| 细晶金属铝的制备及力学性能 |
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| 引用本文： | 汤华国,赵伟,刘建伟,赵振业,马贤锋.细晶金属铝的制备及力学性能[J].应用化学,2015,32(9):0-0. |
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| 作者姓名： | 汤华国 赵伟 刘建伟 赵振业 马贤锋 |
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| 作者单位： | 中国科学院大学 北京 100049 |
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| 摘 要： | 从99.7%的金属铝粉出发,通过机械球磨制粉及快速压锻烧结技术制备得到了高强金属铝块,拉伸性能测试表明,金属铝的抗拉强度为537 MPa,屈服强度为495 MPa。 电子显微镜分析表明,金属铝具有0.5~5 μm的显微组织。 高强金属铝的主要强化机制是细晶强化。 较低的制备成本适合大规模工业化生产。
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| 关 键 词： | 超细金属铝 机械球磨 快速固结 细晶强化 |
| 收稿时间： | 2015-02-05 |
Synthesis and Mechanical Performances of Bulk Ultrafine Aluminum |
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| TANG Huaguo,ZHAO Wei,LIU Jianwei,ZHAO Zhenye,MA Xianfeng.Synthesis and Mechanical Performances of Bulk Ultrafine Aluminum[J].Chinese Journal of Applied Chemistry,2015,32(9):0-0. |
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| Authors: | TANG Huaguo ZHAO Wei LIU Jianwei ZHAO Zhenye MA Xianfeng |
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| Institution: | State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;University of Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | High strength bulk aluminum has been prepared by mechanical milling and press-forming processes. The bulk aluminum exhibits a high tensile strength of 537 MPa and a yield strength of 495 MPa. Characterization of microstructures reveals that the grain size of the bulk aluminum is between 0.5~5 μm. The high strength of pure aluminum is benefit from the fine grain size. The low fabrication cost with mechanical milling and press-forming is suitable for industrialized production. |
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| Keywords: | bulk ultrafine aluminum mechanical milling rapid solidification grain refinement |
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