计算辅助高性能增材制造铝合金开发的研究现状与展望

高建宝, 李志诚, 刘佳, 张金良, 宋波, 张利军

Current Situation and Prospect of Computationally Assisted Design in High-Performance Additive Manufactured Aluminum Alloys: A Review

GAO Jianbao, LI Zhicheng, LIU Jia, ZHANG Jinliang, SONG Bo, ZHANG Lijun

图8 有限界面耗散模型用于研究快速凝固条件下Al-Cu体系的溶质截留现象及动力学相图[102]

Fig.8 Solute trapping and kinetic phase diagram of the Al-Cu system under rapid solidification conditions using phase-field model with finite interface dissipation[102] (a) phase-field simulated steady-state concentration profiles with three different interface moving velocities (or solidification rate) V in Al-Cu system (The red dash line denotes the phase field, the bule solid lines denote the overall concentrations, while the dotted lines denote the liquid concentrations) (b) phase-field simulated solute segregation coefficient and solidification temperature as a function of interface velocity (or solidification rate) in Al-1.1%Cu (atomic fraction) alloy (c) model-predicted kinetic phase diagrams at different interface velocities (or solidification rate) due to the 1-D phase-field simulation using the time-elimination relaxation scheme of the Al-Cu system