and fracture toughness, in the temperature range of 300e1473 K. The microstructure and the fracture surfaces features of the tested materials were analysed by Field Emission Scanning Electron Microscopy (FESEM).
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Nuclear Materials
ISSN
0022-3115
Factor de impacto JCR
2,016
Información de impacto
Datos JCR del año 2013
Volumen
2
DOI
Número de revista
467
Desde la página
949
Hasta la página
955
Mes
DICIEMBRE
Ranking
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Participantes
  • Autor: Elena Maria Tejado Garrido UPM
  • Autor: P.A. Carvalho Associação Euratom/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
  • Autor: A. Muñoz Departamento de Física, Universidad Carlos III, Leganes, Spain
  • Autor: M. Brias Associação Euratom/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
  • Autor: J.B. Correia Associação Euratom/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
  • Autor: U.V. Maldolcar Associação Euratom/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
  • Autor: Jose Ygnacio Pastor Caño UPM
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: CENTRO INVEST. MATERIALES ESTRUCTURALES (CIME)
  • Departamento: Ciencia de Materiales