Influence of the electromagnetic stirring on globularization of primary solid phase in solid-liquid region

Dock Young Lee, Ki Bae Kim, Do Hyang Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

Forming of alloy and composite within a solid-liquid region, i.e. thixo-forming and rheo-forming, has been recognized as a technology offering several potential advantages over casting and forging such as a low forming pressure, reduction of macrosegregation, and reduction of porosity. In this paper, a globularization for primary solid phase by a forced fluid flow in melt due to electromagnetic stirring during solidification and isothermal stirring at solid-liquid region, was examined to produce Al alloy having a globular solid phase to get a thixotropic behavior. The electromagnetic stirrer was specially designed and manufactured to create all kind of fluid flow pattern such as a circumferential, vertical, helicoidally and contra-rotating flow pattern during the solidification of a melt. The size and roundness of primary solid phase of the quenched sample after isothermal stirring at solid-liquid region were measured with respect to a stirring time and frequency. The globularization of solid phase was enhanced with incresing the stirring time and electromagnetic flux density, i.e. stirring strength.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design VI - Proceedings of the 6th International Symposium on Eco-Materials Processing and Design, ISEPD-6
PublisherTrans Tech Publications Ltd
Pages550-553
Number of pages4
ISBN (Print)0878499660, 9780878499663
DOIs
Publication statusPublished - 2005
Event6th International Symposium on Eco-Materials Processing and Design, ISEPD-6 - Jinju, Korea, Republic of
Duration: 2005 Jan 162005 Jan 18

Publication series

NameMaterials Science Forum
Volume486-487
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other6th International Symposium on Eco-Materials Processing and Design, ISEPD-6
CountryKorea, Republic of
CityJinju
Period05/1/1605/1/18

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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