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