| 喷雾沉积法制造的铝基复合材料的超塑性 |
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| 引用本文： | 李泽林,唐才荣,李华伦,李淼泉,胡锐.喷雾沉积法制造的铝基复合材料的超塑性[J].复合材料学报,1996,13(4):25-29. |
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| 作者姓名： | 李泽林 唐才荣 李华伦 李淼泉 胡锐 |
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| 作者单位： | 西北工业大学材料科学与工程系, 西安 710072 |
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| 基金项目： | 国家自然科学基金,航空科学基金,陕西省自然科学基金 |
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| 摘 要： | 喷雾沉积法制造的SiCP/LY12复合材料经热压和热正挤压后,晶粒得以细化,SiCP分布的均匀性大大改善.超塑性拉伸试验结果表明:SiCP/LY12复合材料具有超塑性;变形温度、应变速率对极限延伸率和应变速率敏感性指数m值均有较大的影响.在变形温度为500℃和初始应变速率为1.0×10-3s-1时,获得的极限延伸率为345%.
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| 关 键 词： | 铝基复合材料 喷雾沉积法 超塑性变形 极限延伸率 |
| 收稿时间： | 1994-09-16 |
| 修稿时间： | 1995-11-03 |
SUPERPLASTICITY OF ALUMINUM MATRIX COMPOSITE FABRICATED BY SPRAY ATOMIZATION AND CO DEPOSITION |
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| Li Zelin,Tang Cairong,Li Hualun,Li Miaoquan,Hu Rui.SUPERPLASTICITY OF ALUMINUM MATRIX COMPOSITE FABRICATED BY SPRAY ATOMIZATION AND CO DEPOSITION[J].Acta Materiae Compositae Sinica,1996,13(4):25-29. |
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| Authors: | Li Zelin Tang Cairong Li Hualun Li Miaoquan Hu Rui |
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| Affiliation: | Northwestern Polytechnical University, Xi'an 710072 |
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| Abstract: | The superplasticity of aluminum matrix fabricated by spray atomization and co-dleposition was investigated. Before superplastic deformation, the pretreatment of hot compress and hot forward extrusion was utilized. Fine gains and uniformly distributed SiCP in SiCP/LY12 composite are observed. The results of superplastically uniaxial tension show that the SiCP/LY12 composite has good superplasticity and the limit elongation and m-value are greatly affected by the temperature and strain rate. Moreover, the limit elongation is 345% in this compositewith 500℃ of temperature and 1.0×10-3s-1 of initial strain rate. |
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| Keywords: | aluminum matrix composite spray atomization and co-deposition superplastic deformation elongation |
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