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'-Al₃Li/θ'-Al₂Cu/δ'-Al₃Li 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.

中文翻译：

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Al-Cu-Li 中的异相界面变形：Al-Cu-Li 合金中的异相界面主导变形和机械性能（Adv. Theory Simul. 6/2021）

在文章编号 2100059 中，Junsheng Wang 及其同事报告说，Al-Li 合金中的异相界面显示广义堆垛层错能 (GSFE) 从 δ'-Al ₃ Li/θ'-Al ₂ Cu/δ的中间降低'-Al ₃ Li 复合结构到边缘，导致在相对较低的剪切应力下沿 [001] 方向的面间滑移。超细δ'/θ'/δ'复合沉淀物中的这种界面介导的塑性有望解决未来铝锂合金设计中强度-延展性冲突的根源。