Simulation of stresses during casting of binary magnesium-aluminum alloys
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Simulation of stresses during casting of binary magnesium-aluminum alloys. / Pokorny, M. G.; Monroe, C. A.; Beckermann, C. et al.
Magnesium Technology 2010 - Held During TMS 2010 Annual Meeting and Exhibition. Hrsg. / Sean R. Agnew; Neale R. Neelameggham; Eric A. Nyberg; Wim H. Sillekens. John Wiley & Sons Inc., 2010. S. 401-407 (Magnesium Technology).Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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TY - CHAP
T1 - Simulation of stresses during casting of binary magnesium-aluminum alloys
AU - Pokorny, M. G.
AU - Monroe, C. A.
AU - Beckermann, C.
AU - Zhen, Z.
AU - Hort, N.
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - Casting
KW - Magnesium Alloys
KW - Stress simulation
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=77952384275&partnerID=8YFLogxK
M3 - Article in conference proceedings
AN - SCOPUS:77952384275
SN - 9780873397469
T3 - Magnesium Technology
SP - 401
EP - 407
BT - Magnesium Technology 2010 - Held During TMS 2010 Annual Meeting and Exhibition
A2 - Agnew, Sean R.
A2 - Neelameggham, Neale R.
A2 - Nyberg, Eric A.
A2 - Sillekens, Wim H.
PB - John Wiley & Sons Inc.
T2 - Magnesium Technology 2010 - TMS 2010 Annual Meeting and Exhibition
Y2 - 14 February 2010 through 18 February 2010
ER -