| Ce对Al4.5Cu合金流动性和热裂倾向的影响 |
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| 引用本文： | 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. |
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| 作者姓名： | 谢世坤 易荣喜 黄 强 李强征 郭秀艳 高 芝 |
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| 作者单位： | 井冈山大学 工学院，江西吉安 343009;井冈山大学 工学院，江西吉安 343009;九江学院 机械与材料工程学院，江西九江 332005;井冈山大学 工学院，江西吉安 343009;井冈山大学 工学院，江西吉安 343009;井冈山大学 工学院，江西吉安 343009 |
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| 基金项目： | 江西省教育厅科技研究项目(GJJ11527) |
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| 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。
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| 关 键 词： | 金属材料 稀土Ce Al4.5Cu合金 体积收缩 热裂倾向 |
Effects of Rare Earth Ce on Flowability and Hot Tearing Trend of Al4.5Cu Alloy |
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| XIE Shi-kun,YI Rong-xi,HUANG Qiang,LI Qiang-zheng,GUO Xiu-yan and 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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| Authors: | XIE Shi-kun YI Rong-xi HUANG Qiang LI Qiang-zheng GUO Xiu-yan and GAO Zhi |
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| Affiliation: | School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China;School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China;School of Mechanical and Material Engineering, Jiujiang College, Jiujiang 332005, Jiangxi, China;School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China;School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China;School of Engineering, Jinggangshan University, Ji'an 343009, Jiangxi, China |
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| Abstract: | The effects of adding rare earth Cerium on alloy fluidity,solidification shrinkage,microstructure and hot tearing trend of Al4.5Cu alloy are investigated.The results show that by addition of proper rare earth cerium,a series of effects occur,including the reduction of alloy viscidity,the increase of liquidity,the decreasing shrinkage during the solidification of the metal liquid,the restrained trend of alloy dendrite,the improved microstructure of the casting alloy,the purified alloy,the enhanced thermal co... |
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| Keywords: | metal material rare earth cerium Al4 5Cu alloy volume shrinkage hot tearing trend |
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