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Acta Metall Sin  2009, Vol. 45 Issue (12): 1435-1440    DOI:
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EFFECTS OF CONVECTIONS AND MOTIONS OF MINORITY PHASE DROPLETS ON SOLIDIFICATION OF MONOTECTIC ALLOYS
ZHAO Jiuzhou; LI Haili; ZHAO Lei
Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016
Cite this article: 

ZHAO Jiuzhou LI Haili ZHAO Lei. EFFECTS OF CONVECTIONS AND MOTIONS OF MINORITY PHASE DROPLETS ON SOLIDIFICATION OF MONOTECTIC ALLOYS. Acta Metall Sin, 2009, 45(12): 1435-1440.

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Abstract  

Many alloys show a phase diagram characterized by the appearance of a miscibility gap in the liquid state. Some of them have great potentials to be used in industry. But when a homogeneous, single–phase liquid is cooled into the miscibility gap, the components are no longer miscible and two liquid phases develop. Generally the liquid–liquid decomposition causes the formation of the microstructure with serios segregation. The microstructure evolution during the liquid—liquid phase transformation of monotectic alloys is a result of the common actions of manfactors. It is very complex, especially the convection of the matrix and the motion of the minority phase droplets migt mix thigs p and make it extremely difficult to ivestigate te solidification process of monotectic alloys. In this paper, the effects of convection and minority phase droplet motion on the solidification of monotectic alloys were introducedthe current situation of researces in this field was overviewed.

Key words:  monotectic alloy      liquid-liquid phase transformation      convection      solidification      overview     
Received:  23 April 2009     
ZTFLH: 

TG113.12

 
Fund: 

Supported by National Natural Science Foundation of China (Nos.u0837601, 50771097 and 50671111)

URL: 

https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2009/V45/I12/1435

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