| RE对Al-Si-Cu合金组织性能的影响 |
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| 引用本文： | 张亚琴,徐涛,陈善荣,李远发,樊晓泽,尹伟,宋卓能,黄春生,谭伟,唐定骧,李海斌.RE对Al-Si-Cu合金组织性能的影响[J].特种铸造及有色合金,2019(9):932-935. |
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| 作者姓名： | 张亚琴 徐涛 陈善荣 李远发 樊晓泽 尹伟 宋卓能 黄春生 谭伟 唐定骧 李海斌 |
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| 作者单位： | 太原工业学院;嘉瑞科技(惠州)有限公司;中国科学院长春应用化学研究所;太原科技大学 |
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| 摘 要： | 通过金相、扫描电镜分析、X射线衍射、流动性和拉伸测试,研究了RE(La、Ce混合稀土)的加入对Al-Si-Cu合金流动性、力学性能以及显微组织的影响。结果表明,适量RE(La、Ce混合稀土)的加入,可以提高Al-Si-Cu合金的流动性和力学性能,并细化其晶粒尺寸。当RE添加量约为0.4%时,对Al-Si-Cu合金改善效果最佳,合金流动性增加了约24%,铸态合金抗拉强度增加了9.4%,伸长率提高了35%,时效后合金抗拉强度增加了8.4%,伸长率提高了26%。
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| 关 键 词： | RE AL-SI-CU合金 流动性 力学性能 微观组织 |
Effect of RE on Microstructures and Properties of Al-Si-Cu Alloys |
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| Zhang Yaqin,Xu Tao,Chan Norman,Lee Yuenfat,Fan Xiaoze,Yin Wei,Sung Daniel,Huang Chunsheng,Tan Wei,Tang Dingxiang,Li Haibin.Effect of RE on Microstructures and Properties of Al-Si-Cu Alloys[J].Special Casting & Nonferrous Alloys,2019(9):932-935. |
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| Authors: | Zhang Yaqin Xu Tao Chan Norman Lee Yuenfat Fan Xiaoze Yin Wei Sung Daniel Huang Chunsheng Tan Wei Tang Dingxiang Li Haibin |
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| Affiliation: | (Taiyuan Institute of Technology;KaShui Technology (Huizhou) Co.,Ltd.;Changchun Institute of Applied Chemistry,Chinese Academy of Sciences;Taiyuan University of Science and Technology) |
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| Abstract: | The effects of RE on the fluidity,mechanical properties and microstructures of Al-Si-Cu alloys were investigated by metallographic,scanning electron microscopic analysis,X-ray diffraction,liquidity and tensile test.The results show that the fluidity and mechanical properties of Al-Si-Cu alloy can be enhanced and the grain size can be refined by adding proper amount of RE.Al-Si-Cu alloy has the desirable modification effect with the RE content of about 0.4%,where the fluidity and tensile strength,elongation of alloy are increased by about 24%,9.4% and 35%,respectively,after aging treatment,the tensile strength and elongation are increased by 8.4 and 26%,respectively. |
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| Keywords: | RE Al-Si-Cu Alloys Fluidity Mechanical Properties Microstructures |
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