喷射成形Al—Zn合金凝固过程模拟Ⅰ——单个液滴凝固行为
Modeling of Solidification Process of Al-Zn Droplet during Spray Forming,Part Ⅰ:Solidification Behavior of Single Droplet
查看参考文献22篇
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文摘
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应用群体动力学方法．模拟分析了雾化条件下Al-12Zn合金液滴凝固行为和气体初始速度、熔炼温度等参数对单个液滴凝固过程的影响。结果表明，液滴凝固过程可以分为液体冷却、形核和再辉、晶粒长大和共晶凝固、固体冷却5个阶段；对于给定尺寸的液滴．提高气体初始速度或提高熔炼温度，在相同飞行距离时的固相率减少。 |
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其他语种文摘
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A model based on the population dynamics method(PDM) was used to analyze the solidification behaviors of the Al-12Zn alloy droplets produced by gas atomization,and effects of the initial gas velocity and the melting temperature on the solidification process of single droplet were approached. The results show that the droplet undergoes five different thermal stages,i.e. liquid phase cooling,nucleation and recalescence,grain growth,eutectic solidification,solid phase cooling. The solid phase fraction in a droplet with a given size can be decreased with increasing in initial gas velocity or in melting temperature at the same flight distance. |
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来源
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特种铸造及有色合金
,2008,28(9):657-659 【核心库】
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关键词
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喷射成形
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液滴
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凝固
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模拟
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雾化
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地址
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1.
山东大学材料科学与工程学院
2.
黑龙江省区域地址调查所
3.
莱芜钢铁股份有限公司炼钢厂
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中国科学院金属研究所
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-2249 |
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学科
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数学;金属学与金属工艺 |
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基金
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国家教育部高等学校博士学科点专项科研基金新教师基金
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文献收藏号
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CSCD:3394950
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