| Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution | |
Shuang S1; Lyu, GJ2,3; Chung D1; Wang XZ4 ; Gao X1; Mao HH5,6; Li WP7; He QF1; Guo BS8; Zhong XY7; Wang YJ(王云江)2,3; Yang Y1,7,9
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| 通讯作者 | Yang, Y.(yonyang@city.edu.hk) |
| 发表期刊 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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| 2023-03-10 | |
| 卷号 | 139页码:59-68 |
| ISSN | 1005-0302 |
| 摘要 | High corrosion resistance of alloys is essential for their structural applications; however, most alloys suffer from degradation of their corrosion resistance with the increasing acidity of their surround-ings. Nonetheless, we developed a series of medium-entropy alloys (MEAs) in this work, which ex-hibit high strength, superior fracture toughness and ultra-high corrosion resistance, outperforming the variety of corrosion resistant alloys hitherto reported. Most interestingly, our MEAs exhibit an unusual anti-corrosion behavior and their corrosion resistance increases with acidity in Cl- containing solutions. Through extensive thermodynamic calculations, density functional theory (DFT) simulations and experi-ments, we reveal that the unusual anti-corrosion behavior of our MEAs can be attributed to their surface chemical complexity, which facilitates the physio-chemical-absorption of H2O and O 2 and thus the rapid formation of metastable medium entropy passive films that contain the lowest amount of defects, as compared to the passive films on conventional alloys reported in the literature.(c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 关键词 | Corrosion Passivation Alloy design Multi-principal element alloys Medium-entropy alloys |
| DOI | 10.1016/j.jmst.2022.07.061 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000880084300006 |
| 关键词[WOS] | CR-MO ALLOYS ; ELECTROCHEMICAL-BEHAVIOR ; STAINLESS-STEEL ; PASSIVE FILM ; PITTING CORROSION ; PIPELINE STEEL ; ALUMINUM-ALLOY ; POINT-DEFECT ; CHLORIDE-ION ; OXIDE-FILMS |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 资助项目 | Research Grant Council (RGC), Hong Kong Government, through General Research Fund (RGC)[CityU11213118] ; Research Grant Council (RGC), Hong Kong Government, through General Research Fund (RGC)[CityU11200719] ; Research Grant Council (RGC), Hong Kong Government, through General Research Fund (RGC)[CityU11209317] |
| 项目资助者 | Research Grant Council (RGC), Hong Kong Government, through General Research Fund (RGC) |
| 论文分区 | 一类 |
| 力学所作者排名 | 3+ |
| RpAuthor | Yang, Y. |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/90817 |
| 专题 | 非线性力学国家重点实验室 |
| 作者单位 | 1.City Univ Hong Kong, Coll Engn, Dept Mech Engn, Kowloon Tong,Kowloon, Hong Kong, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China; 4.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Ctr Adv Lubricat & Seal Mat, Xian 710072, Peoples R China; 5.KTH, Dept Mat Sci & Engn, Unit Struct, SE-10044 Stockholm, Sweden; 6.Thermocalc Software, Rasunday 18, SE-16767 Solna, Sweden; 7.City Univ Hong Kong, Coll Engn, Dept Mat Sci & Engn, Kowloon Tong,Kowloon, Hong Kong, Peoples R China; 8.Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Peoples R China; 9.City Univ Hong Kong, Coll Engn, Dept Adv Design & Syst Engn, Kowloon Tong,Kowloon, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shuang S,Lyu, GJ,Chung D,et al. Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,139:59-68. |
| APA | Shuang S.,Lyu, GJ.,Chung D.,Wang XZ.,Gao X.,...&Yang Y.(2023).Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,139,59-68. |
| MLA | Shuang S,et al."Unusually high corrosion resistance in MoxCrNiCo medium entropy alloy enhanced by acidity in aqueous solution".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 139(2023):59-68. |
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