| Extrusion behavior of micro-nanostructured A1-18%Si alloy powders |
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| 引用本文： | 梁红玉 欧阳志英 毛协民 胡志恒. Extrusion behavior of micro-nanostructured A1-18%Si alloy powders[J]. 中国有色金属学会会刊, 2006, 16(A03): 1327-1331 |
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| 作者姓名： | 梁红玉 欧阳志英 毛协民 胡志恒 |
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| 作者单位： | [1]School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China [2]Department of Mechanical and Electronic Engineering, Zhongbei University, Taiyuan 030008, China |
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| 基金项目： | Foundation item： Project（514120203） supported by the Advanced Investigation Foundation of Weapon Equipment |
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| 摘 要： | The extrusion of Al-Si alloy powders with different particle sizes allows manufacture of different products with unique microstructures and therefore with unique mechanical properties. The effects of powder size on the extrusion behavior and process defect of Al-18%Si alloy were studied by means of microscopy （optical, scanning electron） and density determination. The main objective of the work is to demonstrate the influence of the powder material characteristics on final density and quality of bar. The results show that the bigger the powder particles, the better the performance of cold compacting. The surface of alloy bar extruded from big particles has good quality without cracking. While the smaller the powder particles, the higher the density and the better the microstructure and mechanical properties. For practice application, the mixed powders are better than single powder.
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| 关 键 词： | 铝 硅 合金 颗粒 微观结构 机械性能 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Extrusion behavior of micro-nanostructured A1-18%Si alloy powders |
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| LIANG Hong-yu, OUYANG Zhi-ying, MAO Xie-min, HU Zhi-heng. Extrusion behavior of micro-nanostructured A1-18%Si alloy powders[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(A03): 1327-1331 |
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| Authors: | LIANG Hong-yu OUYANG Zhi-ying MAO Xie-min HU Zhi-heng |
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| Abstract: | |
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| Keywords: | rapid solidification gas atomization micro-nanostructure extrusion cold compacting mixed powders |
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