Simulation of stresses during casting of binary magnesium-aluminum alloys

Publikation: Beiträge in SammelwerkenAufsätze in KonferenzbändenForschungbegutachtet

Authors

  • M. G. Pokorny
  • C. A. Monroe
  • C. Beckermann
  • Z. Zhen
  • N. Hort

A visco-plastic deformation model is used to predict thermal stresses during casting of binary Mg-Al alloys. The predictions are compared to experiments that allow for the measurement of contraction forces during solidification and cooling. These force measurements, together with estimates from data found in the literature, are used to obtain the high-temperature mechanical properties needed in the stress model. The simulation results show generally good agreement with the measurements. The coherency and yielding behavior of the semi-solid material during solidification is investigated in some detail. It is found that coherency starts at a solid fraction of about 0.5 and that the maximum tensile stress at the final solidification temperature is 1.5 MPa and 4 MPa for Mg-1 and 9wt.%Al alloys, respectively.

OriginalspracheEnglisch
TitelMagnesium Technology 2010 - Held During TMS 2010 Annual Meeting and Exhibition
HerausgeberSean R. Agnew, Neale R. Neelameggham, Eric A. Nyberg, Wim H. Sillekens
Anzahl der Seiten7
VerlagJohn Wiley & Sons Inc.
Erscheinungsdatum2010
Seiten401-407
ISBN (Print)9780873397469
PublikationsstatusErschienen - 2010
Extern publiziertJa
VeranstaltungMagnesium Technology 2010 - TMS 2010 Annual Meeting and Exhibition - Seattle, WA, USA / Vereinigte Staaten
Dauer: 14.02.201018.02.2010

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