Yuan LIU
,
Yanxiang LI
,
Jingjie GUO
,
Jun JIA
材料科学技术（英）
Immiscible alloys are attractive for their valuable physical and mechanical properties. In this paper, Al-In immiscible alloy is prepared by melt spinning process and its morphological evolution is studied at various indium contents. The results show that the morphologies of the matrix phase depend on the indium content. Different morphologies lead to different distribution of the second phase particles. Due to a particular solidification mechanism of immiscible alloys, even under the melt spinning rapid solidification condition, it is still impossible to produce homogeneous Al-In hypomonotectic alloy ribbons. But for Al-In hypermonotectic alloys, there is almost no segregation of the second phase throughout the cross section of the ribbons.
关键词:
Immiscible alloys
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Zhenhua LI
,
Yanxiang LI
,
Huiyuan GENG
,
Jianjun CHEN
,
Chunyan ZHOU
,
Junfa CHEN
材料科学技术（英）
Using an artificial intelligent instrument and a computer feedback control method, a new thermal simulation system is studied. Based on numerical simulation of casting solidification, a sample in the new system successfully simulated the solidification of heavy section ductile iron. The results show that the new thermal simulation system is accurate and reliable. Not only cooling curve but also graphite in the center of the thermal sample and the heavy section ductile iron is identical. Realization of accurate thermal simulation of solidification in heavy section ductile iron will be helpful for studying formation mechanism and controlling graphite degeneration in heavy section ductile iron.
关键词:
Thermal simulation
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