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Heterophase Interface Deformation in Al‐Cu‐Li: Heterophase Interface Dominated Deformation and Mechanical Properties in Al‐Cu‐Li Alloys (Adv. Theory Simul. 6/2021)
Author(s) -
Wang Shuo,
Zhang Chi,
Li Xin,
Wang Junsheng
Publication year - 2021
Publication title -
advanced theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.068
H-Index - 17
ISSN - 2513-0390
DOI - 10.1002/adts.202170011
Subject(s) - materials science , alloy , ductility (earth science) , stacking fault energy , plasticity , slip (aerodynamics) , composite material , composite number , deformation (meteorology) , metallurgy , thermodynamics , creep , physics
In article number 2100059, Junsheng Wang and co‐workers report that the heterophase interfaces in Al‐Li alloys show the generalized stacking fault energy (GSFE) decreasing from the middle of δ'‐Al 3 Li/θ'‐Al 2 Cu/δ'‐Al 3 Li composite structures to the edge, leading to interplanar slip along the [001] direction at relatively low shear stress. This interface‐mediated plasticity within the ultrafine δ'/θ'/δ' composite precipitate is expected to solve the origin of strength‐ductility conflicts in future Al‐Li alloy design.