| A356铝合金半固态流变压铸件力学性能的研究 |
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| 引用本文： | 张军,康永林,张帆.A356铝合金半固态流变压铸件力学性能的研究[J].特种铸造及有色合金,2011,31(8):718-720. |
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| 作者姓名： | 张军 康永林 张帆 |
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| 作者单位： | 北京科技大学材料科学与工程学院 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2011CB606302-1); 广东省中国科学院全面战略合作项目(2009B091300017) |
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| 摘 要： | 采用自主研发的锥桶式流变成形机(TBR),进行了流变压铸工艺正交试验,研究了浇注温度、剪切速率及剪切温度对A356铝合金半固态流变压铸力学性能的影响规律,并确定了最佳的参数,使A356流变压铸件获得最优的力学性能。结果表明,影响抗拉强度的主要因素是浇注温度,影响伸长率的主要因素是剪切温度。TBR流变压铸工艺生产A356铝合金压铸件的最优工艺参数:浇注温度为655℃,剪切速度为5000s-1,剪切温度为600℃,在此工艺条件下,制备的半固态成形件力学性能为:σb=271MPa,δ=7.3%。
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| 关 键 词： | TBR 半固态 流变A356 力学性能 |
Mechanical Properties of Semi-solid Rheo-die Casting A356 Aluminum Parts |
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| Zhang Jun,Kang Yonglin,Zhang Fan.Mechanical Properties of Semi-solid Rheo-die Casting A356 Aluminum Parts[J].Special Casting & Nonferrous Alloys,2011,31(8):718-720. |
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| Authors: | Zhang Jun Kang Yonglin Zhang Fan |
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| Affiliation: | Zhang Jun,Kang Yonglin,Zhang Fan(School of Materials Science and Engineering,University of Science and Technology Beijing) |
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| Abstract: | In order to determine the best parameters to obtain the optimized mechanical properties of rheo-die casting A356 alloy parts,effects of pouring,rotating speed of inner barrel and shearing temperature on the mechanical properties of the rheo-casting parts were investigated by means of self-developed taper barrel rheo-moulding machine with orthogonal testing.The results show that tensile strength of the parts is mainly controlled by pouring temperature,and elongation is mainly dependent on the shearing temper... |
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| Keywords: | TBR Semi-solid A356 Alloy Mechanical Properties |
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