Journal Article

FZJ-2017-06004

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Material Properties and Their Influence on the Behaviour of Tungsten as Plasma Facing Material

Wirtz, M. (Corresponding author)FZJ* ; Uytdenhouwen, I.FZJ* ; Barabash, V. ; Escourbiac, F. ; Hirai, T. ; Linke, J.FZJ* ; Loewenhoff, T. (Corresponding author)FZJ* ; Panayotis, S. ; Pintsuk, G.FZJ*

2017
IAEA Vienna

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Please use a persistent id in citations: doi:10.1088/1741-4326/aa6938

Abstract: With the aim of a possible improvement of the material specification for tungsten, five different tungsten products by different companies and by different production technologies (forging and rolling) are subject to a materials characterization program. Tungsten produced by forging results in an uniaxial elongated grain shape while rolled products have a plate like grain shape which has an influence on the mechanical properties of the material. The materials were investigated with respect to the following parameters: hardness measurements, microstructural investigations, tensile tests and recrystallisation sensitivity tests at 3 different temperatures. The obtained results show that different production processes have an influence on the resulting anisotropic microstructure and the related material properties of tungsten in the as-received state. Additionally, the recrystallization sensitivity varies between the different products, what could be a result of the different production processes. Additionally, two tungsten products were exposed to thermal shocks. The obtained results show that the improved recrystallisation behaviour has no major impact on the thermal shock performance.

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Contributing Institute(s):

1. Werkstoffstruktur und -eigenschaften (IEK-2)
2. Plasmaphysik (IEK-4)

Research Program(s):

1. 174 - Plasma-Wall-Interaction (POF3-174) (POF3-174)
2. HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) (HITEC-20170406)

Appears in the scientific report 2017

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Database coverage:
Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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