| A1-4.5Cu合金半固态坯料制备研究 |
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| 引用本文： | 谢世坤,易荣喜,邓晓春,艾永平. A1-4.5Cu合金半固态坯料制备研究[J]. 热加工工艺, 2010, 39(5) |
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| 作者姓名： | 谢世坤 易荣喜 邓晓春 艾永平 |
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| 作者单位： | 井冈山大学工学院,江西古安,343009 |
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| 基金项目： | 江西省教育厅科技研究项目 |
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| 摘 要： | 研究了稀土Ce对铝铜合金微观组织的影响以及A14.5Cu合金半固态坯料的制备工艺.实验表明:在Al-4.5Cu合金中加入稀土Ce,细化了合金的微观组织,固液两相区间变窄,改善了合金的凝固性能.浇注温度和浇注方式对合金坯料制备也有明显的影响.在700℃采用斜坡振动铜模水冷浇注可制备性能优良的稀土Al-4.5Cu半固态坯料,其组织为细小均匀的等轴球状晶,且制备工艺简单.
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| 关 键 词： | Al-4.5Cu合金 稀土Ce 斜坡振动 微观组织 |
Preparation Process for Semi-solid Slurry of Al-4.5Cu Alloy |
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| XIE Shikun,YI Rongxi,DENG Xiaochun,AI Yongping. Preparation Process for Semi-solid Slurry of Al-4.5Cu Alloy[J]. Hot Working Technology, 2010, 39(5) |
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| Authors: | XIE Shikun YI Rongxi DENG Xiaochun AI Yongping |
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| Abstract: | The influence of rare-earth Ce on Al-Cu alloy microstructure was discussed,and the preparation process for semi-solid slurry of A1-4.5Cu alloy was researched.The experiments show that adding Ce element into Al-4.5Cu alloy refines the grain of the alloy,the solid-liquid two-phase range gets narrow,and the alloy's solidification capability improves.Pouring temperature and casting methods also play a significant role in the preparation process of Al-4.5Cu.Slope vibration of water-cooled copper mold casting at 700℃ can be used to prepare excellent RE Al-4.5Cu semi-solid slurry,its mierosIntcture is uniform,small equiaxial crystal,and its process is simple. |
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| Keywords: | Al-4.5Cu alloy rare-earth Ce slope vibration microstructure |
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