Directional solidification velocity of undercooled Cu70Ni30 alloy melt

被引：0
|
作者：
Li, JF [1 ]
Zhang, XP
Zhou, YH
Yang, GC
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China
[2] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2001年 / 17卷 / 05期
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D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The directional dendrite growth velocity in the Cu70Ni30 alloy melt undercooled by 90 similar to 185 K was measured by high speed cinematography, and compared with the calculated free dendrite growth velocity. It was found that at lower undercoolings the interaction between the adjacent directionally growing dendrites is weak, and there is not marked difference between the velocity of the directionally growing dendrite and that of free dendrite. But with undercooling increasing, the interaction is enhanced due to the decrease of the primary arm spacing, which makes the velocity difference enlarges quickly.
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页码：572 / 574
页数：3
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