| 喷射沉积Si-Al合金的数值模拟结果与分析 |
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| 引用本文： | 陈美英,杨滨,张济山.喷射沉积Si-Al合金的数值模拟结果与分析[J].北京科技大学学报,2003,25(5):428-432. |
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| 作者姓名： | 陈美英 杨滨 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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| 基金项目： | 北京市自然科学基金;; |
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| 摘 要： | 采用热辐射修正，模拟了喷射沉积Si-Al合金的凝固过程，研究了熔滴的速度、热交换作用系数、温度、熔滴冷却速度及固相分数与沉积距离的关系，讨论了辐射相修正前后熔滴的温度和固相分数的变化以及雾化压力和沉积距离对固相分数的影响．
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| 关 键 词： | 硅铝合金 喷射成形 数值模拟 凝固分析 制备 |
| 修稿时间： | 2002年12月17日 |
Numerical Simulation and Analysis of Spray-Deposited Silicon-Aluminum Alloys |
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| CHEN Meiying,YANG Bin,ZHANG Jishan
State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing ,China.Numerical Simulation and Analysis of Spray-Deposited Silicon-Aluminum Alloys[J].Journal of University of Science and Technology Beijing,2003,25(5):428-432. |
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| Authors: | CHEN Meiying YANG Bin ZHANG Jishan
State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing China |
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| Institution: | CHEN Meiying,YANG Bin,ZHANG Jishan
State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | The numerical simulation of solidification processing for Si-Al alloys prepared by spray forming was adopted by considing heat radiation in the cooling process of droplets. A relationship among droplet velocity, heat transfer coefficient, droplet temperature, cooling velocity of droplets, solid fraction and axial distance was acquired. The variations of droplet temperature and solid fraction before and after heat radiation is consided in the cooling process of droplets were investigated. The influence of atomization pressure and axial distance on solid fraction was also discussed |
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| Keywords: | Si-Al alloy spray forming numerical simulation solidification behavior |
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