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| 脉冲电场对Pb-Sn合金熔体过冷度变化的影响 | |
| 引用本文： | 张震斌,刘洋,王冰,何力佳,王建中,齐锦刚. 脉冲电场对Pb-Sn合金熔体过冷度变化的影响[J]. 热加工工艺, 2007, 36(9): 11-13 |
| 作者姓名： | 张震斌 刘洋 王冰 何力佳 王建中 齐锦刚 |
| 作者单位： | 1. 北京科技大学,材化学院,北京,100083;辽宁工学院,辽宁,锦州,121001 2. 辽宁工学院,辽宁,锦州,121001 3. 北京科技大学,材化学院,北京,100083 |
| 基金项目： | 国家自然科学基金;辽宁省高校重点实验室基金 |
| 摘 要： | 采用示差扫描量热分析（DSC）方法研究了脉冲电场作用下Pb-Sn合金熔体凝固过程中的过冷度变化，提出液态结构假设模型．即熔体内团簇尺度大小符合非连续类正态分布规律，从理论上分析了脉冲电场对熔体过冷度的影响．并应用Miedema模型分析了脉冲电场引起的熔体活度变化。 |
| 关 键 词： | 脉冲电场 过冷度 活度 团簇 |
| 文章编号： | 1001-3814（2007）01-0011-03 |
| 修稿时间： | 2006-11-21 |
Effect of Pulse Electric Field on Undercooling Degree of Molten Pb-Sn Alloy |
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| ZHANG Zhen-bin,LIU Yang,WANG Bing,HE Li-jia,WANG Jian-zhong,QI Jin-gang. Effect of Pulse Electric Field on Undercooling Degree of Molten Pb-Sn Alloy[J]. Hot Working Technology, 2007, 36(9): 11-13 | |
| Authors: | ZHANG Zhen-bin LIU Yang WANG Bing HE Li-jia WANG Jian-zhong QI Jin-gang |
| Abstract: | The undercooling degree of molten Pb-Sn alloy was studied under pulse electric field(PEF) by means of differential scanning calorimetry(DSC), and the model of assumption liquid structure was presented. The model pointed out that the cluster's dimension distribution in the molten accorded with the discontinuous normal distribution, and the reason of PEF effect on the undercooling degree of molten from theory. Applying the Miedema method, the activity's change of molten resulting from PEF was analyzed. |
| Keywords: | DSC |
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