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Microstructure,Mechanical Properties and Die-Filling Behavior of High-Performance Die-Cast Al-Mg-Si-Mn Alloy 被引量:6
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作者 Zu-Qi Hu Xin-Jian Zhang Shu-Sen Wu 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2015年第11期1344-1353,共10页
This work aims to reveal the relationships between the microstructure, mechanical properties and flow behavior of die-casting AlMg5Si2Mn alloy. Results indicated that the microstructure of the die-cast AlMgsSi2Mn cons... This work aims to reveal the relationships between the microstructure, mechanical properties and flow behavior of die-casting AlMg5Si2Mn alloy. Results indicated that the microstructure of the die-cast AlMgsSi2Mn consists of α1-Al grains, fine-size α2-Al grains and (Al + Mg2Si) eutectic. The surface layer observed has the thickness in a range of 120-135 μm, while an ellipse-like surface layer edge is observed in the corner of the plateqike sample. Tensile strength and elongation (3) of the specimens are slightly decreased along the die-filling direction due to the backflow of melt. Pure (Al + Mg2Si) eutectic layer and ultra-fine-size α2-Al grains observed are around the overflow channels. Mass feeding is predominantly responsible for the superior mechanical properties of the round bars as compared to those of plate-like samples. 展开更多
关键词 High-pressure die casting Aluminum alloy Microstructure segregations Mechanicalproperties die-filling behavior Numerical simulation
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