6061变形铝合金退火过程中的晶粒分布研究  

Study on Grain Distribution of Wrought 6061 Aluminum Alloy During Annealing

作　　者：林冬梅[1] 

机构地区：[1]淄博职业学院,山东淄博255000

出　　处：《铸造技术》2014年第6期1196-1198,共3页Foundry Technology

基　　金：山东省科技厅科学研究基金项目(XYSK09YB006)

摘　　要：通过建立相场模型,结合网格畸变模型,对6061变形铝合金的再结晶过程进行计算机模拟,研究其在不同退火温度下的晶粒长大过程和尺寸分布。结果表明,再结晶形核先在晶界处形成,并以合并和吞噬周围晶粒的方式不断长大向晶粒内部发展。大尺寸晶粒随退火温度的升高而增加,出现晶粒粗化现象。The grain growth and grain distribution of wrougnt 6061 aluminum alloy during annealing were studied by the phase-field function model and the mesh distortion model. The results show that the recrystallization nucleation form at grain boundaries, and then extend to the grains by merging and swallowing the surrounding grains. The grains are coarsening due to increasing of the annealing temperature.

关 键 词：铝合金 相场模型 晶粒分布 

分 类 号：TG166.3[金属学及工艺—热处理]