| 深度过冷Sn-Bi合金的凝固行为 |
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| 引用本文： | 郭俊清,李庆春. 深度过冷Sn-Bi合金的凝固行为[J]. 材料科学与工艺, 1992, 0(2) |
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| 作者姓名： | 郭俊清 李庆春 |
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| 作者单位： | 哈尔滨工业大学，哈尔滨工业大学 |
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| 摘 要： | 本文用乳化法得到了深度过冷 Sn-Bi 合金液滴。用差热分析法、X 光衍射法和 SEM 分析了过冷度、成份、相组成和凝固组织之间的关系。结果表明,过冷度达到0.253Tm;深度过冷Sn-Bi合金以非平衡方式凝固。既可以无溶质分配方式,也可以凝固成共晶组织或初生相加共晶组织。
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| 关 键 词： | 深度过冷 Sn-Bi 合金 凝固 |
Solidification Behavior of Deeply Undercooled Sn-Bi Alloys |
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| Guo Junqing Li Qingchun. Solidification Behavior of Deeply Undercooled Sn-Bi Alloys[J]. Materials Science and Technology, 1992, 0(2) |
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| Authors: | Guo Junqing Li Qingchun |
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| Affiliation: | Harbin Institute of Technology |
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| Abstract: | Deeply undercooled liquid drops of Sn-Bi alloys were obtained by emulsification.Relationship between undercooling,compotition of alloys, phases and solidification structures was investigated by DTA,X-ray diffraction and SEM.The results showed that under the undercooling cond- ition of 0.253Tm,the Sn-Bi alloys solidified in a nonequilibrium way. The alloys could solidify either without redistribution of solute,or form eutectic structure or primary phase plus eutectic structure. |
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| Keywords: | deeply undercooling Sn-Bi alloys solidification |
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