A microstructure model was established for simulating the microstructure evolution during casting, solid solution and aging process of magnesium alloy casting based on the modified cellular automaton (CA) model. A mechanical property model taking into account the second phase precipitation and strengthening mechanism was developed for Mg-Al alloy. The established models were applied to simulate the microstructure evolution and predict the mechanical properties of a magnesium alloy automobile wheel casting. The results show that the predicted tensile strength is in good agreement with the average measurements, and the predicted yield strength is in good agreement with the average measurements under as-cast and solid solution state, while there are some discrepancies between the predicted and measured yield strengths under aging state.
HAN Guo-Min
,
HAN Zhi-Jiang
,
SUO Liang
,
DUAN Jun-Peng
,
ZHU Xun-Meng
,
LIU Bai-Cheng
. MICROSTRUCTURE SIMULATION AND MECHANICAL PROPERTY PREDICTION OF MAGNESIUM ALLOY CASTING CONSIDERING SOLID SOLUTION AND AGING PROCESS[J]. Acta Metall Sin, 2012
, 48(3)
: 363
-370
.
DOI: 10.3724/SP.J.1037.2011.00586
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