Nanoparticle additions promote outstanding fracture toughness and fatigue strength in a cast Al-Cu alloy
文献类型：期刊论文
| 作者 | Yang, Chenglin3,4; Zhao, Qinglong1,2; Zhang, Zhenjun3; Li, Linlin3,5; Tian, Weisi1,2; Liu, Rui3; Zhang, Peng3; Xu, Yijiang6; Li, Yanjun6; Zhang, Zhefeng3,4 |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2020-01-15 |
| 卷号 | 186页码:8 |
| 关键词 | Cast Al alloys Fatigue strength Fracture toughness Nanoparticles |
| ISSN号 | 0264-1275 |
| DOI | 10.1016/j.matdes.2019.108221 |
| 通讯作者 | Zhang, Zhenjun(zjzhang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) ; Jiang, Qichuan(jqc@jlu.edu.cn) |
| 英文摘要 | Fatigue resistance and fracture toughness are essential to the reliability of castings during service. Reducing microporosity in cast alloys is a crucial issue for improving their fatigue strength and fracture toughness. Here we report a significant reduction inmicroporosity of a cast aluminum-copper alloy developed using in situ TiC nanoparticle additions coupled with a stir-casting method. The addition of TiC nanoparticles is found to improve the interdendritic feedability of liquidmetal and as a result reduces the volume fraction of microporosity by two orders of magnitude compared to a conventionally cast Al-Cu alloy. This method, which is mechanistically associated with a pore-dominated process, acts to significantly improve the fatigue strength, fracture toughness and uniform elongation of the cast Al-Cu alloy to values which, to the best of our knowledge, represent the highest ever achieved for a cast aluminum alloy. (c) 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 资助项目 | National Natural Science Foundation of China (NSFC)[51790483] ; National Natural Science Foundation of China (NSFC)[51790482] ; National Natural Science Foundation of China (NSFC)[51871223] ; National Natural Science Foundation of China (NSFC)[51330007] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000505221700067 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/136338]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Zhenjun; Zhang, Zhefeng; Jiang, Qichuan |
| 作者单位 | 1.Jilin Univ, Minist Educ, Key Lab Automobile Mat, 5988 Renmin St, Changchun 130025, Peoples R China 2.Jilin Univ, Sch Mat Sci & Engn, 5988 Renmin St, Changchun 130025, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China 4.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 5.Max Planck Str 1, D-40237 Dusseldorf, Germany 6.Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, N-7491 Trondheim, Norway 7.Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Yang, Chenglin,Zhao, Qinglong,Zhang, Zhenjun,et al. Nanoparticle additions promote outstanding fracture toughness and fatigue strength in a cast Al-Cu alloy[J]. MATERIALS & DESIGN,2020,186:8. |
| APA | Yang, Chenglin.,Zhao, Qinglong.,Zhang, Zhenjun.,Li, Linlin.,Tian, Weisi.,...&Ritchie, Robert O..(2020).Nanoparticle additions promote outstanding fracture toughness and fatigue strength in a cast Al-Cu alloy.MATERIALS & DESIGN,186,8. |
| MLA | Yang, Chenglin,et al."Nanoparticle additions promote outstanding fracture toughness and fatigue strength in a cast Al-Cu alloy".MATERIALS & DESIGN 186(2020):8. |
入库方式： OAI收割
来源：金属研究所
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