Microstructure of fly ash cenosphere/AZ91D composite during solution treatment at 380-420°C

被引：0
作者：
Huang Zhiqiu [1 ,2 ,3 ]
Yu Sirong [1 ,2 ]
Li Muqin [3 ]
Liu Hongli [3 ]
机构：
[1] Jilin Univ, Minist Educ, Key Lab Automobile Mat, Changchun 130025, Peoples R China
[2] Jilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
[3] Jiamusi Univ, Coll Mat Sci & Engn, Jiamusi 154007, Peoples R China
来源：
CHINA FOUNDRY | 2011年 / 8卷 / 01期
关键词：
composite materials; liquid-solid reactions; quenching; microstructure; SOLUTION HEAT-TREATMENT; ALLOY; BEHAVIOR; SOLIDIFICATION; EVOLUTION;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The fly ash cenosphere/AZ91D (FAC/AZ91D) composites containing 5 wt.% and 100 pm in size of fly-ash cenosphere particles were fabricated by means of the compcasting method. The microstructures of the as-cast samples and the effect of the solution treatment at 380 degrees C, 400 degrees C, and 420 degrees C for 16 h on the microstructures of the samples were investigated by using of OM, SEM, XRD and EDS. The results showed that the cenospheres distributed homogeneously in the Mg alloy, and were almost filled with Mg alloy. The main interfacial phase between the cenospheres and AZ91D Mg alloy was identified as MgAl(2)O(4) according to XRD, EDS and thermodynamic analysis. Mg(2)Si particles tended to be spheroidized via the solution treatment and the beta phase (Mg(17)Al(12)) dissolved completely at 400 degrees C.
引用
收藏
页码：117 / 120
页数：4
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