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Article Dans Une Revue Journal of Nuclear Materials Année : 2011

of a W/steel functionally graded material for plasma facing components of DEMO.

Résumé

The design of a graded transition between tungsten and steel for plasma facing components of a nuclear fusion reactor is proposed and the interest of such a transition is demonstrated by FEM calculations of the thermo-mechanical behaviour in the operating conditions of the DEMO reactor. The transition consists in stacked layers of W-WC and WC-Fe between W and Eurofer steel. The maximum surface temperature of the structural component could be maintained below 1300 degrees C for a very simple multilayer geometry, from FEM calculations. The maximum strains and equivalent elastic stresses could be reduced by a factor of about 3 as compared to a direct W/steel joint. Considerations about processing techniques of such a component are discussed, based on the literature background and a few preliminary tests. (C) 2011 Elsevier B.V. All rights reserved

Domaines

Matériaux

Dates et versions

hal-00664181 , version 1 (29-01-2012)

Identifiants

Citer

J.M. Missiaen, J.J. Raharijaona, A. Antoni, C. Pascal, M. Richou, et al.. of a W/steel functionally graded material for plasma facing components of DEMO.. Journal of Nuclear Materials, 2011, 416 (3), pp.262-269. ⟨10.1016/j.jnucmat.2011.05.054⟩. ⟨hal-00664181⟩
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