| Solidification behavior and segregation characteristics of high W-content cast Ni-Based superalloy K416B | |
| Li, Qi1,2; Xie, Jun1; Yu, JinJiang1; Shu, Delong1; Hou, Guichen1; Sun, Xiaofeng1; Zhou, Yizhou1 | |
| Corresponding Author | Xie, Jun(junxie@imr.ac.cn) ; Yu, JinJiang(jjyu@imr.ac.cn) |
| 2021-02-15 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 854Pages:10 |
| Abstract | The solidification behavior of high W-content cast Ni-Based superalloy K416B has been investigated by DTA measurement, isothermal solidification experiment, and Thermo-calc simulation. The element segregation characteristic during solidification was also analyzed by EPMA. The results show that the solidification path of K416B can be summarized as follows: L -> L + gamma (1371 degrees C); L -> L + gamma + M6C (1370 degrees C); L -> L + gamma +MC (1332 degrees C); L -> L + eutectic (gamma + gamma') (1286 degrees C); L -> MC (High Hf) (1147 degrees C). During the crystallize of primary gamma dendrite, W and Co were enriched in the solid phase, while Cr, Al, Ti, Nb and Hf were enriched in the residual liquid. The positive segregation elements piled up at the remaining liquid promoted the formation of MC carbides and eutectic (gamma + gamma'). MC carbides precipitated at the interdendritic region and broke the residual liquid network, eutectic (gamma + gamma') seemed instability and easily translated into eutectic gamma' by the remelting of gamma phase and the coarsening of gamma' phase during subsequent cooling. The solidification terminated by the formation of MC (High Hf) phase. (C) 2020 Elsevier B.V. All rights reserved. |
| Keyword | High-W Superalloy K416B Solidification Segregation Thermo-calc |
| Funding Organization | National Natural Science Foundation of China ; State Key Laboratory of Solidification Processing in NWPU ; Liaoning Provincial Natural Science Foundation of China |
| DOI | 10.1016/j.jallcom.2020.156027 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51701212] ; National Natural Science Foundation of China[51971214] ; National Natural Science Foundation of China[51771191] ; State Key Laboratory of Solidification Processing in NWPU[SKLSP201747] ; Liaoning Provincial Natural Science Foundation of China[2019-MS-336] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000596076300008 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158726 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Xie, Jun; Yu, JinJiang |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Qi,Xie, Jun,Yu, JinJiang,et al. Solidification behavior and segregation characteristics of high W-content cast Ni-Based superalloy K416B[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,854:10. |
| APA | Li, Qi.,Xie, Jun.,Yu, JinJiang.,Shu, Delong.,Hou, Guichen.,...&Zhou, Yizhou.(2021).Solidification behavior and segregation characteristics of high W-content cast Ni-Based superalloy K416B.JOURNAL OF ALLOYS AND COMPOUNDS,854,10. |
| MLA | Li, Qi,et al."Solidification behavior and segregation characteristics of high W-content cast Ni-Based superalloy K416B".JOURNAL OF ALLOYS AND COMPOUNDS 854(2021):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