Detail publikace

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

KARIMI-SIBAKI, E. KHARICHA, A. ABDI, M. LUDWIG, A. BOHÁČEK, J. VAKHRUSHEV, A. PREISS, B. WU, M.

Anglický název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

en

Originální abstrakt

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

Anglický abstrakt

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

Klíčová slova anglicky

Numerical modeling; Axial magnetic field (AMF); Melt pool profile; Ti64 alloy ingot

Vydáno

11.05.2022

Nakladatel

ELSEVIER

Místo

AMSTERDAM

ISSN

2238-7854

Ročník

19

Číslo

červenec

Strany od–do

183–193

Počet stran

11

BIBTEX


@article{BUT180330,
  author="Ebrahim {Karimi-Sibaki} and Abdellah {Kharicha} and Mehran {Abdi} and Andreas {Ludwig} and Jan {Boháček} and Alexander {Vakhrushev} and Bernhard {Preiss} and Menghuai {Wu},
  title="Numerical modeling and experimental validation of the effect of arc distribution on the as-solidified Ti64 ingot in vacuum arc remelting (VAR) process",
  year="2022",
  volume="19",
  number="červenec",
  month="May",
  pages="183--193",
  publisher="ELSEVIER",
  address="AMSTERDAM",
  issn="2238-7854"
}