Al-Li合金中 δ′/θ′/δ′复合沉淀相结构演化及稳定性的第一性原理探究

Processing math: 100%

Al-Li合金中 δ′/θ′/δ′复合沉淀相结构演化及稳定性的第一性原理探究

王硕, 王俊升

Structural Evolution and Stability of the δ′/θ′/δ′ Composite Precipitate in Al-Li Alloys: A First-Principles Study

WANG Shuo, WANG Junsheng

表1 3种界面结构的界面面积、界面能以及解理面各相的表面能

Table 1 Calculated interface area (S), interfacial energy (γ_interface), and relative surface energy (γ_surface) of three cleavage planes with different phase relationships

Structure	S / nm²	$γ_{s u r f a c e}^{θ'}$ / (J·m^-2)	$γ_{s u r f a c e}^{δ'}$ / (J·m^-2)	$γ_{i n t e r f a c e}$ / (J·m^-2)
In-phase #2	0.165	1.401	0.894	0.335
Anti-phase a / 2[010]	0.163	1.418	0.894	0.964
Anti-phase a / 2[110]	0.163	1.445	0.846	-0.015