| AlTiC中间合金细化铝时结晶核心的研究 |
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| 引用本文： | 马洪涛,李建国,张柏清,方鸿生. AlTiC中间合金细化铝时结晶核心的研究[J]. 金属热处理, 1999, 0(10): 1-3 |
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| 作者姓名： | 马洪涛 李建国 张柏清 方鸿生 |
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| 作者单位： | 清华大学材料科学与工程系,北京,100084 |
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| 摘 要： | 采用ＳＥＭ 研究ＡｌＴｉＣ中间合金细化高纯铝时产生的异质晶核核心，并对细化机理进行了讨论。结果表明，晶粒核心为富Ｔｉ、Ｃ的颗粒团，在颗粒表面有许多突起的小颗粒。在以颗粒团为中心形成的晕圈和枝晶中存在Ｔｉ 的成分梯度。
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| 关 键 词： | Al-Ti-C中间合金 异质核心 细化机理 |
Research on Crystal Nuclei of Aluminum Alloy Refined by Al-Ti-C Master Alloy |
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| Ma Hongtao,Li Jianguo,Zhang Baiqing,Fang Hongsheng. Research on Crystal Nuclei of Aluminum Alloy Refined by Al-Ti-C Master Alloy[J]. Heat Treatment of Metals, 1999, 0(10): 1-3 |
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| Authors: | Ma Hongtao Li Jianguo Zhang Baiqing Fang Hongsheng |
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| Abstract: | The crystal nuclei of high purify aluminum refined by Al Ti C master alloy were studied by SEM and the mechanisms of heterogeneous nucleation were discussed.It was found that the cluster of particles enriched in Ti and C was in the center of grain,and a certain number of small protrusions were found on the surface of the particles.It was also found that the cluster was surrounded by the dendrites or circles with the composition gradient of Ti element. |
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| Keywords: | Al Ti C master alloy heterogeneous nuclei refining mechanism |
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