定向凝固制备镁单晶中杂质相的研究

李富斌; 冯中学; 曹洋; 史庆南

doi:10.15980/j.tzzz.2015.02.031

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定向凝固制备镁单晶中杂质相的研究
Research of Impurity Phase in Single Crystal Pure Magnesium Prepared by Directional Solidification
2015年35卷第2期页码：208-211
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.02.031

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[1]李富斌,冯中学,曹洋,史庆南.定向凝固制备镁单晶中杂质相的研究[J].特种铸造及有色合金,2015,35(02):208-211.

Li Fubin, Feng Zhongxue, Cao Yang, et al. Research of Impurity Phase in Single Crystal Pure Magnesium Prepared by Directional Solidification[J]. Special Casting & Nonferrous Alloys, 2015,35(2):208-211.
[1]李富斌,冯中学,曹洋,史庆南.定向凝固制备镁单晶中杂质相的研究[J].特种铸造及有色合金,2015,35(02):208-211. DOI： 10.15980/j.tzzz.2015.02.031.

Li Fubin, Feng Zhongxue, Cao Yang, et al. Research of Impurity Phase in Single Crystal Pure Magnesium Prepared by Directional Solidification[J]. Special Casting & Nonferrous Alloys, 2015,35(2):208-211. DOI： 10.15980/j.tzzz.2015.02.031.

摘要

采用自行设计的定向凝固装置制备了镁单晶

通过扫描电镜观察、能谱分析和软件统计分析

研究定向凝固工艺制备的镁单晶中杂质相的特性。结果表明

杂质相中含有多种元素

其主要成分是MgO

有球形、团簇形和块状。试样中MgO杂质相从下至上数量逐渐减少

尺寸逐渐增大

且镁组织中MgO平均直径在1μm以下。

Abstract

We have developed a directional solidification furnace to fabricate single crystal pure magnesium

and the characteristics of impurity phase in directional solidification single crystal pure magnesium was analyzed by SEM

EDS and software analysis.The results show that the impurity phase contains a variety of elements

and the magnesium oxide with the spherical

clusters or block is dominant in the impurity phase.Impurity phase of magnesium oxide in the sample is decreased in numbers and increased in size from the bottom to the upper.In addition

the major average diameter of magnesium oxide is lower than 1μm in pure magnesium structure.