中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
On the dendrite deformation and evolution mechanism of Ni-based superalloy during directional solidification

文献类型:期刊论文

作者Chen, Chao2,3; Sun, Jingxia2,3; Diao, Aimin1; Yang, Yanhong3; Li, Jinguo3; Zhou, Yizhou3
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2022-01-25
卷号891页码:8
ISSN号0925-8388
关键词Directional solidification Dendritic growth Misorientation Ni-based superalloy
DOI10.1016/j.jallcom.2021.161949
通讯作者Yang, Yanhong(yhyang@imr.ac.cn) ; Zhou, Yizhou(yzzhouimr@163.com)
英文摘要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.
资助项目National Science and Technology Major Project[2017-VI-0003-0073]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000707002300002
资助机构National Science and Technology Major Project
源URL[http://ir.imr.ac.cn/handle/321006/166526]  
专题金属研究所_中国科学院金属研究所
通讯作者Yang, Yanhong; Zhou, Yizhou
作者单位1.Naval Univ Engn, Coll Naval Architecture & Ocean Engn, Wuhan 430000, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
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.

入库方式: OAI收割

来源:金属研究所

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