| Effect of oxide layer on the electrochemical corrosion behavior of a Ni-based superalloy in 3.5 wt% NaCl | |
| Wang, Yuemiao1,2; Yang, Yanhong2; Qu, Jinglong3; Cui, Limin4; Cui, Chuanyong2 | |
| Corresponding Author | Yang, Yanhong(yhyang@imr.ac.cn) ; Cui, Chuanyong(chycui@imr.ac.cn) |
| 2023-10-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
 |
| ISSN | 1452-3981 |
| Volume | 18Issue:10Pages:11 |
| Abstract | The recycle technology of superalloy is a research hotspot and difficulty in the filed of superalloy. Recovery of superalloy bulk material is a major focus. Purification smelting after surface impurity removal is an application trend of superalloy regeneration technology. During the use and processing of superalloy, the surface will form a dense oxide layer. The oxide layer of superalloy scrap is difficult to remove by traditional mechanical method. However, the oxide layer on the superalloy surface can be efficiently removed by electrochemical dissolution. Based on the background above, we investigated the electrochemical corrosion behavior of GH4738 superalloy which oxidized for different time in 3.5 wt% NaCl. The effect of oxide layer on the electrochemical corrosion behavior of GH4738 was studied by potentiodynamic polarization and electrochemical impendence spectroscopy (EIS). The morphology and phase composition of the alloy were analyzed by scanning electron microscope (SEM), electron probe X-ray Micro-Analyzer (EPMA) and X-ray diffraction (XRD). The results indicated that the dense oxide film not only has a protective effect on the oxidation corrosion of the alloy, but also has a protective effect on the electrochemical corrosion of the alloy. The oxide layer impedes the electrochemical dissolution of the alloy. |
| Keyword | Superalloy Oxidation Electrochemical corrosion Mixed -oxides scale |
| Funding Organization | National Key R & D Pro- gram of China ; National Science and Technology Major Project |
| DOI | 10.1016/j.ijoes.2023.100310 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R & D Pro- gram of China[2021YFB3700401] ; National Science and Technology Major Project[Y2019 -VII -0011-0151] |
| WOS Research Area | Electrochemistry |
| WOS Subject | Electrochemistry |
| WOS ID | WOS:001087292400001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/177960 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, Yanhong; Cui, Chuanyong |
| Affiliation | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Beijing CISRI Gaona Mat & Technol Co Ltd, Beijing 10081, Peoples R China 4.Zhonghang Shangda Superalloys Co Ltd, Xingtai 054800, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Yuemiao,Yang, Yanhong,Qu, Jinglong,et al. Effect of oxide layer on the electrochemical corrosion behavior of a Ni-based superalloy in 3.5 wt% NaCl[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2023,18(10):11. |
| APA | Wang, Yuemiao,Yang, Yanhong,Qu, Jinglong,Cui, Limin,&Cui, Chuanyong.(2023).Effect of oxide layer on the electrochemical corrosion behavior of a Ni-based superalloy in 3.5 wt% NaCl.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,18(10),11. |
| MLA | Wang, Yuemiao,et al."Effect of oxide layer on the electrochemical corrosion behavior of a Ni-based superalloy in 3.5 wt% NaCl".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 18.10(2023):11. |
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