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Analysis of solidification in a Bridgman furnace as a simulation of DC casting of aluminium alloy slabs
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.ORCID iD: 0000-0002-3622-4247
2007 (English)In: Materials Science and Technology, ISSN 0267-0836, E-ISSN 1743-2847, Vol. 23, no 4, 475-482 p.Article in journal (Refereed) Published
Abstract [en]

A vertical Bridgman directional solidification equipment has been used in several investigations to simulate DC casting of wrought aluminium alloys. As a base for such investigations and alloy developments, it is important to have an understanding of the performance of the used furnace during simulation of casting conditions. In this investigation the thermal conditions in the furnace have been analysed in detail, both by measurements and by mathematical modelling. The thermal characteristics of the furnace, such as gradient, growth rates and cooling rates have been compared to conditions in large ingots. The DC casting conditions, which the simulations have been compared to, are casting of slabs of 330 and 600 mm width of an AA3003 type alloy. The results show that the experiments are able to simulate the cooling conditions in the ingots except from the surface zone. Comparisons of the microstructure have been made and a good agreement has been obtained for structure parameters such as grain size and DAS.

Place, publisher, year, edition, pages
2007. Vol. 23, no 4, 475-482 p.
Keyword [en]
Aluminium alloys; DC casting; Directional solidification, Bridgman technique; Microstructure
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-3384ISI: 000246106600016Scopus ID: 2-s2.0-34548812836Local ID: 3381OAI: oai:DiVA.org:miun-3384DiVA: diva2:28416
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2016-09-26Bibliographically approved

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Citation style
  • apa
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