| Performance of Semi-solid Slurry Produced by Twin-screw Stirring Mixer and Rheo-diecasting Process of AZ91D Alloy |
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| 引用本文： | XIAOZe-hui LUOJi-rong WUShu-sen LIDong-nan. Performance of Semi-solid Slurry Produced by Twin-screw Stirring Mixer and Rheo-diecasting Process of AZ91D Alloy[J]. 武汉理工大学学报(材料科学英文版), 2004, 19(3): 81-85. DOI: 10.1007/BF02835069 |
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| 作者姓名： | XIAOZe-hui LUOJi-rong WUShu-sen LIDong-nan |
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| 作者单位： | Huazhong University |
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| 基金项目： | FundedbytheKeyScienceandTechnologyProjectofHu beiProvince (No.2 0 0 0 2P0 30 4 )andInnovationFundoftheMinistryofScienceandTechnologyofChina (No .0 1C2 6 2 1 4 2 0 0 91 1 ) |
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| 摘 要： | The microstructure of semi-solid slurry of AZ91D alloy, which was produced by twin-screw stirring mixer under the different parameters, was investigated. Rheoforming by cold chamber die casting process was performed thereafter. The results indicate that with decreasing of the barrel temperature of the mixer and the pouring temperature of molten Mg alloy, the solid fraction of semi-solid slurry increases and the size of non-den-dritic grains becomes smaller. While the shear rate increases, the solid fraction of semi-solid slurry decreases. The tensile strength and elongation of metal rheoformed by die casting are higher by about 37% and 44% respectively than those produced by conventional liquid die casting.
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| 关 键 词： | 镁合金 模具 铸造 半固态浆液 双发螺钉搅拌机 |
| 收稿时间： | 2003-04-02 |
| 修稿时间： | 2004-05-28 |
Performance of semi-solid slurry produced by twin-screw stirring mixer and rheo-diecasting process of AZ91D alloy |
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| Xiao Ze-hui,Luo Ji-rong,Wu Shu-sen,Li Dong-nan. Performance of semi-solid slurry produced by twin-screw stirring mixer and rheo-diecasting process of AZ91D alloy[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2004, 19(3): 81-85. DOI: 10.1007/BF02835069 |
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| Authors: | Xiao Ze-hui Luo Ji-rong Wu Shu-sen Li Dong-nan |
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| Affiliation: | XIAO Ze-hui LUO Ji-rong WU Shu-sen LI Dong-nan Huazhong University of Science and Technology |
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| Abstract: | The microstructure of semi-solid slurry of AZ91D alloy, which was produced by twin-screw stirring mixer under the different parameters, was investigated.Rheoforming by cold chamber die casting process was performed thereafter. The results indicate that with decreasing of the barrel temperature of the mixer and the pouring temperature of molten Mg alloy, the solid fraction of semi-solid slurry increases and the size of non-dendritic grains becomes smaller. While the shear rate increases, the solid fraction of semi-solid slurry decreases. The tensile strength and elongation of metal rheoformed by die casting are higher by about 37% and 44% respectively than those produced by conventional liquid die casting. |
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| Keywords: | semi-solid slurry magnesium alloy twin-screw rheoforming die casting |
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