Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys
文献类型：期刊论文
| 作者 | Yang, Sheng-Nan1,2; Xie, Hui1; Guan, Huai3; Jin, Hai -Jun1 |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 269页码:11 |
| 关键词 | Spinodoid alloys Dealloying Electrodeposition Semi-coherent interfaces Thermal stability Strength Hardness |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2024.119827 |
| 通讯作者 | Jin, Hai -Jun(hjjin@imr.ac.cn) |
| 英文摘要 | The strengthening effect of interface in materials is usually studied by monitoring the change of strength in response to varying structure sizes, such as the varying grain or phase sizes. In this study, we demonstrate that the strength of a nanostructured material can be recoverably tuned by modifying interfacial structure without changing structure size. Specifically, we studied the Cu/Ag spinodoid alloys fabricated by dealloying and electrochemical deposition, which exhibit a cube -on -cube orientation relationship between two interpenetrating nanophases. This material remains stable against coarsening even at temperatures near the eutectic melting point, due to the presence of low -energy semi -coherent interfaces and the lack of defects such as grain boundaries. Using cyclic thermal annealing, we are able to alter the solid solubility of both nanophases and, consequently, the lattice mismatch between them, resulting in a recoverable tuning of hardness and strength. The amplitude of hardness modulation decreases with increasing feature size (A), and changes sign when A exceeds similar to 500 nm. This is attributed to a competition between two strengthening mechanisms: the interfaceinduced strengthening that is more prominent at a lower A, and the solid solution hardening that is largely A -insensitive. The finding indicates that interface hardening prevails over solution hardening when A is below similar to 500 nm. Current study paves the way for the development of strong and stable nanostructured materials whose properties can be optimized by independently tailoring feature sizes and interfacial structures. |
| 资助项目 | National Natural Science Foun-dation of China[51971218] ; National Natural Science Foun-dation of China[52020105011] ; Shenyang National Laboratory for Materials Science |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001205865800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foun-dation of China ; Shenyang National Laboratory for Materials Science |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jin, Hai -Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Liaoning Acad Mat, Inst Mat Plainificat, Shenyang 110004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Sheng-Nan,Xie, Hui,Guan, Huai,et al. Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys[J]. ACTA MATERIALIA,2024,269:11. |
| APA | Yang, Sheng-Nan,Xie, Hui,Guan, Huai,&Jin, Hai -Jun.(2024).Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys.ACTA MATERIALIA,269,11. |
| MLA | Yang, Sheng-Nan,et al."Recoverable tuning of lattice mismatch and strength in ultrastable-nanostructured Cu/Ag spinodoid alloys".ACTA MATERIALIA 269(2024):11. |
入库方式： OAI收割
来源：金属研究所
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