Ce对Al4.5Cu合金流动性和热裂倾向的影响

谢世坤; 易荣喜; 黄  强; 李强征; 郭秀艳; 高  芝

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DOI:DOI：10.3969/j.issn.1007-7545.2011.06.008

有色金属（冶炼部分）:2011,(6):33-36

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Ce对Al4.5Cu合金流动性和热裂倾向的影响

谢世坤¹, 易荣喜¹, 黄强², 李强征¹, 郭秀艳¹, 高芝¹

(1.井冈山大学工学院，江西吉安 343009;2.九江学院机械与材料工程学院，江西九江 332005)

Effects of Rare Earth Ce on Flowability and Hot Tearing Trend of Al4.5Cu Alloy

XIE Shi-kun¹, YI Rong-xi¹, HUANG Qiang², LI Qiang-zheng¹, GUO Xiu-yan¹, GAO Zhi¹

(1.School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China;2.School of Mechanical and Material Engineering, Jiujiang College, Jiujiang 332005, Jiangxi, China)

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中文摘要: 研究加入稀土Ce对Al4.5Cu合金流动性、凝固收缩、微观组织和热裂倾向的影响。结果表明，适量稀土Ce的加入，降低金属液的黏度，提高合金流动性，减少金属在凝固过程中的收缩，抑制合金枝晶化的趋势，改善铸造合金的微观组织，净化合金，提高合金的导热率，明显地减少合金的热裂倾向。稀土Ce加入量为4%时，Al4.5Cu合金流动性最佳、凝固收缩量最小、合金晶粒组织细化圆整，同时其热裂倾向最小。

中文关键词: 金属材料稀土Ce Al4.5Cu合金体积收缩热裂倾向

Abstract:The effects of adding rare earth Cerium on alloy fluidity、Solidification shrinkage、 microstructure and hot tearing trend of Al4.5Cu alloy are researched in this paper. Experiments show that to add proper rare earth Cerium into the alloy will reduce its viscidity, then increases its liquidity; will cut down the shrinkage during the solidification of the metal liquid; will restrain the trend to be dendritic of the alloy, and improves the microstructure of the casting alloy; will purify the alloy, enhances the thermal conductivity, and decrease the hot tearing trend of the Al4.5Cu alloy remarkably. When the quantity of rare earth Cerium added to Al4.5Cu Alloy is about 4 wt%, the fluidity of Al4.5Cu alloy will be the best, and its volume shrinkage is the least. At the same time, its grain of the alloy is refined, round and .the alloy has the lowest hot tearing trend.

keywords: metal material semi-solid processing(SSP) rare earth Cerium Al4.5Cu alloy volume shrinkage hot tearing trend

文章编号： 中图分类号： 文献标志码：

基金项目:江西省教育厅科技研究项目(GJJ11527)

作者	单位
谢世坤	井冈山大学工学院,江西吉安 343009
易荣喜	井冈山大学工学院,江西吉安 343009
黄强	九江学院机械与材料工程学院,江西九江 332005
李强征	井冈山大学工学院,江西吉安 343009
郭秀艳	井冈山大学工学院,江西吉安 343009
高芝	井冈山大学工学院,江西吉安 343009

Author Name	Affiliation
XIE Shi-kun	School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China
YI Rong-xi	School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China
HUANG Qiang	School of Mechanical and Material Engineering, Jiujiang College, Jiujiang 332005, Jiangxi, China
LI Qiang-zheng	School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China
GUO Xiu-yan	School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China
GAO Zhi	School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China

引用文本：
谢世坤,易荣喜,黄强,李强征,郭秀艳,高芝.Ce对Al4.5Cu合金流动性和热裂倾向的影响[J].有色金属（冶炼部分）,2011(6):33-36.
XIE Shi-kun,YI Rong-xi,HUANG Qiang,LI Qiang-zheng,GUO Xiu-yan,GAO Zhi.Effects of Rare Earth Ce on Flowability and Hot Tearing Trend of Al4.5Cu Alloy[J].Nonferrous Metals (Extractive Metallurgy),2011(6):33-36.

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