The Microstructure of Fly Ash Cenosphere/AZ91D Composite during Solution Treatment at 380C-420C

摘要：

The fly ash cenosphere/AZ91D(FAC/AZ91D) composites contAlning 5 wt.％ and 100lJm in size of fly - ash cenospheres particles were fabricated by means of compcasting method. The microstructures of the as-cast samples and the effect of the solution treatment at 380℃,400℃, and 420℃ for 16h on the microstructures of the samples were investigated using OM, SEM, XRD and EDS. The results showed that the cenospheres distributed homogeneously in Mg alloy, and were almost filled with Mg alloy. The mAln interfacial phase between the cenosphere and AZ91D Mg alloy was identified as MgAl2O4 according to XRD, EDS and thermodynamic analysis. Mg2Si particles tended to be spherodized via the solution treatment and the 13 phase(Mg17Al12)dissolved completely at 400℃.

关键词： composite materials liquid - solid reactions quenching microstructure

作者: Huang Zhiqiu Yu Sirong Li Muqin Liu Hongli

作者单位: Key Laboratory of Automobile Materials (Jilin University) ,Ministry of Education, and College of Mat Key Laboratory of Automobile Materials (Jilin University) ,Ministry of Education,and College of Mate College of Materials Science and Engineering, Iiamusi University,Iiamusi 154007 , China

会议类型: 国际会议

会议名称: 69th World Foundry Congress(第69届世界铸造会议 WFC 2010)

会议地点: 杭州

会议语种:英文

页码: 488-491

在线出版日期: 2010-10-16（万方平台首次上网日期，不代表论文的发表时间）