Improving ductility of bimodal carbon nanotube/2009Al composites by optimizing coarse grain microstructure via hot extrusion
文献类型：期刊论文
| 作者 | Ma, K.1,2; Liu, Z. Y.1; Liu, B. S.3; Xiao, B. L.1; Ma, Z. Y.1 |
| 刊名 | COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
 |
| 出版日期 | 2021 |
| 卷号 | 140页码:10 |
| ISSN号 | 1359-835X |
| 关键词 | Metal-matrix composites (MMCs) Carbon Nanotube Mechanical properties Extrusion |
| DOI | 10.1016/j.compositesa.2020.106198 |
| 通讯作者 | Liu, Z. Y.(zyliu@imr.ac.cn) |
| 英文摘要 | Bimodal carbon nanotube reinforced 2009Al (CNT/2009Al) composites were fabricated by powder metallurgy followed with extrusion. It indicated that the width, length and grain size in the coarse grain (CG) bands increased with the increase of the extrusion temperature, while no obvious grain size change was observed in the ultra-fine grain zones. The bimodal composite showed a double yield phenomenon. The first yield strength which resulted from the yielding of the CG, was similar for all composites extruded with different temperatures. The second yield strength decreased, but the ultimate tensile strength retained stable and the elongation increased with increasing the extrusion temperature. The composite extruded at 470 degrees C exhibited a 76% ductility increase with nearly no ultimate tensile strength loss as compared to one extruded at 370 degrees C. The better stress relaxation ability of large-sized grains in the CG bands was believed to be the reason for the good strength-ductility. |
| 资助项目 | Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC015] ; National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[51871214] ; National Natural Science Foundation of China[51871215] ; Youth Innovation Promotion Association CAS[2020197] ; China Scholarship Council |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000596646800001 |
| 资助机构 | Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; China Scholarship Council |
| 源URL | [http://ir.imr.ac.cn/handle/321006/158835]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Z. Y. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.AVIC Mfg Technol Inst, Beijing 100024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, K.,Liu, Z. Y.,Liu, B. S.,et al. Improving ductility of bimodal carbon nanotube/2009Al composites by optimizing coarse grain microstructure via hot extrusion[J]. COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING,2021,140:10. |
| APA | Ma, K.,Liu, Z. Y.,Liu, B. S.,Xiao, B. L.,&Ma, Z. Y..(2021).Improving ductility of bimodal carbon nanotube/2009Al composites by optimizing coarse grain microstructure via hot extrusion.COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING,140,10. |
| MLA | Ma, K.,et al."Improving ductility of bimodal carbon nanotube/2009Al composites by optimizing coarse grain microstructure via hot extrusion".COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING 140(2021):10. |
入库方式： OAI收割
来源：金属研究所
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