| Interface healing mechanism of fine-grained Ni-Co-based superalloy during hot-compression bonding | |
| Ren, Shaofei1,2,3; Bai, Xiaolong4; Liu, Sheng1,2; Sun, Mingyue1,2; Xu, Bin1,2; Cui, Chuanyong5 | |
| Corresponding Author | Sun, Mingyue(mysun@imr.ac.cn) |
| 2024-02-20 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 173Pages:45-53 |
| Abstract | The interface healing mechanism of fine-grained Ni-Co-based superalloy during hot-compression bonding (HCB) is investigated. During HCB, the incompatibility of deformation between the gamma and the primary gamma' leads to a large number of dislocation pairs (DP), stacking faults (SF), and micro-twins (MT) in the pri-mary gamma'. These defects act as fast channels for elemental diffusion, leading to supersaturation of the pri-mary gamma' and promoting the growth of the gamma-shell. On the one hand, the primary gamma' with a gamma-shell moves towards the bonding interface due to anomalous yielding phenomena of the primary gamma' and plastic flow during HCB process. The increase in the number of defects leads to the growth of gamma -gamma' heterogeneous epitaxial recrystallization (HERX) grain with coherent structure at the bonding interface, which promotes the bulge of the interface grain boundaries (IGBs). On the other hand, the nucleation and growth of a necklace-like distribution of discontinuous dynamic recrystallization (DDRX) grain at the interface lead to the healing of IGBs. With the synergistic action of DDRX and HERX, the mechanical properties of Ni- Co-based superalloy joints through HCB achieve the same level as the base material. This finding further enriches the theory of interface healing in HCB.(c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Hot-compression bonding Ni-Co-based superalloy Discontinuous dynamic recrystallization Heterogeneous epitaxial recrystallization |
| Funding Organization | National Key Research and Development Program ; National Natural Science Foundation of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; IMR Innovation Foundation ; LingChuang Research Project of China National Nuclear Corporation, CNNC Science Fund for Talented Young Scholars and Youth Innovation Promotion Association, CAS |
| DOI | 10.1016/j.jmst.2023.06.040 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program[2018YFA0702900] ; National Natural Science Foundation of China[52173305] ; National Natural Science Foundation of China[52101061] ; National Natural Science Foundation of China[52233017] ; National Natural Science Foundation of China[52203384] ; National Science and Technology Major Project of China[2019ZX06004010] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; China Postdoctoral Science Foundation[2020M681004] ; China Postdoctoral Science Foundation[2021M703276] ; IMR Innovation Foundation[2022-PY12] ; LingChuang Research Project of China National Nuclear Corporation, CNNC Science Fund for Talented Young Scholars and Youth Innovation Promotion Association, CAS |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:001076578200001 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/179356 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Mingyue |
| Affiliation | 1.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.China United Gas Turbine Technol Co Ltd, Beijing 100000, Peoples R China 5.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Ren, Shaofei,Bai, Xiaolong,Liu, Sheng,et al. Interface healing mechanism of fine-grained Ni-Co-based superalloy during hot-compression bonding[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,173:45-53. |
| APA | Ren, Shaofei,Bai, Xiaolong,Liu, Sheng,Sun, Mingyue,Xu, Bin,&Cui, Chuanyong.(2024).Interface healing mechanism of fine-grained Ni-Co-based superalloy during hot-compression bonding.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,173,45-53. |
| MLA | Ren, Shaofei,et al."Interface healing mechanism of fine-grained Ni-Co-based superalloy during hot-compression bonding".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 173(2024):45-53. |
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