Effects of Rare Earth on the Refinement Efficiency of Aluminum Ingot with Fine Grain

Sun Haibin; Zuo Xiurong; Zhong Zhiguo; Cui Haichao; Fan Binbin; Li Guangqin

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Effects of Rare Earth on the Refinement Efficiency of Aluminum Ingot with Fine Grain
Issue 6, Pages: 381-383(2006)
Published： 2006 ，
DOI：

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[1]孙海斌,左秀荣,仲志国,崔海超,樊彬彬,李广钦.RE对细晶铝锭细化效果的影响[J].特种铸造及有色合金,2006(06):381-383+320.

Sun Haibin, Zuo Xiurong, Zhong Zhiguo, et al. Effects of Rare Earth on the Refinement Efficiency of Aluminum Ingot with Fine Grain. [J]. Special Casting & Nonferrous Alloys (6):381-383(2006)
[1]孙海斌,左秀荣,仲志国,崔海超,樊彬彬,李广钦.RE对细晶铝锭细化效果的影响[J].特种铸造及有色合金,2006(06):381-383+320. DOI：

Sun Haibin, Zuo Xiurong, Zhong Zhiguo, et al. Effects of Rare Earth on the Refinement Efficiency of Aluminum Ingot with Fine Grain. [J]. Special Casting & Nonferrous Alloys (6):381-383(2006) DOI：

摘要

利用光学显微镜、扫描电镜、能谱分析等方法研究分析了不同RE添加量对细晶铝锭细化效果的影响。试验结果表明

混合RE对细晶铝锭有明显的晶粒细化作用。随着RE含量的增加

晶粒平均直径减小。当RE的质量分数达到0.30%时

可得到最好的晶粒细化效果;当RE的质量分数超过0.30%后

细化效果开始下降。并分析了添加RE后细晶铝锭细化晶粒作用的机理。

Abstract

Effects of different rare earth contents on refinement efficiency of aluminum ingot with fine grain were investigated by optical microscope

SEM （scanning electron microscope）

EDAX. The results show that mistchmetal Re can effectively refine the grain size in aluminum ingot

where the average diameter of the grain is decreased with MM Re increase. The optimum grain refining efficiency can be observed with 0.30% MM Re additions

while with MM Re addition over 0.30%

refining efficiency can be fade. The refinement mechanism of the aluminum ingot with fine grain with MM RE addition is approached also.