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Overall mechanical properties of fiber-reinforced metal matrix composites for fusion applications

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You,  J. H.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Bolt,  H.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Citation

You, J. H., & Bolt, H. (2002). Overall mechanical properties of fiber-reinforced metal matrix composites for fusion applications. Journal of Nuclear Materials, 305(1), 14-20.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0027-40A6-7
Abstract
The high-temperature strength and creep properties are among the crucial criteria for the structural materials of plasma facing components (PFC) of fusion reactors, as they will be subjected to severe thermal stresses. The fiber-reinforced metal matrix composites are a potential heat sink material for the PFC application, since the combination of different material properties can lead to versatile performances. In this article, the overall mechanical properties of two model composites based on theoretical predictions are presented. The matrix materials considered were a precipitation hardened CuCrZr alloy and reduced activation martensitic steel 'Eurofer'. Continuous SiC fibers were used for the reinforcement, The results demonstrate that yield stress, ultimate tensile strenght, work hardening rate and creep resistance could be extensively improved by the fiber reinforcement up to fiber content of 40 vol.%. The influence of the residual stresses on the plastic behavior of the composites is also discussed. (C) 2002 Elsevier Science B.V. All rights reserved.