Review of mathematical models of fluid flow, heat transfer, and mass transfer in electroslag remelting process

Hernández-Morales, B.; Mitchell, A.

doi:10.1179/030192399677275

Cited by 137 publications

(75 citation statements)

References 16 publications

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“…Then the effective thermal conductivity can be calculated with Eqs. (1) and (2). Table 3 showed the detailed data for different slag and temperature.…”

Section: Resultsmentioning

confidence: 99%

“…1) Many mathematical models have been developed to simulating the electroslag remelting process. [2][3][4][5][6][7][8] The purpose of most models is to study how to obtain the optimal solidification condition. A lot of parameters are essential to deal with the work including power supply, flow rate and temperature of cooling water, geometry of furnace and so on.…”

Section: Introductionmentioning

confidence: 99%

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Effective Thermal Conductivity of Slag Crust for ESR Slag

et al. 2015

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“…Then the effective thermal conductivity can be calculated with Eqs. (1) and (2). Table 3 showed the detailed data for different slag and temperature.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effective Thermal Conductivity of Slag Crust for ESR Slag

et al. 2015

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“…Moreover, it has been suggested that the metal pool profile profoundly alters the solute transport and macrosegregation map in the ESR ingot. [3][4][5] Therefore, the effect of the slag weight on the metal pool profile should be clearly understood.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on the Effect of Slag Thickness on Metal Pool Profile in Electroslag Remelting Process

Wang

2016

ISIJ International

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A transient three-dimensional (3D) model was developed to understand the role slag thickness plays in the formation of the metal pool in the electroslag remelting (ESR) process. In this model, the solution of the mass, momentum and energy conservation equations were simultaneously implemented by the finite volume method with full coupling of the Joule heating and Lorentz force by solving the Maxwell's equations. The movement of metal droplet was described by volume of fluid (VOF) approach. Additionally, the solidification was modeled using an enthalpy-based technique, where the mushy zone was treated as a porous medium. The experiment and simulation demonstrated a reasonable agreement. The results indicate that changing the slag thickness changes the slag temperature, but not monotonically. The slag temperature drops with the slag thickness up to 60 mm, beyond which the slag temperature rises. The melt rate decreases and then increases while the cooling intensity remains unchanged. As a consequence, the maximal metal pool depth reduces from 0.081 m to 0.067 m and slightly increases to 0.074 m.

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“…1,2) During the process, an alternating or direct current is passed from the electrode to the baseplate, which generated enough Joule heating in the highly resistive molten slag that melts the electrode. As a result, at the electrode tip a molten metal is generated, and a metal droplet would be formed with the continuous melting.…”

Section: Introductionmentioning

confidence: 99%