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3 位于3种θ′/δ′界面处,不同原子对化学键的键长 (nm)

Table 3 Summaries of the bond lengths of different atomic interactions in three types of θ′/δ′ interfaces

Structure Li1—Al2 Li1—Al3 Al1—Al2 Al1—Al3 In-phase #2 0.288 0.288 0.288 0.288 Anti-phase a / 2[010] 0.386 0.271 0.262 0.397 Anti-phase a / 2[110] 0.280 0.280 0.279 0.279