| On the dendrite deformation and evolution mechanism of Ni-based superalloy during directional solidification | |
| Chen, Chao1,2; Sun, Jingxia1,2; Diao, Aimin3; Yang, Yanhong1; Li, Jinguo1; Zhou, Yizhou1 | |
| Corresponding Author | Yang, Yanhong(yhyang@imr.ac.cn) ; Zhou, Yizhou(yzzhouimr@163.com) |
| 2022-01-25 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 891Pages:8 |
| Abstract | The dendritic growth in a novel casting with complex solidification path during directional solidification was investigated by experiment and simulation. The different dendrite deformations were found in the side strip and the corner, and the misorientation was measured by electron backscattered diffraction. The dendrite deformation in the local strip above each platform causes the cumulative deviation of dendrite direction in the whole strip, and this deformation is caused by the differential thermal shrinkage between upper and lower cross-sections. In addition, the dendrite with incomplete trunk concentrately deformed in the corner, and the deviation direction is consistent with its branches toward the platform, indicating that the deformation occurs before branching and thereby thermal concentrated stress is excluded. The simulation results confirm the occurrence of horizontal shrinkage stress in the mushy zone of the platform when the dendrites in the sidebar leave the platform, and also determine that the dendrite branches occur before the effect of the thermal concentration stress in the corner. (c) 2021 Elsevier B.V. All rights reserved. |
| Keyword | Directional solidification Dendritic growth Misorientation Ni-based superalloy |
| Funding Organization | National Science and Technology Major Project |
| DOI | 10.1016/j.jallcom.2021.161949 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Science and Technology Major Project[2017-VI-0003-0073] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000707002300002 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166527 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, Yanhong; Zhou, Yizhou |
| 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 3.Naval Univ Engn, Coll Naval Architecture & Ocean Engn, Wuhan 430000, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Chao,Sun, Jingxia,Diao, Aimin,et al. On the dendrite deformation and evolution mechanism of Ni-based superalloy during directional solidification[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,891:8. |
| APA | Chen, Chao,Sun, Jingxia,Diao, Aimin,Yang, Yanhong,Li, Jinguo,&Zhou, Yizhou.(2022).On the dendrite deformation and evolution mechanism of Ni-based superalloy during directional solidification.JOURNAL OF ALLOYS AND COMPOUNDS,891,8. |
| MLA | Chen, Chao,et al."On the dendrite deformation and evolution mechanism of Ni-based superalloy during directional solidification".JOURNAL OF ALLOYS AND COMPOUNDS 891(2022):8. |
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