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| Al-Si合金快速等轴凝固界面响应函数及组织选择 | |
| 引用本文： | 梁红玉,张勇,毛协民.Al-Si合金快速等轴凝固界面响应函数及组织选择[J].北京科技大学学报,2009,31(7). |
| 作者姓名： | 梁红玉 张勇 毛协民 |
| 作者单位： | 1. 北京科技大学新金属材料国家重点实验室,北京,100083;太原工业学院机械工程系,太原,030008 2. 北京科技大学新金属材料国家重点实验室,北京,100083 3. 上海大学材料科学与工程学院,上海,200072 |
| 基金项目： | 国家重点基础研究发展计划资助项目(No.2007CB613903) |
| 摘 要： | 在快速枝晶及共晶生长理论模型基础上,使用最高界面生长温度判据,建立了共晶合金快速等轴凝固界面响应函数(IRF)模型,分析了Al-Si合金系各种相及组织的竞争生长,绘制了非平衡组织选择图.计算结果与实验结果基本吻合,说明所建立的界面响应函数模型可以较好地预测Al-Si合金等轴凝固过程中的非平衡组织选择及形态演化. |
| 关 键 词： | 共晶合金 快速凝固 竞争生长 组织选择 |
Interface response function and microstructure selection for Al-Si alloys during rapid equiaxed solidification |
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| LIANG Hong-yu,ZHANG Yong,MAO Xie-min.Interface response function and microstructure selection for Al-Si alloys during rapid equiaxed solidification[J].Journal of University of Science and Technology Beijing,2009,31(7). | |
| Authors: | LIANG Hong-yu ZHANG Yong MAO Xie-min |
| Abstract: | On the basis of the rapid growth model for dendrite and eutectic and the criterion of the highest temperature for interface growth, an interface response function (IRF) of eutectic alloys during rapid equiaxed solidification was established. With the IRF, competitive growth between the primary and eutectic phases of Al-Si alloys was investigated and a microstructure selection map of Al-Si alloys during non-equilibrium solidification was constructed. The calculation results show a good agreement with those o... |
| Keywords: | eutectic alloys rapid solidification competitive growth microstructure selection |
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