铈对5005铝合金组织和性能的影响  

Effect of Cerium on Microstructure and Properties of 5005 Aluminum Alloy

作　　者：吴俊子[1,2] 胡文鑫[1,2] 贾锦玉 姜佳鑫 马少博[1,2] 王小青[1,2] 高斯娥 

机构地区：[1]白云鄂博稀土资源研究与综合利用国家重点实验室,内蒙古包头014030 [2]包头稀土研究院,内蒙古包头014030

出　　处：《稀土》2017年第4期81-87,共7页Chinese Rare Earths

基　　金：国家科技部"火炬计划"重大子项目(2014GH710302)

摘　　要：采用熔配法制备铝铈中间合金,考察合金成分和熔炼温度对铝铈中间合金的铈收率、合金均匀性和操作方便性的影响,并通过金相分析、扫描电镜分析、能谱分析和XRD分析观察其微观组织结构。另外,将铝铈中间合金加入5005铝合金中,考察铈加入量对5005铝合金微观组织结构和显微硬度的影响。结果表明,5005铝合金中添加铈具有良好的精炼和净化作用,可以改善析出相的形状,减少铁元素对铝合金组织的不良影响,从而降低铝合金的硬度和提高铝合金的挤压性能。A1-Ce master alloy was prepared by mix - melting method. Effects of compositions and melting temperature on cerium yield, uniformity and operating convenience of AI-Ce master alloy were studied. Microstructure of the alloy was analyzed with OM, SEM, EDS and XRD. Effect of Ce dosage on microstructure and hardness of 5005 aluminum alloy was studied. The results indicated that adding A1 - Ce master alloy had good refining and purification effect on the 5005 aluminum alloy. It could improve the shape of the separated phases and reduce the bad influence of iron on aluminum alloy organization, thus re- ducing the hardness of aluminum alloy to improve the extrusion performance.

关 键 词：铝铈中间合金 5005铝合金 组织 硬度 

分 类 号：TG146.21[一般工业技术—材料科学与工程]