稀土元素对工业纯铝晶粒度的影响  

Effects of Rare Earth Elements on Grain Size of Industrial Pure Alunimum

作　　者：康福伟[1] 王丽萍[1] 张显友[1] 张敏[1] 刘东[2] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040 [2]鲍店煤矿选煤厂,山东邹城273500

出　　处：《哈尔滨理工大学学报》2001年第6期63-66,共4页Journal of Harbin University of Science and Technology

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%.

关 键 词：稀土元素 工业纯铝 晶粒度 导电性 稀土铝导线 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TM214[金属学及工艺—金属材料]