| 双辊铸轧超高强铝合金有限元数值模拟 |
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| 引用本文： | 王洪斌,马鹏程,赵红阳. 双辊铸轧超高强铝合金有限元数值模拟[J]. 鞍山钢铁学院学报, 2011, 0(1): 15-20 |
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| 作者姓名： | 王洪斌 马鹏程 赵红阳 |
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| 作者单位： | 辽宁科技大学材料与冶金学院,辽宁鞍山114051 |
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| 基金项目： | 辽宁省教育厅重点实验室项目基金（LS2010088）;新金属材料国家重点实验室开放基金（2009Z03）. |
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| 摘 要： | 采用有限元法对双辊铸轧7075和7050铝合金的工艺过程进行了数值模拟,研究了合金成分和铸轧速度对铸轧熔池内温度场、流场和凝固场的影响规律。结果表明,在同一铸轧速度条件下,随着合金的等效比热增大,合金在铸轧熔池内的温度梯度随之减小,凝固速率减慢;对于同一种合金,随着铸轧速度增加,合金的速度梯度随之增大,熔池内所形成漩涡的位置下降。模拟结果为下一步的铸轧实验提供了理论依据
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| 关 键 词： | 双辊铸轧 超高强铝合金 数值模拟 |
FEM numerical simulation for twin-roll casting ultrahigh strength aluminum alloys |
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| WANG Hong-bin,MA Peng-cheng,ZHAO Hong-yang. FEM numerical simulation for twin-roll casting ultrahigh strength aluminum alloys[J]. Journal of Anshan Institute of Iron and Steel Technology, 2011, 0(1): 15-20 |
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| Authors: | WANG Hong-bin MA Peng-cheng ZHAO Hong-yang |
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| Affiliation: | (School of Material and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China) |
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| Abstract: | The thermal fluid coupled analysis is carried out based on commercial finite element method（FEM） for twin-roll casting process of 7075 and 7050 aluminum alloys.The effects of the alloy compositions and casting velocities on temperature field,flow field and solidification field of casting pool are researched.The results show that the temperature gradient of alloys is fallen with the increase of equivalent specific heat,and the solidification rate is lower at the same casting rolling velocity.For the same alloy,the velocity gradient of the alloy is greater and location of the vortex formed in the molten pool is descended with the increase of casting rolling velocity.The results of the FEM simulation provide a theoretical basis for the future cast-rolling experiments |
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| Keywords: | twin-roll casting ultrahigh strength aluminum alloy numerical simulation |
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