| Effect of Gr Content and Hot Extrusion on Tensile Properties of （Nano-SiCp~-Gr）/Cu Composites Fabricated by Powder Metallurgy |
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| 引用本文： | 王桂松,罗阳,刘宝玺,尹成,耿林,黄玉东. Effect of Gr Content and Hot Extrusion on Tensile Properties of （Nano-SiCp~-Gr）/Cu Composites Fabricated by Powder Metallurgy[J]. 上海交通大学学报(英文版), 2012, 17(6): 658-662. DOI: 10.1007/s12204-012-1341-6 |
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| 作者姓名： | 王桂松 罗阳 刘宝玺 尹成 耿林 黄玉东 |
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| 作者单位： | [1]School of Materials Science and Engineering [2]School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China |
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| 基金项目： | Foundation item： the Postdoctoral Science Foundation of Heilongjiang （No. LRB09-603） |
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| 摘 要： |
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| 关 键 词： | 有色金属 金属材料 组织 性能 |
Effect of Gr content and hot extrusion on tensile properties of (Nano-SiCp+Gr)/Cu composites fabricated by powder metallurgy |
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| Gui-song Wang,Yang Luo,Bao-xi Liu,Cheng Yin,Lin Geng,Yu-dong Huang. Effect of Gr content and hot extrusion on tensile properties of (Nano-SiCp+Gr)/Cu composites fabricated by powder metallurgy[J]. Journal of Shanghai Jiaotong university, 2012, 17(6): 658-662. DOI: 10.1007/s12204-012-1341-6 |
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| Authors: | Gui-song Wang Yang Luo Bao-xi Liu Cheng Yin Lin Geng Yu-dong Huang |
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| Affiliation: | 1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
2. School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, 150001, China
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| Abstract: | Novel hybrid Cu matrix composites reinforced by graphite (Gr) particle with volume fraction of 5%?C15% and nano-SiC particle (nano-SiCp) with volume fraction of 3% have been prepared by powder metallurgy. The results show that Gr and nano-SiCp distribute uniformly in the Cu matrix. With increasing the volume fraction of Gr, the tensile strength of the composites decreases from 114 to 51MPa and the elastic modulus decreases from 75 to 60GPa. Compared with the sintered composites, the tensile properties including elastic modulus, tensile strength, yield strength and tensile elongation of the hot-extruded (nano-SiCp+Gr)/Cu composites are improved greatly due to higher relative density of the composites and more uniform distribution of Gr and nano-SiCp, in addition to finer grain size of the matrix as a result of dynamic recovery and recrystallization which occur during hot extrusion process. |
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| Keywords: | Cu composites microstructure properties graphite nano-SiC particle （nano-SiCp） |
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