消失模铸造液-液复合Al/Mg双合金界面特征研究

江再良; 樊自田; 蒋文明; 李广宇; 吴耀; 刘鑫旺; 刘富初

doi:10.15980/j.tzzz.2018.06.015

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消失模铸造液-液复合Al/Mg双合金界面特征研究
Interface Characteristics of Lost Foam Casting Liquid-liquid Compound Al/Mg Bimetallic Alloys
2018年38卷第6期页码：632-636
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.06.015

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[1]江再良,樊自田,蒋文明,李广宇,吴耀,刘鑫旺,刘富初.消失模铸造液-液复合Al/Mg双合金界面特征研究[J].特种铸造及有色合金,2018,38(06):632-636.

Jiang Zailiang, Fan Zitian, Jiang Wenming, et al. Interface Characteristics of Lost Foam Casting Liquid-liquid Compound Al/Mg Bimetallic Alloys[J]. Special Casting & Nonferrous Alloys, 2018,38(6):632-636.
[1]江再良,樊自田,蒋文明,李广宇,吴耀,刘鑫旺,刘富初.消失模铸造液-液复合Al/Mg双合金界面特征研究[J].特种铸造及有色合金,2018,38(06):632-636. DOI： 10.15980/j.tzzz.2018.06.015.

Jiang Zailiang, Fan Zitian, Jiang Wenming, et al. Interface Characteristics of Lost Foam Casting Liquid-liquid Compound Al/Mg Bimetallic Alloys[J]. Special Casting & Nonferrous Alloys, 2018,38(6):632-636. DOI： 10.15980/j.tzzz.2018.06.015.

摘要

通过设置铝隔层

利用消失模铸造实现了Al/Mg双合金的液-液复合。使用扫描电镜（SEM）、能谱分析仪（EDS）和X射线衍射仪（XRD）研究了Al/Mg双合金界面的组织特征。结果表明

铝隔层成功阻止了液态合金混液

被完全熔化

与液态合金一起发生冶金反应。镁合金和铝合金实现了良好的冶金结合

形成了均匀的反应层

其中镁合金侧反应层是由Mg

相和δ-Mg相组成的共晶组织

铝合金侧反应层由连续分布的Al

相和颗粒状的Mg

Si相组成。

Abstract

The lost foam casting（LFC）liquid-liquid compound process was used to prepare the Al/Mg bimetallic castings by placing pure Al interlayer between AZ91Dand ZL101A.The microstructure and composition of the interface layer were analyzed by scanning electron microscopy（SEM）

energy dispersive spectroscopy（EDS）and X-ray diffractometer（XRD）.The results reveal that the pure Al interlayer can prevent successfully the liquid alloys mixing before it is melted

and then the melted interlayer presents metallurgical reaction with the liquid alloys

so AZ91Drealizes a desirable metallurgical bonding with ZL101Aand generates uniform reaction layers.The reaction layer near AZ91Dconsists of Mg

andδ-Mg eutectic phase

while the reaction layer near ZL101Ais composed of continuously distributed Al

phase and granular Mg

Si phase.