摘要
研究了稀土元素对工业纯铝晶粒度的影响．稀土元素采用中间合金形式加入，利用金属学和合金凝固理论，并在ＭＡＧＳＣＡＮＺＡ型图像分析仪上测其晶粒度，结果证明：稀土 、镧和混合稀土都能减小工业纯铝的晶粒尺寸，且这种作用在含稀土质量分数小于０．６％时明显，超过此范围，则趋于平缓．
The effects of rare earth Ce, La and M-Re on grain size of industrial pure aluminum were mainly investigated in this work. Rare earth elements were added as middle - alloy. By means of metallurgy and solidification theory, grain size of samples was measured by MAGISCANZA image analysis. The results showed that rare earth Ce, La and M-Re were able to reduce grain size of industrial pure aluminum. The effect was obvious when the adding quantity of rare earth was less than 0.6%. The effect of rare earth on grain size would be slight when adding quantity of rare earth was more than 0.6%.
出处
《哈尔滨理工大学学报》
CAS
2001年第6期63-66,共4页
Journal of Harbin University of Science and Technology
