Performance limits for fusion first-wall structural materials

First-principles models for phase stability and radiation defects in structural materials for future fusion

Generic materials-related problems foreseen in connection with the operation of a fusion power plant present a major challenge for the development of magnetically confined fusion as a commercial power generation option. In this review, we focus on the predictive capabilities of first-principles-based atomistic models for radiation defects and phase stability of bodycentred cubic Fe-Cr-based fer...

A Theoretical Study of Wall Ironing for Anisotropic Workharden Materials

UWFDM-1362 Mobile Tiles for Inertial Fusion First Wall/Blanket

A conceptually simple first wall (FW) and blanket design for an inertial fusion system based on utilizing mobile FW tiles is presented. Using these tiles that are periodically removed, annealed, and reinstalled, tritium retention and surface erosion concerns for inertial fusion FW could be mitigated. A conceptual configuration has been developed with consideration for laser beam port accommodat...

Operating temperature windows for fusion reactor structural materials

A critical analysis is presented of the operating temperature windows for nine candidate fusion reactor structural materials: four reduced-activation structural materials (oxide-dispersion-strengthened and ferritic/martensitic steels containing 8–12%Cr, V–4Cr–4Ti, and SiC/SiC composites), copper-base alloys (CuNiBe), tantalum-base alloys (e.g. Ta–8W–2Hf), niobium alloys (Nb–1Zr), and molybdenum...

A Theoretical Study of Wall Ironing for Anisotropic Workharden Materials