| The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water | |
| Dong, Jiuyang1; Feng, Xingyu1; Hao, Xianchao2,3; Kuang, Wenjun1 | |
| Corresponding Author | Kuang, Wenjun(wjkuang66@gmail.com) |
| 2021-11-01 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 204Pages:6 |
| Abstract | Co-free high entropy alloy (HEA) 28%Fe-27%Ni-27%Mn-18%Cr shows good irradiation resistance and could be a potential candidate for structural material in nuclear power industry. In this work, the environmental degradation behavior of this HEA was investigated in high temperature hydrogenated water. This HEA shows extensive intergranular cracking after constant extension rate tensile test, indicating that it is very susceptible to stress corrosion cracking (SCC) initiation. The microstructure analysis indicates that Mn and Cr diffuse outwards along the grain boundary during oxidation, inducing grain boundary migration. The Cr flux promotes the formation of Cr-enriched oxide layer above the grain boundary which prevents intergranular oxidation when the sample is unstressed. However, Mn is unstable in the oxide and tends to dissolve into the solution, making the oxide porous. The porous oxide fractures readily when stressed, inducing SCC initiation. (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| Keyword | High entropy alloy Oxidation Corrosion Scanning transmission electron microscopy (STEM) Diffusion-induced grain boundary motion (DIGM) |
| Funding Organization | Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Young Talent Support Plan of Xi'an Jiaotong University |
| DOI | 10.1016/j.scriptamat.2021.114127 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Ministry of Science and Technology of China[2019YFA0209902] ; National Natural Science Foundation of China[51971172] ; Young Talent Support Plan of Xi'an Jiaotong University |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000690402200007 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166836 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Kuang, Wenjun |
| Affiliation | 1.Xi An Jiao Tong Univ, Ctr Adv Mat Performance Nanoscale CAMP Nano, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.ChineseAcad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Dong, Jiuyang,Feng, Xingyu,Hao, Xianchao,et al. The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water[J]. SCRIPTA MATERIALIA,2021,204:6. |
| APA | Dong, Jiuyang,Feng, Xingyu,Hao, Xianchao,&Kuang, Wenjun.(2021).The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water.SCRIPTA MATERIALIA,204,6. |
| MLA | Dong, Jiuyang,et al."The environmental degradation behavior of FeNiMnCr high entropy alloy in high temperature hydrogenated water".SCRIPTA MATERIALIA 204(2021):6. |
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