Directional solidification of undercooled melt

被引：0
|
作者：
李金富
吕衣礼
杨根仓
周尧和
机构：
[1] China
[2] Northwestern Polytechnical University
[3] State Key Laboratory of Solidification Processing
[4] Xi’an 710072
来源：
Progress in Natural Science | 1997年 / 06期
基金：
中国国家自然科学基金;
关键词：
high undercooling; single phase alloy; directional solidification;
D O I：
暂无
中图分类号：
TG111 [金属物理学];
学科分类号：
0702 ; 070205 ;
摘要：
The directional solidification of highly undercooled single phase alloy is put forward. In contrast with the conventional directional solidification, it occurs under a negative temperature gradient at the solid/liquid interface. The essential condition for this process is that the thermal diffusion in liquid plays a dominant role in the crystal growth. An experiment on Cu-30at. %Ni alloy was conducted, and a directional solidification structure consisting of a single crystal was obtained in the undercooling range of 105-155 K.
引用
收藏
页码：98 / 103
页数：6
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