Cyclic hot corrosion behavior and mechanism of GH4738 superalloy in mixed molten salt
文献类型：期刊论文
| 作者 | Xin, Dan1; Huang, Hailiang1; Yang, Yanhong2; Wang, Guanglei3; Qu, Jinglong3; Chen, Yang1; Wu, Chongchong1; Zhao, Jiankang1; Wang, Yinuo1; Ma, Wenting1 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 32页码:3456-3464 |
| 关键词 | GH4738 superalloy Molten salt Cyclic hot corrosion |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2024.08.162 |
| 通讯作者 | Huang, Hailiang(huanghailiang894@163.com) |
| 英文摘要 | The research on the hot corrosion resistance of nickel-based superalloys is critical to determining and enhancing their service life. Therefore, this study investigates the cyclic hot corrosion behavior of GH4738 alloy coated with a mixed salt (75 wt% Na2SO4+25 wt% NaCl) at 750 degrees C and 800 degrees C. X-ray diffractometer (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), and transmission electron microscope (TEM) are used to analyze the phase compositions and film structures of the corrosion products, as well as to explore the corrosion mechanism. The results show that a thicker oxide layer is formed at higher temperatures, indicating poorer hot corrosion resistance at elevated temperatures. The corrosion products form at both temperatures to show a distinct layered structure, the outer layer is mainly composed of Cr2O3 and a small amount of TiO2, while the inner layer consists of Al2O3, CrS, and TiS. In addition, it is found that the corrosion mechanism of O, S, and Cl elements in the corrosion process is synergistic and accompanied by alkaline melting. |
| 资助项目 | National Key R &D Pro-gram of China[2021YFB3700401] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001316972900001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key R &D Pro-gram 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 | Huang, Hailiang |
| 作者单位 | 1.Yantai Univ, Inst Adv Studies Precis Mat, Yantai 264005, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Gaona Aero Mat Co Ltd, Beijing 10081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xin, Dan,Huang, Hailiang,Yang, Yanhong,et al. Cyclic hot corrosion behavior and mechanism of GH4738 superalloy in mixed molten salt[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,32:3456-3464. |
| APA | Xin, Dan.,Huang, Hailiang.,Yang, Yanhong.,Wang, Guanglei.,Qu, Jinglong.,...&Ma, Wenting.(2024).Cyclic hot corrosion behavior and mechanism of GH4738 superalloy in mixed molten salt.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,32,3456-3464. |
| MLA | Xin, Dan,et al."Cyclic hot corrosion behavior and mechanism of GH4738 superalloy in mixed molten salt".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 32(2024):3456-3464. |
入库方式： OAI收割
来源：金属研究所
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