On the Formation of Macrosegregations in Steel Ingot Castings

On the Formation of Macrosegregations in Steel Ingot Castings

A multiphase approach is used to study macrosegregation phenomena that occur during solidification of steel ingot castings. The goal is to enhance the understanding of different mechanisms of macrosegregation formation. 4 different cases are presented consecutively with increasing complexity of the...

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Veröffentlicht in:Steel research international 2008-08, Vol.79 (8), p.637-644
Hauptverfasser: Wu, Menghuai, Konozsy, Laszlo, Ludwig, Andreas, Schutzenhofer, Wolfgang, Tanzer, Robert
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container_end_page 644
container_issue 8
container_start_page 637
container_title Steel research international
container_volume 79
creator Wu, Menghuai
Konozsy, Laszlo
Ludwig, Andreas
Schutzenhofer, Wolfgang
Tanzer, Robert
description A multiphase approach is used to study macrosegregation phenomena that occur during solidification of steel ingot castings. The goal is to enhance the understanding of different mechanisms of macrosegregation formation. 4 different cases are presented consecutively with increasing complexity of the model assumptions and increasing dimensions: (1) feeding-induced macrosegregations in 1-dimentional unidirectional solidification situation, (2) macrosegregations caused by thermosolutal buoyancy driven flow in a 2-dimensional axially symmetric benchmark ingot, (3) macrosegregations caused by grain sedimentation in the same 2-dimensional ingot, and (4) macrosegregations which form during mixed equiaxed-columnar solidification in a full 3-dimensional benchmark ingot.
doi_str_mv 10.2374/SR108SP020-79-2008
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title On the Formation of Macrosegregations in Steel Ingot Castings
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