| 纳米SiC颗粒增强AZ91D复合材料的制备及性能 |
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| 引用本文： | 刘世英,李文珍,贾秀颖,高飞鹏,张琼元. 纳米SiC颗粒增强AZ91D复合材料的制备及性能[J]. 稀有金属材料与工程, 2010, 39(1): 134-138 |
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| 作者姓名： | 刘世英 李文珍 贾秀颖 高飞鹏 张琼元 |
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| 作者单位： | 清华大学,北京,100084 |
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| 摘 要： | 利用高能超声辅助法制备纳米SiC颗粒(n-SiCp)增强AZ91D镁基复合材料(n-SiCp/AZ91D),并对其显微结构和室温力学性能进行测试分析。结果表明:纳米SiC颗粒的加入能够起到细化晶粒的作用,纳米颗粒在基体中的分布比较均匀,超声波辅助技术能够有效地分散纳米颗粒,在重力铸造下所制备的复合材料的抗拉强度、屈服强度和硬度均高于基体,尤其是屈服强度较基体提高了57%。
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| 关 键 词： | 镁基复合材料 纳米SiC颗粒 高能超声法 显微结构 力学性能 |
| 收稿时间： | 2009-01-10 |
Preparation and Properties of Nano-Sized SiC Particles Reinforced AZ91D Magnesium Matrix Composites |
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| Liu Shiying,Li Wenzhen,Jia Xiuying,Gao Feipeng and Zhang Qiongyuan. Preparation and Properties of Nano-Sized SiC Particles Reinforced AZ91D Magnesium Matrix Composites[J]. Rare Metal Materials and Engineering, 2010, 39(1): 134-138 |
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| Authors: | Liu Shiying Li Wenzhen Jia Xiuying Gao Feipeng Zhang Qiongyuan |
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| Affiliation: | Tsinghua University;Beijing 100084;China |
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| Abstract: | Magnesium matrix composites reinforced with nano-sized SiC particles (n-SiCp/AZ91D) were fabricated by high intensity ultrasonic assisted casting.The microstructure of the nanocomposites was investigated by optical microscopy,scanning electronic microscopy (SEM) methods and room-temperature mechanical properties were measured using a universal electronic material tester.The results showed that n-SiCp addition can refine the grains,and the distribution of n-SiCp in magnesium alloy melts is significantly impr... |
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| Keywords: | magnesium matrix composites nano-sized SiC particles high intensity ultrasonic processing microstructure mechanical properties |
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