Distribution and formation of Al-Mn phases in AZ series magnesium alloys

被引：0
|
作者：
Wang J. [1 ,2 ]
Tong W.-H. [1 ]
Gao E.-Z. [1 ]
Zhou J.-X. [2 ]
机构：
[1] School of Material Science and Engineering, Shenyang Aerospace University, Shenyang
[2] Shandong Key Laboratory for High Strength Lightweight Metallic Materials Institute, Qilu University of Technology, Shandong Academy of Sciences, Ji'nan
来源：
Wang, Jie (20113227@sau.edu.cn) | 1600年 / Central South University of Technology卷 / 31期
关键词：
Al-Mn phase; AZ Series magnesium alloys; Distribution; Formation; Oxide inclusion;
D O I：
10.11817/j.ysxb.1004.0609.2021-37762
中图分类号：
学科分类号：
摘要：
The distribution and formation of Al-Mn phase in AZ series magnesium alloys (AZ31, AZ80, and AZ91) were investigated by OM, SEM and EPMA. The composition of Al-Mn phase on grains, grain boundary and oxide inclusions, as well as the precipitation mechanism of Al-Mn phase on the oxide inclusions was discussed. The results show that the Al-Mn phases in AZ system magnesium alloys are mainly granular, rod-like and irregular block, with size of less than 30 μm. Al8Mn5 or Al8(Mn, Fe)5 are dispersed on the primary α-Mg, β-Mgl7Al12 phase and grain boundary. The entrained MgO in AZ series alloys can induce the precipitation of Al8Mn5 particles which cluster around MgO. The mechanism of formation and enrichment of Al8Mn5 on MgO is analyzed, and the precipitation modes of nucleation and growth of Al8Mn5 phase on MgO in the AZ series magnesium alloys are obtained. © 2021, Science Press. All right reserved.
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页码：310 / 321
页数：11
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