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- W2409676856 abstract "This paper reviews our recent research on the solidification of several alloy systems under the action of electromagnetic field. We have developed a new solidification process, namely Electromagnetic Centrifugal Casting, by introducing a direct current magnetic field to centrifugal casting. The fundamentals of this new process, such as the force field and the now field in the liquid metal, and the solidified structures, have been studied by simulations as well as by experiments. It is found that, under the action of electromagnetic force, the flow of liquid metal in front of the solid/liquid interface greatly changes the solidified structures and promotes the columnar-equiaxed transition. The tensile properties of the castings at both room temperature and high temperatures are notably enhanced. In particular, the creep rupture strength of 25 Cr-20 %Ni-Fe alloy (HK40), a typical austenite heat-resistant steel, is remarkably improved. This technique can be applied to cast heat-resistant steel tubes that are widely used in petrochemical and metallurgical industries. The paper also deals with the solidification behavior of a nickel-base super-alloy in an electric field. The morphology of the gamma prime phase in the alloy changes from cubic to irregular shape when the strength of the electric field increases. At mean time, the amount of the gamma' phase also increases. The results indicate potential applications in directional solidification or single crystal growth of superalloys." @default.
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- W2409676856 title "Solidification of alloys in electromagnetic field" @default.
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