Greifswald 2024 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 12: Poster II
P 12.16: Poster
Dienstag, 27. Februar 2024, 16:30–18:30, ELP 6: Foyer
Build quality benchmark of tungsten powder bed fusion additive manufacturing processes — •Robert Lürbke1,2, Alexander von Müller2, Georg Schlick3, and Rudolf Neu1,2 — 1Technical University Munich, 85748 Garching, Germany — 2Max Planck Institute for Plasma Physics, 85748 Garching — 3Fraunhofer Institue for Casting, Composite and Processing Technology, 86159 Augsburg, Germany
Plasma-facing components (PFCs) in future magnetic confinement fusion reactors must sustain high heat fluxes and intense neutron irradiation. These extreme conditions might create the need for specially engineered materials. Tungsten (W) is currently considered the preferred plasma-facing material in fusion devices. To create a wall component, it has to be joined to an actively cooled heat sink. Additive manufacturing (AM) of W is a potentially helpful tool to create tailored structures to reinforce a high-conductivity copper matrix, forming a composite heat sink with optimized thermomechanical behavior. AM of W is a rapidly developing field, and various processes have been elaborated recently by research institutions and industry. The contribution will give an overview of AM powder bed fusion processes for W and highlight the development of a benchmark part based on which the processes shall be evaluated in view of their capabilities related to PFC production.
Keywords: tungsten; additive manufacturing; powder bed fusion; plasma-facing components