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

Abstract : 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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https://hal-mines-paristech.archives-ouvertes.fr/hal-00509787
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Submitted on : Monday, August 16, 2010 - 2:38:09 PM
Last modification on : Tuesday, February 16, 2021 - 3:22:06 PM

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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, Elsevier, 2010, 63, pp.477-479. ⟨10.1016/j.scriptamat.2010.05.006⟩. ⟨hal-00509787⟩

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