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The current magnetic confinement nuclear fusion power
reactor concepts going beyond ITER are based on assumptions about the availability of materials
with extreme mechanical, heat, and neutron load capacity. In Europe, the development of such
structural and armour materials together with the necessary production, machining, and
fabrication technologies is pursued within the EFDA long-term fusion materials programme. This
paper reviews the progress of work within the programme in the area of tungsten and tungsten
alloys. Results, conclusions, and future projections are summarized for each of the programme's
main subtopics, which are: (1) fabrication, (2) structural W materials, (3) W armour materials,
and (4) materials science and modelling. It gives a detailed overview of the latest results on
materials research, fabrication processes, joining options, high heat flux testing, plasticity
studies, modelling, and validation experiments. (C) 2012 Elsevier B.V. All rights reserved.