Acta Metall Sin  2012, Vol. 48 Issue (3): 363-370    DOI: 10.3724/SP.J.1037.2011.00586

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MICROSTRUCTURE SIMULATION AND MECHANICAL PROPERTY PREDICTION OF MAGNESIUM ALLOY CASTING CONSIDERING SOLID SOLUTION AND AGING PROCESS

HAN Guomin1), HAN Zhiqiang1), HUO Liang1), DUAN Junpeng2), ZHU Xunming2), LIU Baicheng1, 3)

1) Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Department of Mechanical Engineering, Tsinghua University, Beijing 100084 2) Wanfeng Magnesium Co. Ltd., Weihai 264209 3) State Key Laboratory of Automotive Safety and Energy, Department of Automotive Engineering, Tsinghua University, Beijing 100084

HAN Guomin HAN Zhiqiang HUO Liang DUAN Junpeng ZHU Xunming LIU Baicheng. MICROSTRUCTURE SIMULATION AND MECHANICAL PROPERTY PREDICTION OF MAGNESIUM ALLOY CASTING CONSIDERING SOLID SOLUTION AND AGING PROCESS. Acta Metall Sin, 2012, 48(3): 363-370.

Abstract References Related Articles Recommended Metrics Download:  PDF(2855KB)  Export:  BibTeX | EndNote (RIS)       Abstract  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. Key words:  magnesium alloy      microstructure evolution model      mechanical property model      automobile wheel casting      Received:  17 September 2011      Fund:  Supported by National Natural Science Foundation of China (No.51175291), Tsinghua University Initiative Scientific Research Program and Ministry of Science and Technology of China (No.2010DFA72760) Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors HAN Guo-Min HAN Zhi-Jiang SUO Liang DUAN Jun-Peng ZHU Xun-Meng LIU Bai-Cheng URL:  https://www.ams.org.cn/EN/10.3724/SP.J.1037.2011.00586     OR     https://www.ams.org.cn/EN/Y2012/V48/I3/363 [1] Fribourg G, Brechet Y, Deschamps A, Simar A. Acta Mater, 2011; 59: 3621 [2] Smoljan B, Iljki´c, D, Tomaˇsi´c N. J Achiev Mater Manuf Eng, 2010; 40: 155 [3] Panuˇskov´a M, Tillov´a E, Chalupov´a M. Strength Mater, 2008; 40: 98 [4] Liu Z Y, Xu Q Y, Liu B C. 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