Latent hardening effect under self- and coplanar dislocation interactions in Mg single crystals

Latent hardening experiments were carried out on Mg single crystals under basal self- and coplanar dislocation interactions. For self-interactions the latent hardening ratio (LHR) is independent on the amount of primary deformation in the basal slip system. For coplanar interactions LHR increases li...

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Bibliographic Details
Published in:Scripta materialia 2015-09, Vol.106, p.17-20
Main Authors: Hiura, F., Niewczas, M.
Format: Article
Language:English
Subjects:
Basal slip
Coplanar interactions
Deformation
Dislocation density
Dislocations
Easy glide
Hardening
Latent hardening
Magnesium single crystals
Single crystals
Slip
Strain
Stresses
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Summary:Latent hardening experiments were carried out on Mg single crystals under basal self- and coplanar dislocation interactions. For self-interactions the latent hardening ratio (LHR) is independent on the amount of primary deformation in the basal slip system. For coplanar interactions LHR increases linearly with primary strain and quadratically with primary stress, suggesting that during the stage A in Mg the coplanar slip systems harden proportionally to the dislocation density accumulated in the other coplanar slip system.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2015.04.008