(1. 中南大学 高性能复杂制造国家重点实验室，长沙 410083；
2. 中南大学 机电工程学院，长沙 410083)
摘 要: 在双辊连续铸轧过程中施加电磁-超声能场制备出1060铝合金铸轧板坯，经不同冷轧变形量的冷轧后退火，制备出系列铝板带，从晶粒大小、形态和取向等方面分析电磁-超声能场对铝板带再结晶组织与织构的影响。结果表明：电磁-超声能场可使铝合金铸轧板坯的平均晶粒尺寸减小50%，使第二相均匀弥散分布在晶内和晶界上，并能降低织构取向密度，使织构组分漫散分布；电磁-超声能场可加大铝合金铸轧板在冷轧-退火过程中的再结晶程度，并获得更加细小均匀的再结晶组织；电磁-超声能场还可降低铝合金铸轧板冷轧-退火后的再结晶织构强度，抑制晶粒的择优取向，提高铝合金铸轧板的深冲成型性能。
关键字: 1060铝合金；电磁-超声铸轧；冷轧；退火；织构
（1. State Key Laboratory of High Performance and Complex Manufacturing, Central South University, Changsha 410083, China;
2. School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China）
Abstract:1060 aluminum alloy cast-rolling slab was prepared by electromagnetic-ultrasonic cast-rolling, then series of aluminum alloy plates were prepared through cold rolling and annealing. The effects of electromagnetic-ultrasonic energy field on the recrystallization microstructure and texture of 1060 aluminum alloy plates were researched through the analysis of grain size, form and orientation. The results show that electromagnetic-ultrasonic energy field can decrease the average grain size of aluminum alloy cast-rolling slab by 50%, make the precipitated phase distribute on the intracrystalline and grain boundary in homogeneous dispersion state, and reduce texture orientation density, making texture component distribute dispersively. Electromagnetic-ultrasonic energy field can enhance the recrystallization during cold-rolling and annealing of aluminum alloy cast-rolling plate, and obtain more uniform recrystallized structure with smaller grain size. Electromagnetic-ultrasonic energy field can reduce the recrystallization texture intensity of aluminum alloy cast-rolling plate after cold-rolling and annealing, and inhibit preferred orientation, thus improving the deep drawing forming performances of aluminum alloy cast-rolling plate.
Key words: 1060 aluminum alloy; electromagnetic-ultrasonic cast-rolling; cold rolling; annealing; texture
