| Influences of Preparation Conditions and Melt Treatment Procedures on Melt Treatment Performance of Al-5Ti-B and Al-10Sr Master Alloys |
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| 作者姓名： | Pengfa FENG Jinglin TANG Xinyan JIN Shuangshou LI Daben ZENG |
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| 作者单位： | Depaxtment of Mechanical Engineering, Tsinghua University, Beijing 100084, China |
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| 基金项目： | This work is supported by the National Space Support Technology Foundation of China under grant No.2002-HT-QHDX. |
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| 摘 要： | The influences of preparation conditions of Al-5Ti-B （as-cast and hot-rolled） and Al-10Sr （as-cast and hotextruded） and melt treatment procedures on the grain refinement and modification performance of A356 alloy are experimentally studied. For the two master alloys, the 50% reduction is sufficient to meet the demands of the efficient grain refinement and modification of A356 alloy. When Al-STi-B is introduced into the melt prior to degassing, the grain refinement efficiency of Al-5Ti-B will be greatly increased due to the better dispersity of TiB2 particles. Al-5Ti-B master alloy is less prone to affect the modification effect of Al-10Sr when they are used together.
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| 关 键 词： | 铝钛硼合金 铝锶合金 晶粒细化 热变形 A356合金 |
| 收稿时间： | 2004-11-22 |
| 修稿时间： | 2005-05-17 |
Influences of Preparation Conditions and Melt Treatment Procedureson Melt Treatment Performance of Al-5Ti-Band Al-10Sr Master Alloys |
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| Pengfa FENG Jinglin TANG Xinyan JIN Shuangshou LI Daben ZENG.Influences of Preparation Conditions and Melt Treatment Procedures on Melt Treatment Performance of Al-5Ti-B and Al-10Sr Master Alloys[J].Journal of Materials Science & Technology,2006,22(1):50-54. |
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| Authors: | Pengfa FENG Jinglin TANG Xinyan JIN Shuangshou LI Daben ZENG |
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| Affiliation: | Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | The influences of preparation conditions of Al-5Ti-B (as-cast and hot-rolled) and Al-10Sr (as-cast and hotextruded) and melt treatment procedures on the grain refinement and modification performance of A356 alloy are experimentally studied. For the two master alloys, the 50% reduction is sufficient to meet the demands of the efficient grain refinement and modification of A356 alloy. When Al-5Ti-B is introduced into the melt prior to degassing, the grain refinement efficiency of Al-5Ti-B will be greatly increased due to the better dispersity of TiB2 particles. Al-5Ti-B master alloy is less prone to affect the modification effect of Al-10Sr when they are used together. |
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| Keywords: | Grain refinement Modification Hot deformation Master alloys A356 alloy |
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