La变质的不均匀性研究

坚增运; 商宝禄; 鲁德洋

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La变质的不均匀性研究
Study on the Non-harmonious Character of Lanthanum Modification
1990年第5期页码：3-6
纸质出版日期： 1990 ，
DOI：

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[1]坚增运,商宝禄,鲁德洋.La变质的不均匀性研究[J].特种铸造及有色合金,1990(05):3-6+10.

Jian Zenyun. Study on the Non-harmonious Character of Lanthanum Modification[J]. Special Casting & Nonferrous Alloys, 1990,(5):3-6.
[1]坚增运,商宝禄,鲁德洋.La变质的不均匀性研究[J].特种铸造及有色合金,1990(05):3-6+10. DOI：

Jian Zenyun. Study on the Non-harmonious Character of Lanthanum Modification[J]. Special Casting & Nonferrous Alloys, 1990,(5):3-6. DOI：

摘要

本文应用光学显微镜、读数显微镜、电子探针等方法

对稀土金属La变质Al-Si共晶合金时

圆柱形试样组织的不均匀性进行了系统的研究

实验结果发现:La变质的不均匀性是由La的平衡分配系数及冷却速度决定的。

Abstract

The non-harmonious character of structure of La modification in Al-Si eutectic alloys has been systematically studied in this paper by optical and reading microscopes

SEM

electron microproble

etc. in cylinder samples. It is found that La modification is of non-harmonious character. This character depends on the freezing rate and equilibrium distribution coefficient of lanthanum.