| 喷射沉积Al-20Si-5Fe-3Cu-1Mg合金的微观组织与力学性能 |
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| 引用本文： | 王锋,杨滨,崔华,段先进,张济山. 喷射沉积Al-20Si-5Fe-3Cu-1Mg合金的微观组织与力学性能[J]. 北京科技大学学报, 2000, 0(4) |
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| 作者姓名： | 王锋 杨滨 崔华 段先进 张济山 |
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| 作者单位： | 北京科技大学新金属材料国家重点实验室!北京100083 |
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| 摘 要： | 利用喷射沉积技术制备了Al－20Si－5Fe－3Cu-1Mg合金,借助扫描电镜（SEM），X-射线衍射和拉伸试验等手段研究了喷射沉积合金的微观组织和力学性能，分析了Fe对合金挤压和热处理后的组织变化．拉伸试验结果表明，喷射沉积Al－20Si-5Fe-3Cu-1Mg合金具有比粉末冶金Al-20Si-3Cu-1Mg合金更高的高温（300℃）强度．
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| 关 键 词： | 喷射沉积 热挤压 微观组织 力学性能 |
Microstructure and Mechanical Properties of Spray Deposited Al-20Si-5Fe-3Cu-1Mg Alloy |
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| WANG Feng, YANG Bin, CUI Hua, DUAN Xianjing, ZHANG Jishan. Microstructure and Mechanical Properties of Spray Deposited Al-20Si-5Fe-3Cu-1Mg Alloy[J]. Journal of University of Science and Technology Beijing, 2000, 0(4) |
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| Authors: | WANG Feng YANG Bin CUI Hua DUAN Xianjing ZHANG Jishan |
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| Abstract: | A1-20Si-5Fe-3Cu-1Mg alloy was synthesized by spray atomization and deposition technique.The microstructure and mechanical properties of the spray deposited hypereutectic Al-Si alloy were studied using optical microscopy, scanning electron microscopy, X-ray diffraction, and tensile tests. The effects of iron on the microstructural evolution of the high-silicon aluminum alloy after extrusion and heat treatment have been examined.The tensile test results indicate that the spray-deposited Al-20Si-5Fe-3Cu-1Mg alloy has better strength than the powder metallurgy processed Al-20Si-3Cu-1Mg alloy at elevated tempeate. |
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| Keywords: | spray deposition hot extrusion microstructure mechanical property |
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