Journal Article

FZJ-2015-05311

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Theoretical investigation of crack formation in tungsten after heat loads

Arakcheev, A. S. ; Huber, A. (Corresponding author)FZJ* ; Wirtz, M.FZJ* ; Sergienko, G.FZJ* ; Steudel, I.FZJ* ; Burdakov, A. V. ; Coenen, J. W.FZJ* ; Kreter, A.FZJ* ; Linke, J.FZJ* ; Mertens, P.FZJ* ; Shoshin, A. A. ; Unterberg, B.FZJ* ; Vasilyev, A. A.

2015
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jnucmat.2014.10.090

Abstract: Transient events such as ELMs in large plasma devices lead to significant heat load on plasma-facing components (PFCs). ELMs cause mechanical damage of PFCs (e.g. cracks). The cracks appear due to stresses caused by thermal extension. Analytical calculations of the stresses are carried out for tungsten. The model only takes into account the basic features of solid body mechanics without material modifications (e.g. fatigue or recrystallization). The numerical results of the model demonstrate good agreement with experimental data obtained at the JUDITH-1, PSI-2 and GOL-3 facilities.

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Contributing Institute(s):

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

Research Program(s):

1. 113 - Methods and Concepts for Material Development (POF3-113) (POF3-113)
2. HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) (HITEC-20170406)

Appears in the scientific report 2015

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Database coverage:
Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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