IFMIF, the International Fusion Materials Irradiation Facility is conceived to generate fusion relevant neutrons with a broad peak at 14 MeV through Li(d,xn) nuclear reactions. IFMIF will enable accelerated neutron irradiation of structural materials at above 20 dpa/fpy (full power year) in 500 cm3 for the high flux test module. IFMIF is presently in its Engineering Validation and Engineering...
The most problematic materials-related challenge for DEMO and future commercial fusion power plants concerns the mitigation of neutron damage, that is, embrittlement by irradiation-induced defects and helium as well as hydrogen transmutation. It has the highest impact on the design and licensing of blanket and divertor structures. As of today, the assumed design limits are highly speculative,...
A significant part in the EUROfusion materials research programme is to tackle a fusion specific challenge: Neutrons produced by the fusion reaction damage materials by displacing atoms (displacement damage) and they transmute certain elements as well (transmutation damage). That is, on the one hand, materials are damaged by atom displacement, which mainly leads to hardening, embrittlement,...
This paper aims to provide the first release of Japanese materials property handbook (MPH) for structural design of DEMO, specifically addressing on F82H as Japanese reduced-activation ferritic/martensitic (RAFM) steel. In parallel, the issues and challenges to facilitate the structural design criteria (SDC) to meet requirements of DEMO specific environments, e.g., multi-axial loading,...
A fusion power plant will produce heat, particle, and neutron fluxes that significantly exceed those in present confinement facilities. These loads will alter the plasma facing materials and components significantly impacting reactor lifetime, performance and safety. Most of these challenges can be addressed with cost effective linear plasma device experiments. The existing devices PISCES and...
Plasma surface interactions between the edge of a magnetically confined plasma and the surrounding wall components lead to detrimental effects for both the wall materials and the plasma, including surface erosion, emission of impurities that radiate and dilute the plasma, loss of fuel through retention in the walls leading to materials property degradation, etc. Understanding and controlling...
