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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 fibre-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 fibres were used for the reinforcement. The results demonstrate that yield stress, ultimate tensile strength, work hardening rate and creep resistance could be extensively improved by the fibre reinforcement up to fibre content of 40 vol.%. The influence of the residual stresses on the plastic behaviour of the composites is also discussed.

Additional information

Authors: YOU J H, Max-Planck Institut fur Plasmaphysik, Euratom Association, Garching (DE);BOLT H, Max-Planck Institut fur Plasmaphysik, Euratom Association, Garching (DE)
Bibliographic Reference: An article published in: Journal of Nuclear Materials, Volume 305, Issue 1, September 2002, Pages 14-20
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Record Number: 200215550 / Last updated on: 2002-11-25
Original language: en
Available languages: en