A novel Na2MoO4@CNT/Al-Zn-Mg-Cu composite with superior corrosion resistance and good mechanical properties: Effect of heat treatment
文献类型：期刊论文
| 作者 | Yang, Jie1,2; Li, Qing1,2; Xiao, Zhixiang1,2; Wang, Zhengbin1; Liu, Zhenyu3; Xiao, Bolv3; Ma, Zongyi3; Zheng, Yugui1 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 35页码:2826-2839 |
| 关键词 | Na2MoO4@CNT/7075 composite Heat treatment Corrosion resistance Mechanical properties Carbon nanotubes |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2025.01.238 |
| 通讯作者 | Wang, Zhengbin(zbwang12s@imr.ac.cn) ; Liu, Zhenyu(zyliu@imr.ac.cn) ; Zheng, Yugui(ygzheng@imr.ac.cn) |
| 英文摘要 | The development of Al-Zn-Mg-Cu alloys and their composites with good corrosion resistance and mechanical properties is highly demanding yet remains challenging. In this study, a new strategy of incorporating Na2MoO4 precipitants into bulk Al-Zn-Mg-Cu alloys using the inner cavity of opened carbon nanotubes (CNTs) combined with different heat treatments are employed to develop a novel Na2MoO4@CNT/7075 composite with superior corrosion resistance, high strength and good plasticity. The results show that as compared to the peak aging (PA) treatment, double aging (DA) and retrogression and re-aging (RRA) treatments can result in wider precipitationfree zone in the grain boundary with slightly larger precipitate phases. As a result, the DA- and RRA-treated Na2MoO4@CNT/7075 composite has good mechanical properties with high strength and relatively good elongation. Moreover, all the Na2MoO4@CNT/7075 composites have extraordinary corrosion resistance with a low corrosion rate (similar to 0.01 mm/y) in 0.6 mol/L NaCl solution and the highest resistance to intergranular corrosion (IGC depth of <5 mu m) and exfoliation corrosion (EXCO rating of level N), regardless of the heat treatment. This is experimentally proved to originate from the pronounced surface enrichment of the Na2MoO4 precipitant released from exposed CNTs forming a protective surface film, which is independent of heat treatment, and therefore indicates that the aforementioned new strategy is highly effective to enhance corrosion resistance under different heat treatments. This work demonstrates that high-performance Al-Zn-Mg-Cu matrix composites with superior corrosion resistance and good mechanical properties can be developed by combining the new corrosionresistance strategy and proper heat treatments. |
| 资助项目 | IMR Innovation Fund[2024-ZD02] ; Youth Innovation Promotion Association CAS[2023200] ; Young Elite Scientist Sponsorship Program Cast from China Association for Science and Technology[YESS20210013] ; National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[52120105001] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001423156500001 |
| 出版者 | ELSEVIER |
| 资助机构 | IMR Innovation Fund ; Youth Innovation Promotion Association CAS ; Young Elite Scientist Sponsorship Program Cast from China Association for Science and Technology ; National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Zhengbin; Liu, Zhenyu; Zheng, Yugui |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Jie,Li, Qing,Xiao, Zhixiang,et al. A novel Na2MoO4@CNT/Al-Zn-Mg-Cu composite with superior corrosion resistance and good mechanical properties: Effect of heat treatment[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2025,35:2826-2839. |
| APA | Yang, Jie.,Li, Qing.,Xiao, Zhixiang.,Wang, Zhengbin.,Liu, Zhenyu.,...&Zheng, Yugui.(2025).A novel Na2MoO4@CNT/Al-Zn-Mg-Cu composite with superior corrosion resistance and good mechanical properties: Effect of heat treatment.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,35,2826-2839. |
| MLA | Yang, Jie,et al."A novel Na2MoO4@CNT/Al-Zn-Mg-Cu composite with superior corrosion resistance and good mechanical properties: Effect of heat treatment".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 35(2025):2826-2839. |
入库方式： OAI收割
来源：金属研究所
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