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

doi:10.3724/SP.J.1037.2011.00586

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 Baicheng^{1, 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

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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.

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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)

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	HAN Guo-Min
	HAN Zhi-Jiang
	SUO Liang
	DUAN Jun-Peng
	ZHU Xun-Meng
	LIU Bai-Cheng

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https://www.ams.org.cn/EN/10.3724/SP.J.1037.2011.00586 OR https://www.ams.org.cn/EN/Y2012/V48/I3/363

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