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Feasibility of semi-solid die casting of ADC12 aluminum alloy S. JANUDOM1, T. RATTANOCHAIKUL1, R. BURAPA2, S. WISUTMETHANGOON3, J. WANNASIN1 1. Department of Mining and Materials Engineering... June 2010 Abstract: The feasibility of semi-solid die casting of ADC12 aluminum alloy was studied. The effects of plunger speed, gate thickness, and solid fraction of the slurry on the defects were......
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TEM study on microstructures and properties of 7050 aluminum alloy during thermal exposure SHEN Kai(沈 凯)1 , CHEN Jin-ling(陈金灵)1, YIN Zhi-min(尹志民)2 1. School of Materials Science and Technology...; Abstract: The microstructures of 7050 aluminum alloy under different thermal exposure conditions were investigated by means of transmission electron microscopy (TEM), high resolution......
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Al-7Si-Mg铸造铝合金凝固和热处理过程微观组织模拟和屈服强度预测陈瑞1,许庆彦1,柳百成11. 清华大学材料学院先进成形制造教育部重点实验室摘 要:Al-7Si-Mg铸造铝合金的力学性能受凝固条件和热处理工艺参数的影响,如何建立各阶段工艺参数与微观组织,合金性能之间的定量化模型,对于优化工艺条件,提高合金性能具有重要的工程应用价值.建立了能够描述凝固,固溶处理和时效处理过程中微观组织演变的全过程,多尺度数值模型,并建立了相应强化模型,实现铸件最终屈服强度的预测.模拟了Al-7Si-Mg合金在各阶段的微观组织演变,并与实验结果进行了比较,分析了工艺参数对微观组织和合金屈服强度的影响规律.模拟和实验结果表明:二次枝晶臂间距随着冷却速率的增大而减小.Mg2Si颗粒的溶解和共晶Si的熔断在短时的固溶处理......
ARTIFICIAL NEURAL NETWORK MODEL OF CONSTITUTIVE RELATIONSHIP FOR 2A70 ALUMINUM ALLOY Y.Y. Yang1,Y. Lu1,D.B. Shan1,F. Liu1 (1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China) Abstract:The hot deformation behavior of 2A70 aluminum alloy was investigated by means of isothermal compression tests performed on a Gleeble-1500 thermal simulator over......
J. Cent. South Univ. Technol. (2007)04-0456-04 DOI: 10.1007/s11771-007-0089-x Modeling effects of constituents and dispersoids on tensile ductility of aluminum alloy SONG Min(宋 旼...) ____________________________________________________________________ Abstract: The modeling effects of constituents and dispersoids on the tensile ductility of aluminum alloy were studied. The results show that the tensile ductility decreases with the increase......
Evolution of microstructure in semi-solid slurries of rheocast aluminum alloy R. CANYOOK1, S. PETSUT1, S. WISUTMETHANGOON2, M. C. FLEMINGS3, J. WANNASIN1 1. Department of Mining and Materials... of the slurry at the desired time. Samples of semi-solid 356 aluminum alloy were taken at different gas injection times of 1, 5, 10, 15, 20, 30, 35, 40, and 45 s. Analysis of the microstructure......
Calculation of cooling rate of amorphous aluminum alloy melt-spun ribbons HE Shi-wen (何世文), LIU Yong(刘 咏), LIU Zu-ming(刘祖铭), HUANG Bai-yun(黄伯云) State Key Laboratory of Powder Metallurgy... If we substitute the thermophysical properties in Table 1 into Eqn.(9), then Ti=626.74 K. And we substitute Ti=626.74 K into Eqn.(4), then the temperature field of aluminum alloy ribbon is ......
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