Effect of Hot Pressing Temperature on Microstructure and Tensile Properties of SiC/Al-Zn-Mg-Cu Composites
文献类型：期刊论文
| 作者 | Ma Guonan1,2; Wang Dong1; Liu Zhenyu1; Bi Sheng1,2; Zan Yuning1,2; Xiao Bolv1; Ma Zongyi1 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2019-10-11 |
| 卷号 | 55期号:10页码:1319-1328 |
| 关键词 | powder metallurgy metal matrix composite interface precipitate |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2018.00523 |
| 通讯作者 | Wang Dong(dongwang@imr.ac.cn) |
| 英文摘要 | Particulate reinforced aluminum matrix composites have been widely used in industrial fields. In general, high strength aluminium alloys, such as 2024Al are employed to produce stronger composites. However, the composites with high strength Al-Zn-Mg-Cu alloys as the matrices are paid relative attentions. Therefore, the corresponding optimization for fabrication parameters has not been well understood. In the present work, SiC particles with volume fraction of 15% reinforced Al-7.5Zn-2.8Mg-1.7Cu (mass fraction, %) composites were fabricated using powder metallurgy (PM) technique at hot pressing temperatures of 500, 520, 540 and 560 degrees C. TEM, EPMA and tensile test were used to study the effect of hot pressing temperature on the microstructure and tensile properties of SiC/Al-Zn-Mg-Cu composites. The measured densities indicated that all the composites were completely condensed, no pores were observed. Undissolved phase containing Mg and Cu segregated in matrix of the composites hot pressed at 500 and 520 degrees C, resulting in instable tensile properties. With increasing hot pressing temperature to 540 degrees C Mg and Cu were uniformly distributed in the composites which exhibited the stable tensile proper- ties. With further increasing temperature to 560 degrees C, Mg segregated around SiC particles due to interface reaction. In this case, the content of MgZn2 phase was decreased, resulting in the reduction of tensile strength. HAADF-STEM and EDS analyses showed that the interface compounds were oxide of Mg and coarse MgZn2 phase. |
| 资助项目 | National Key Research and Development Program of China[2017YFB0703104] ; National Natural Science Foundation of China[51771193] ; National Natural Science Foundation of China[U1508216] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000487716200010 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/135551]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang Dong |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma Guonan,Wang Dong,Liu Zhenyu,et al. Effect of Hot Pressing Temperature on Microstructure and Tensile Properties of SiC/Al-Zn-Mg-Cu Composites[J]. ACTA METALLURGICA SINICA,2019,55(10):1319-1328. |
| APA | Ma Guonan.,Wang Dong.,Liu Zhenyu.,Bi Sheng.,Zan Yuning.,...&Ma Zongyi.(2019).Effect of Hot Pressing Temperature on Microstructure and Tensile Properties of SiC/Al-Zn-Mg-Cu Composites.ACTA METALLURGICA SINICA,55(10),1319-1328. |
| MLA | Ma Guonan,et al."Effect of Hot Pressing Temperature on Microstructure and Tensile Properties of SiC/Al-Zn-Mg-Cu Composites".ACTA METALLURGICA SINICA 55.10(2019):1319-1328. |
入库方式： OAI收割
来源：金属研究所
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