Contribution of Sc doping to the growth and adhesion of alumina scale on AlCoCrFeNi high-entropy alloy
文献类型：期刊论文
| 作者 | Ren, Hao1; Chen, Dezhi1; Gao, Xuefeng2; Liu, Tong1; Qin, Gang3; Chen, Ruirun1; Wu, Shiping1; Guo, Jingjie1; Fu, Hengzhi1 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 252页码:6 |
| 关键词 | High entropy alloy Oxidation Sc doping Interface adhesion |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2024.116272 |
| 通讯作者 | Chen, Dezhi(chendezhi383@163.com) ; Chen, Ruirun(ruirunchen@hit.edu.cn) |
| 英文摘要 | Equimolar AlCoCrFeNi high-entropy alloy (HEA) often experiences serious oxidation degradation despite its superior mechanical properties at elevated temperatures. Herein, we reveal that minor Sc addition can enhance the oxidation resistance of AlCoCrFeNi HEA at 1100 degrees C, and the microstructure and oxidation properties for (AlCoCrFeNi)100_xScx HEAs (Sc-0, Sc-0.1, Sc-0.5 and Sc-1) are evaluated. Except for the original A2 + B2 phases, the Laves phase is found with increasing Sc addition. Moderate Sc addition is beneficial for interface adhesion by lowering the driving force for scale spallation and enhancing the interface toughness, and excessive Sc addition, however, results in serious internal oxidation due to the generation of Sc2O3 stringers as the high diffusivity paths for inward O ions. It is also proved that enhancing the interface toughness is more beneficial to improve the oxidation resistance compared to reducing scale growth rate. Our results can offer guidance for designing advanced alloys with excellent oxidation resistance. |
| 资助项目 | National Natural Science Foundation of China[52425401] ; National Natural Science Foundation of China[51825401] ; China Postdoctoral Science Foundation[2023TQ0099] ; Heilongjiang Postdoctoral Fund[LBH-Z23132] ; Interdisciplinary Research Foundation of HIT ; National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology[6142909230101] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001269466000001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Heilongjiang Postdoctoral Fund ; Interdisciplinary Research Foundation of HIT ; National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Chen, Dezhi; Chen, Ruirun |
| 作者单位 | 1.Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Hong Kong, Dept Mech Engn, Hong Kong 999077, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Hao,Chen, Dezhi,Gao, Xuefeng,et al. Contribution of Sc doping to the growth and adhesion of alumina scale on AlCoCrFeNi high-entropy alloy[J]. SCRIPTA MATERIALIA,2024,252:6. |
| APA | Ren, Hao.,Chen, Dezhi.,Gao, Xuefeng.,Liu, Tong.,Qin, Gang.,...&Fu, Hengzhi.(2024).Contribution of Sc doping to the growth and adhesion of alumina scale on AlCoCrFeNi high-entropy alloy.SCRIPTA MATERIALIA,252,6. |
| MLA | Ren, Hao,et al."Contribution of Sc doping to the growth and adhesion of alumina scale on AlCoCrFeNi high-entropy alloy".SCRIPTA MATERIALIA 252(2024):6. |
入库方式： OAI收割
来源：金属研究所
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