| Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy | |
| Sun, Shijie; Sheng, Naicheng; Fan, Shigang; Ma, Yuejiao; Cao, Xi; Sang, Zhiru; Hou, Guichen; Li, Jinguo; Zhou, Yizhou; Sun, Xiaofeng | |
| Corresponding Author | Sheng, Naicheng(ncsheng@imr.ac.cn) |
| 2022-04-25 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 901Pages:10 |
| Abstract | The effect of wall thickness on the casting microstructures of polycrystalline Ni-based superalloy K465 was investigated. Abnormal feather-like grains with high-angle grain boundaries (HAGBs) were detected. The quantity of the feather-like grains increased with the decrease of the specimen thickness. Experimental investigation and numerical simulation results showed the cooling rate and the residual stress increased with the decrease of the specimen thickness. The increased residual stress and the heat treatment resulted from the sand box with elevated temperature induced the formation of the abnormal feather-like recrystallized grains. This work provides a guidance for producing turbine blades made of cast superalloys. (c) 2022 Elsevier B.V. All rights reserved. |
| Keyword | Polycrystalline superalloy Thin-wall effect Feather-like grains Residual stress Numerical simulation |
| Funding Organization | IMR Innovation Fund, China ; China Postdoctoral Science Foundation, China ; Special Research Assistant Program of Chinese Academy of Sciences, China ; Postdoctoral Innovation Talents Support Program, China |
| DOI | 10.1016/j.jallcom.2021.163581 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | IMR Innovation Fund, China[2021-PY16] ; China Postdoctoral Science Foundation, China[2021M703275] ; Special Research Assistant Program of Chinese Academy of Sciences, China ; Postdoctoral Innovation Talents Support Program, China[BX2021322] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000749784600001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173536 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sheng, Naicheng |
| Affiliation | Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Sun, Shijie,Sheng, Naicheng,Fan, Shigang,et al. Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,901:10. |
| APA | Sun, Shijie.,Sheng, Naicheng.,Fan, Shigang.,Ma, Yuejiao.,Cao, Xi.,...&Sun, Xiaofeng.(2022).Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy.JOURNAL OF ALLOYS AND COMPOUNDS,901,10. |
| MLA | Sun, Shijie,et al."Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy".JOURNAL OF ALLOYS AND COMPOUNDS 901(2022):10. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment