Microstructure and Kinetics of β-Mg17Al12 Phase Transformation for Warm Rolled AZ91 Magnesium Alloy

摘要：

　　The microstructure and the kinetics of β-Mg17Al12 phase transformation during annealing process for warm-rolled AZ91 magnesium alloy were investigated.The results showed that few twins were found in solid state AZ91 magnesium alloy after warm rolling,which provides energy for β-Mg17Al12 particles to nucleate and growth; the β-Mg17Al12 particles were prior to form at α-Mg,twin grains boundary and especially the place of high energy; by the annealing time extending,the quantity of β-Mg17Al12 particles increased.And combined with the experimental data and the JMAK equation,the fitting equation of Kinetics of β-Mg17Al12 phase transformation was built.During annealing process,the twin grains disappeared and the original bulky organization was replaced by recrystallization grain,while the grain refinement was obvious with the grain reduction to 20-60μm.

关键词： AZ91 Magnesium alloy:Microstructure Kinetics of β-Mg17Al12 phase Rolling:Annealing

作者: Lin Yang Jundong Wang Sini Wang li Lin Zheng Liu

作者单位: School of Material Science and Engineering, Shenyang University of Technology, Shengyang 110870, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 421-425

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）