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Article Dans Une Revue Scripta Materialia Année : 2010

Critical grain size for dislocation storage and consequences for strain hardening of nanocrystalline materials

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Résumé

We consider strain hardening of nanostructured materials and propose a physically based interpretation of their low strain hardening capability in terms of a reduced storage rate of dislocations. The model suggested provides a modification of the Kocks–Mecking–Estrin evolution law for dislocation storage for nanostructured materials and predicts a critical grain size below which the strain hardening rate drops off.
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Dates et versions

hal-00509787 , version 1 (16-08-2010)

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Olivier Bouaziz, Y. Estrin, Yves Brechet, J.D. Embury. Critical grain size for dislocation storage and consequences for strain hardening of nanocrystalline materials. Scripta Materialia, 2010, 63, pp.477-479. ⟨10.1016/j.scriptamat.2010.05.006⟩. ⟨hal-00509787⟩
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