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Irradiation-based design of mechanically resistant microstructures tuned viamultiscale phase-field modeling

Abstract : We present a multi-scale phase field modeling of stationary microstructures produced under 1MeV krypton ion irradiation in a phase separating concentrated solid solution of silver and copper.We show that the mixture reaches ultimately a stationary micro-structural state made of phasedomains with composition and size distribution mapped to the values of the incident ux of particlesand of the temperature, variables that help designing a non equilibrium phase-diagram for theirradiated alloy. The modeling predicts the formation of diverse microstructures likely connected tospinodal hardening, thus opening the perspective of the on-purpose tuning of mechanically resistantmicrostructures and the preparation of metastable alloys with mechanical properties improved bycomparison to counterparts obtained via classical thermo-mechanical treatments.
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Gilles Demange, S. Depinoy, L. Luneville, D. Simeone, V. Pontikis. Irradiation-based design of mechanically resistant microstructures tuned viamultiscale phase-field modeling. Scientific Reports, Nature Publishing Group, 2018, 8 (1), pp.10237. ⟨10.1038/s41598-018-28685-3⟩. ⟨cea-02339614⟩

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