Influence of rare earths on the directional solidification microstructure of tin-lead eutectic alloy

被引：0
|
作者：
Zhu, Y [1 ]
Fang, HY [1 ]
Qian, YY [1 ]
机构：
[1] HARBIN INST TECHNOL,HARBIN 150001,PEOPLES R CHINA
来源：
JOURNAL OF RARE EARTHS | 1997年 / 15卷 / 03期
关键词：
rare earths; tin-lead alloy; directional solidification;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The research on the influence of RE on the directional solidified microstructure of tin-lead alloy reveals that the addition of RE can cause chopping and irregular lamellar and smaller lamellar spacing. When RE content increases, the microstructure changes to peritectic structure. Moreover, the eutectic point of Sn-Pb alloy deviates because the affinity of RE for Sn, which results in the existence of primary Pb-rich phases contained hypoeutectic grown layers. Sn-RE intermetallic compound has no effect on the solidification of Sn-Pb alloy.
引用
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页码：190 / 194
页数：5
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