| Mechanisms for refining precipitation and improving strengthening of annealed Cu-2Ag alloy via La modification | |
| Hu, Peng-Hong1,2; Song, Hong-Wu1; Chen, Yan1; Chen, Fei-Peng3; Zhang, Shi-Hong1 | |
| 通讯作者 | Zhang, Shi-Hong(shzhang@imr.ac.cn) |
| 2021-11-25 | |
| 发表期刊 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| 卷号 | 883页码:13 |
| 摘要 | A new Cu-2Ag-0.14La alloy is developed to enhance the mechanical property and electrical conductivity with inducement of Ag-rich primary phases and finer nanoscale Ag precipitates. The microstructural evolution and mechanical properties of Cu-2Ag-0.14La and Cu-2Ag alloys obtained by drawing and annealing were then summarized and analyzed. The results indicate that both the yielding and ultimate tensile strengths of annealed Cu-2Ag-0.14La alloy were reinforced after La modification. The average grain sizes of two alloys increase during annealing, but the size ratio (RCu-2Ag-0.14La/RCu-2Ag) dramatically varies with rising the heat temperature, evolving from 70.48% at 400 degrees C to 43.78% at 650 degrees C. Meanwhile, it is found that the refined grains sizes in Cu-2Ag-0.14La alloy are closely related to the nano-scale precipitates (similar to 450 nm), which hinder the formation of subgrain boundaries at 400 degrees C, and impose a stronger pinning effect on boundary migration of recrystallized grains during annealing (>= 450 degrees C). Consequently, higher hardness and electrical conductivity are contributed by grain refinement and dispersion strengthening of the nanosized phases. (C) 2021 Elsevier B.V. All rights reserved. |
| 关键词 | Cu-Ag-La Recrystallization Precipitation strengthening Grain refinement Rare earth |
| 资助者 | Chinese Academy of Science and Technology Service Network Planning (China) ; Key Research and Development Program of Jiangxi Province (China) |
| DOI | 10.1016/j.jallcom.2021.160912 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Chinese Academy of Science and Technology Service Network Planning (China)[KFJ-STS-QYZD-145] ; Key Research and Development Program of Jiangxi Province (China)[20203ABC28W004] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000679184800003 |
| 出版者 | ELSEVIER SCIENCE SA |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/159627 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Zhang, Shi-Hong |
| 作者单位 | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Jiangxi Copper Technol Res Acad Co Ltd, Nanchang 330029, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Peng-Hong,Song, Hong-Wu,Chen, Yan,et al. Mechanisms for refining precipitation and improving strengthening of annealed Cu-2Ag alloy via La modification[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,883:13. |
| APA | Hu, Peng-Hong,Song, Hong-Wu,Chen, Yan,Chen, Fei-Peng,&Zhang, Shi-Hong.(2021).Mechanisms for refining precipitation and improving strengthening of annealed Cu-2Ag alloy via La modification.JOURNAL OF ALLOYS AND COMPOUNDS,883,13. |
| MLA | Hu, Peng-Hong,et al."Mechanisms for refining precipitation and improving strengthening of annealed Cu-2Ag alloy via La modification".JOURNAL OF ALLOYS AND COMPOUNDS 883(2021):13. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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