Effect of extrusion temperature on microstructure and properties of an ultrafine-grained Cu matrix nanocomposite fabricated by powder compact extrusion
文献类型：期刊论文
| 作者 | Zhou, Dengshan1,2,3; Geng, Hongwei1,2; Zeng, Wei4; Sha, Gang5; Kong, Charlie6; Quadir, Zakaria7; Munroe, Paul8; Torrens, Rob3; Trimby, Patrick9; Zhang, Deliang1,2 |
| 刊名 | Journal of Materials Science
 |
| 出版日期 | 2018 |
| 卷号 | 53期号:7页码:5389-5401 |
| ISSN号 | 00222461 |
| DOI | 10.1007/s10853-017-1952-2 |
| 英文摘要 | Ultrafine-grained Cu–5 vol%Al2O3nanocomposite rods were fabricated by a combination of high-energy mechanical milling of Cu and Al2O3powders and powder compact extrusion at 300, 500, 700 and 900 °C. The extruded rods were investigated to evaluate microstructures, mechanical properties, fracture behavior and electrical resistivity. It was found that the extrusion temperature has a pronounced effect on Cu grain growth, Al2O3particle coarsening and particle distribution. High-temperature extrusion leads to directional coarsening of certain grains. As such, a heterogeneous matrix structure of large elongated and equiaxed grains is created, and this unique matrix structure brings beneficial effects in tensile ductility and electrical resistivity. While Al2O3dispersions in the matrix improve the overall performance of the nanocomposite, an incorrect selection of the extrusion temperature may have detrimental effects on yield strength and resistivity. Tensile fractography investigation shows that the presence of Al2O3results in failures along grain boundaries. This study also provides a framework for modeling the mechanical and electrical properties of such complex matrix structures. Modeling tools/formulae can be used to predict mechanical/electrical properties via microscopic characteristics and hence can also be used to understand the effect of processing variables. © 2017, Springer Science+Business Media, LLC, part of Springer Nature. |
| 出版者 | Springer New York LLC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25320]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang; 110819, China; 2.Institute of Ceramics and Powder Metallurgy, School of Materials Science and Engineering, Northeastern University, Shenyang; 110819, China; 3.Waikato Centre for Advanced Materials, School of Engineering, The University of Waikato, Private Bag 3105, Hamilton, New Zealand; 4.State Key Laboratory for Metal Matrix Materials, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai; 200240, China; 5.Herbert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing; Jiangsu; 210094, China; 6.Electron Microscope Unit, The University of New South Wales, Sydney; 2052, Australia; 7.Microscopy and Microanalysis Facility, John de Laeter Centre, Curtin University, Bentley; 6845, Australia; 8.School of Materials Science and Engineering, The University of New South Wales, Sydney; 2052, Australia; 9.Australian Centre for Microscopy and Microanalysis, The University of Sydney, Sydney; NSW; 2006, Australia |
| 推荐引用方式 GB/T 7714 | Zhou, Dengshan,Geng, Hongwei,Zeng, Wei,et al. Effect of extrusion temperature on microstructure and properties of an ultrafine-grained Cu matrix nanocomposite fabricated by powder compact extrusion[J]. Journal of Materials Science,2018,53(7):5389-5401. |
| APA | Zhou, Dengshan.,Geng, Hongwei.,Zeng, Wei.,Sha, Gang.,Kong, Charlie.,...&Zhang, Deliang.(2018).Effect of extrusion temperature on microstructure and properties of an ultrafine-grained Cu matrix nanocomposite fabricated by powder compact extrusion.Journal of Materials Science,53(7),5389-5401. |
| MLA | Zhou, Dengshan,et al."Effect of extrusion temperature on microstructure and properties of an ultrafine-grained Cu matrix nanocomposite fabricated by powder compact extrusion".Journal of Materials Science 53.7(2018):5389-5401. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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