Macroscale modeling of multi-physics fields during vacuum arc remelting of Ti-6Al-4V

Bin Zhu, Xiang Yi Xue, Hong Chao Kou, Cong Xiao, Jin Shan Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A 3-D finite element model has been established using ANSYS12.0 software to simulate multi-physical interaction behavior during the Vacuum Arc Remelting (VAR) of 740-mm-diameter ingots of Ti-6Al-4V. The models of temperature field, electromagnetic and flow field were combined by progressive method. The effect of thermal contraction was considered in the simulation of temperature field and electromagnetic by setting a thin layer with different nature parameters at the ingot-crucible interface. The model results demonstrate the distributions of temperature, Lorenz force and flow velocity, and the influence of water cooling conditions, melting current and other process parameters. The molten pool behavior is mostly dominated by buoyancy force under circumstances in this case. The increase of the melting current results in an increase of the pool depth and melting rate, and causes great change of the molten pool profile, while the influence of the water cooling conditions is ignored.

Original languageEnglish
Title of host publicationNano-Scale Materials, Materials Processing and Genomic Engineering
PublisherTrans Tech Publications Ltd
Pages603-607
Number of pages5
ISBN (Print)9783038350897
DOIs
StatePublished - 2014
Event12th IUMRS International Conference on Advanced Materials, IUMRS-ICAM 2013 - Qingdao, China
Duration: 22 Sep 201328 Sep 2013

Publication series

NameMaterials Science Forum
Volume789
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference12th IUMRS International Conference on Advanced Materials, IUMRS-ICAM 2013
Country/TerritoryChina
CityQingdao
Period22/09/1328/09/13

Keywords

  • Electro-magnetic field
  • Finite element method
  • Flow field
  • Temperature field
  • Vacuum arc remelting

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