| Microstructural Evolution of a High W Content Ni-Based Superalloy at gamma ' Sub-Solvus Temperatures | |
| Zhou, Sigeng1,2; Sheng, Naicheng1; Sun, Shijie1; Fan, Shigang1; Yu, Jinjiang1; Hou, Guichen1; Li, Jinguo1; Zhou, Yizhou1; Sun, Xiaofeng1 | |
| Corresponding Author | Sheng, Naicheng(ncsheng@imr.ac.cn) |
| 2022-06-07 | |
| Source Publication | METALS AND MATERIALS INTERNATIONAL
 |
| ISSN | 1598-9623 |
| Pages | 11 |
| Abstract | The evolution of gamma' phase and gamma/gamma' eutectic during short-time heat treatment of the Ni-based superalloy with high W content, K416B are investigated. In this study, high temperature Differential Scanning Calorimetry (DSC) is employed to design the heat treatment experiments and the precipitate temperature of secondary gamma' is found in the cooling curve. The standard coarsening model is applied to figure out the coarsening rate constant of gamma' precipitate. On this basis, a novel method is proposed to predict the globularization time of gamma phase in gamma/gamma' eutectic during the heat treatment process. As holding temperature increases, more gamma lamellae convert to platelets before reaching thermodynamic equilibrium. Electron microscopy observations exhibit the boundary splitting and necking formation on the y plate surface. Moreover, the dissolution kinetics of gamma phase is quantitatively assessed by JMAK model. The volume fraction descends rapidly in the initial stage, and then reach to a threshold. Above proposed approaches are validated via various heat treatment experiments. |
| Keyword | Ni-based superalloy gamma ' coarsening gamma/gamma ' eutectic Globularization |
| Funding Organization | National Natural Science Foundation of Liao Ning Province ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences ; Chinese Academy of Sciences |
| DOI | 10.1007/s12540-022-01216-6 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of Liao Ning Province[2020-MS-014] ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences[CXYJJ20-N-02] ; Chinese Academy of Sciences |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000807339500001 |
| Publisher | KOREAN INST METALS MATERIALS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174282 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sheng, Naicheng |
| Affiliation | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Zhou, Sigeng,Sheng, Naicheng,Sun, Shijie,et al. Microstructural Evolution of a High W Content Ni-Based Superalloy at gamma ' Sub-Solvus Temperatures[J]. METALS AND MATERIALS INTERNATIONAL,2022:11. |
| APA | Zhou, Sigeng.,Sheng, Naicheng.,Sun, Shijie.,Fan, Shigang.,Yu, Jinjiang.,...&Sun, Xiaofeng.(2022).Microstructural Evolution of a High W Content Ni-Based Superalloy at gamma ' Sub-Solvus Temperatures.METALS AND MATERIALS INTERNATIONAL,11. |
| MLA | Zhou, Sigeng,et al."Microstructural Evolution of a High W Content Ni-Based Superalloy at gamma ' Sub-Solvus Temperatures".METALS AND MATERIALS INTERNATIONAL (2022):11. |
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