Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites
文献类型：期刊论文
| 作者 | Ma, K.; Li, X. N.; Zhang, J. F.; Liu, Z. Y.; Xiao, B. L.; Ma, Z. Y. |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 192页码:9 |
| ISSN号 | 1044-5803 |
| 关键词 | Carbon nanotube Metal matrix composite Bimodal structure Fatigue |
| DOI | 10.1016/j.matchar.2022.112193 |
| 通讯作者 | Liu, Z. Y.(zyliu@imr.ac.cn) ; Xiao, B. L.(blxiao@imr.ac.cn) |
| 英文摘要 | By introducing the ductile-zones (DZs) without carbon nanotubes (CNTs) into the brittle-zones (BZs) containing CNTs, constructing the bimodal structure, can effectively improve the toughness of CNT reinforced Al (CNT/Al) composites. However, to be applied in the field of aerospace, CNT/Al composites will be required to have high toughness, as well as high fatigue strength. At the present study, the fatigue behaviors of uniform and bimodal CNT/Al composites under the tension-compression state with the stress ratio of -1 were investigated. It was found that CNT rich zones could keep grains stable after the fatigue loading. However, for the bimodal CNT/Al composites, the preferential local deformation occurred in the DZs, which resulted in much lower fatigue strength as compared to the uniform composite. By reducing the grain size of DZs to ultra-fine grain (UFG) level, the large number of grain boundaries within the DZs hindered the directional movement of slip bands, which significantly enhanced the fatigue strength and achieved a higher toughness of bimodal CNT/Al composites. This discovery provides a new strategy for the preparation of high performance CNT/Al composites, and the bimodal CNT/Al composite with UFG DZs is expected to be applied in the aerospace field. |
| 资助项目 | National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[52192595] ; National Natural Science Foundation of China[51871215] ; National Natural Science Foundation of China[51871214] ; Liao Ning Revitalization Talents Program[XLYC1902058] ; Shenyang Young and Middle-Aged Scientific and Technological Innovation Talents Support Plan[RC210490] ; Youth Innovation Promotion Association CAS[2020197] ; China Scholarship Council |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE INC |
| WOS记录号 | WOS:000863167000004 |
| 资助机构 | National Natural Science Foundation of China ; Liao Ning Revitalization Talents Program ; Shenyang Young and Middle-Aged Scientific and Technological Innovation Talents Support Plan ; Youth Innovation Promotion Association CAS ; China Scholarship Council |
| 源URL | [http://ir.imr.ac.cn/handle/321006/175928]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Z. Y.; Xiao, B. L. |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, K.,Li, X. N.,Zhang, J. F.,et al. Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites[J]. MATERIALS CHARACTERIZATION,2022,192:9. |
| APA | Ma, K.,Li, X. N.,Zhang, J. F.,Liu, Z. Y.,Xiao, B. L.,&Ma, Z. Y..(2022).Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites.MATERIALS CHARACTERIZATION,192,9. |
| MLA | Ma, K.,et al."Tension-compression fatigue behaviors of uniform and bimodal carbon nanotube/Al-Cu-Mg composites".MATERIALS CHARACTERIZATION 192(2022):9. |
入库方式： OAI收割
来源：金属研究所
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