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Vol 214
Pages:
33
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Formiing of structure and properties of sheet strips from magnesium alloys in the conditions of twin roll casting process

Authors:
R. Kavalla1
V. Yu. Bazhin2
About authors
  • 1 — TU Bergakademie Freiberg Institute of Metal Forming
  • 2 — National Mineral Resources University (Mining University)
Date submitted:
2014-10-15
Date accepted:
2014-12-14
Date published:
2015-04-01

Abstract

In this article the problem of receiving high-quality cast strips from the magnesium alloys received by units of twin roll casting process in the combined methods is discussed. Production of sheets from magnesium alloys combination of casting and rolling at continuous giving of liquid melt to the rotating rolls is perspective and more economic method. Features of crystallization of magnesium alloys of AZ31 and AZ61 in a gap of rolls crystallizers depending on heat exchange conditions at change of technological parameters are considered. Due to impact on melt in forming system it is possible to provide formation of equal fine-grained structure of sheet hire without superficial defects. Development of the production technology of sheets from magnesium alloys creates possibility of their use of automobile branch as the facilitated details of bodies instead of the knots made of steel.

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References

  1. Альтман М.Б. Магниевые сплавы: Справочник. М.: Металлургия, 1978. Т.2. 346 с.
  2. Патент РФ № 2252088. Способ получения горячекатаной магниевой ленты / Х.Пирхер, Р.Кавалла. Опубл. 20.05.2005. Бюл. № 14.
  3. Специальные способы литья: Справочник / Под ред. В.А.Ефимова. М.: Машиностроение, 1991. 733 с.
  4. Шур И.А. Перспективы развития бесслитковой прокатки алюминиевых сплавов // Технология легких сплавов. 2001. № 5-6. С.38-41.
  5. Kawalla R. Properties of Magnesium Strips produced by Twin-Roll-Casting and Hot Rolling / R.Kawalla, M.Ullmann, C.Schmidt, J.Dembińska // Materials Science Forum. 2011. Vol.690. P.21-24.
  6. Ullmann M. Application of Magnesium Sheets and Strips in Vehicle Construction Freiberger Forschungshefte / M.Ullmann, F.Berge, K.Neh, R.Kawalla, H.Vogt. 2014. Vol.358. P.128-135.
  7. Watari H. Twin roll casting of magnesium alloys with high aluminum contents / H.Watari, T.Haga, Y.Shibue, K.Davey, N.Koga. Journal of Achievements in Materials and Manufacturing Engineering. September–October 2006. Vol.18. Iss.1-2. P.419-422.

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