The influence of shearable and nonshearable precipitates on the Portevin-Le Chatelier behavior in precipitation hardening AlMgScZr alloys - Archive ouverte HAL
Article Dans Une Revue International Journal of Plasticity Année : 2021

The influence of shearable and nonshearable precipitates on the Portevin-Le Chatelier behavior in precipitation hardening AlMgScZr alloys

Résumé

and inverse behavior (the critical strain decreases with the increase of strain rate) regimes due to the different dislocation-precipitate interactions. Besides, the transition from shearable to nonshearable precipitates increases the onset strain at normal behavior while decreases the onset strain at inverse behavior depending on the different roles of precipitates in the solute-dislocation interaction. Finally, we reveal the nature of influence of different dislocation-precipitate interactions on PLC behavior considering different strengthening mechanisms based on quantitative characterization on precipitates and dislocation density.
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Dates et versions

hal-03370763 , version 1 (08-10-2021)

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Han Chen, Zhe Chen, G Ji, Shengyi Zhong, Haowei Wang, et al.. The influence of shearable and nonshearable precipitates on the Portevin-Le Chatelier behavior in precipitation hardening AlMgScZr alloys. International Journal of Plasticity, 2021, 147, pp.103120. ⟨10.1016/j.ijplas.2021.103120⟩. ⟨hal-03370763⟩
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