Numerical modeling and experimental validation of the effect of arc distribution on the as-solidified Ti64 ingot in vacuum arc remelting (VAR) process

被引：19

作者：

Karimi-Sibaki, E. ^{[1
]}

Kharicha, A. ^{[1
]}

Vakhrushev, A. ^{[1
]}

Abdi, M. ^{[1
]}

Wu, M. ^{[2
]}

Ludwig, A. ^{[2
,3
]}

Bohacek, J. ^{[3
]}

Preiss, B. ^{[4
]}

机构：

[1] Univ Leoben, Christian Doppler Lab Met Applicat Magnetohydrodyn, Franz Josef Str 18, A-8700 Leoben, Austria

[2] Univ Leoben, Chair Simulat & Modeling Met Proc, Franz Josef Str 18, A-8700 Leoben, Austria

[3] Brno Univ Technol, Fac Mech Engn, Heat Transfer & Fluid Flow Lab, Tech 2896-2, Brno 61669, Czech Republic

[4] INTECO Melting & Casting Technol GmbH, A-8600 Bruck Mur, Austria

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2022年 / 19卷

关键词：

Numerical modeling; Axial magnetic field (AMF); Melt pool profile; Ti64 alloy ingot; THERMOPHYSICAL PROPERTIES; ELECTRODE-GAP; CO PRESSURE; FLOW; SIMULATION; CONVECTION; PARTITION; BEHAVIOR; POWER;

D O I：

10.1016/j.jmrt.2022.05.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A numerical model coupling electromagnetic field and plasma arc impact with multiphase transport phenomena such as flow, heat transfer and solidification for the vacuum arc remelting (VAR) process is proposed. 3D simulations of the VAR process for refining a Titanium-based (Ti-6Al-4V) alloy are made. Different arc distributions (diffusive, constricted centric, constricted eccentric, and rotating arcs) under an axial magnetic field (AMF) are studied, focusing on their impact on the flow patterns and the resulting melt pool of the as-solidifying ingot. Simulation results show that diffusive arc leads to a shallow symmetrical melt pool; constricted centric and rotating arcs lead to electro-vortex flow and the symmetrical melt pool; constricted eccentric leads to electro-vortex flow as well, but the deepest non-symmetrical melt pool. (c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC

引用

页码：183 / 193

页数：11

共 24 条

[21] Numerical simulation of temperature distribution and heat transfer during solidification of titanium alloy ingots in vacuum arc remelting process
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[22] Numerical simulation of temperature distribution and heat transfer during solidification of titanium alloy ingots in vacuum arc remelting process
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[23] A Coupled Magnetohydrodynamics (MHD) and Thermal Stress-Strain Model to Explore the Impact of Gas Cooling on Ingot Solidification Shrinkage in Vacuum Arc Remelting (VAR) Process
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METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2024, 55 (06): : 4408 - 4417
[24] Process modeling and control for additive manufacturing of Ti-6Al-4V using plasma arc welding- methodology and experimental validation
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