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| TiAl合金真空自耗熔炼过程的数值模拟 | |
| 引用本文： | 高帆,王新英,王磊,韩鹏彪,张继. TiAl合金真空自耗熔炼过程的数值模拟[J]. 特种铸造及有色合金, 2011, 31(7): 608-611. DOI: 10.3870/tzzz.2011.07.006 |
| 作者姓名： | 高帆 王新英 王磊 韩鹏彪 张继 |
| 作者单位： | 1. 东北大学材料各向异性与织构教育部重点实验室;钢铁研究总院高温材料研究所 2. 钢铁研究总院高温材料研究所 3. 东北大学材料各向异性与织构教育部重点实验室 4. 河北科技大学材料科学与工程学院 |
| 摘 要： | 通过数值模拟研究了直径为180mm的TiAl合金铸锭的真空自耗冶炼过程,获得了TiAl合金真空自耗熔炼过程中熔炼温度、熔炼速度和冷却能力对金属熔池温度梯度、熔池形状和糊状区宽度的影响规律。结果表明,随熔炼温度升高,熔池深度增加,其形状由碗状向V形转变,熔炼温度对熔池中温度梯度和凝固前沿糊状区宽度影响较小;随熔炼速度增加,熔池中温度梯度显著减小,糊状区宽度和熔池深度则明显降低;随冷却能力增加,糊状区宽度明显减小,熔池中温度梯度和熔池深度略有减小。 |
| 关 键 词： | TiAl合金 真空自耗 熔池形状 糊状区 |
Numerical Simulation of Vacuum Remelting Process for TiAl Alloy |
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| Gao Fan,Wang Xinying,Wang Lei,Han Pengbiao,Zhang Ji. Numerical Simulation of Vacuum Remelting Process for TiAl Alloy[J]. Special Casting & Nonferrous Alloys, 2011, 31(7): 608-611. DOI: 10.3870/tzzz.2011.07.006 | |
| Authors: | Gao Fan Wang Xinying Wang Lei Han Pengbiao Zhang Ji |
| Affiliation: | Gao Fan1,2,Wang Xinying2,Wang Lei1,Han Pengbiao3,Zhang Ji2 (1. The Key Laboratory of Anisotropy and Texture of Materials,Northeastern University,2.Institute of High Tempetature Materials,China Iron and Steel Institute Group Beijing,3.School of Material Science and Engineering,Hebei University of Science and Technology) |
| Abstract: | Numerical simulation of vacuum arc remelting process of TiAl alloy with 180 mm in diameter was carried out to understand effects of melting temperature, melting velocity and cooling rate on temperature gradient in metal pool, melting pool shape and mushy zone width. The results show that with increasing in melting temperature, depth of melting pool is increased, and its shape is transformed from bowl shape to V-shape. Meanwhile, melting temperature has the slight effects on temperature gradient in melting p... |
| Keywords: | TiAl Alloy Vacuum Arc Remelting Melting Pool Shape Mushy Zone |
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