Recrystallization in a Ni-based single-crystal superalloy traced by quasi-in-situ EBSD

doi:10.1016/j.scriptamat.2024.116369

IMR OpenIR

	Recrystallization in a Ni-based single-crystal superalloy traced by quasi-in-situ EBSD
	Li, Yihang 1; Zhou, Haijing 2; Li, Longfei 1; Lu, Song 1; Xie, Guang 3; Zhang, Jian 3; Feng, Qiang 1
通讯作者	Li, Longfei(lilf@skl.ustb.edu.cn) ; Feng, Qiang(qfeng@skl.ustb.edu.cn)
	2025-01-15
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	255 页码:6
摘要	By using quasi-in-situ EBSD, we successfully probed the nucleation and growth of recrystallized grains during sub-solvus annealing at 1300 degree celsius of an as-cast single-crystal superalloy after pre-compression. It clearly indicated that recrystallization nucleated in the interdendritic region through low-angle grain boundary migration under the experimental condition rather than subgrain coalescence or thermal twinning. Despite being hindered by the undissolved gamma ' precipitates in the interdendritic region, these newly formed high-angle grain boundaries could still migrate rapidly. However, the migration velocity will slow quickly as the stored energy decreases. During 10.0-min annealing, the grain boundaries could migrate 14.4-27.4 mu m, but the recrystallized grains were still confined in the interdendritic region without abnormal growth. These results provide novel perspective on the comprehension of recrystallization nucleation in single-crystal superalloys and the migration of newly formed high-angle grain boundaries under the hinderance of gamma ' precipitates, and are valuable for developing process to control recrystallization.
关键词	Single-crystal superalloy Nucleation of recrystallization Grain boundary migration Quasi-in-situ EBSD
资助者	National Science and Technology Major Project ; National Natural Science Foundation of China ; Science Center for Gas Turbine Project
DOI	10.1016/j.scriptamat.2024.116369
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[J2019-VI-0010-0124] ; National Science and Technology Major Project[J2019-IV-0006-0074] ; National Natural Science Foundation of China[52331005] ; National Natural Science Foundation of China[91860201] ; National Natural Science Foundation of China[52271042] ; National Natural Science Foundation of China[52171095] ; Science Center for Gas Turbine Project[P2022-C-IV-001-001]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001314086400001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189843
专题	中国科学院金属研究所
通讯作者	Li, Longfei; Feng, Qiang
作者单位	1.Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China 2.Cent Iron & Steel Res Inst, Beijing Key Lab Adv High Temp Mat, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Yihang,Zhou, Haijing,Li, Longfei,et al. Recrystallization in a Ni-based single-crystal superalloy traced by quasi-in-situ EBSD[J]. SCRIPTA MATERIALIA,2025,255:6.
APA	Li, Yihang.,Zhou, Haijing.,Li, Longfei.,Lu, Song.,Xie, Guang.,...&Feng, Qiang.(2025).Recrystallization in a Ni-based single-crystal superalloy traced by quasi-in-situ EBSD.SCRIPTA MATERIALIA,255,6.
MLA	Li, Yihang,et al."Recrystallization in a Ni-based single-crystal superalloy traced by quasi-in-situ EBSD".SCRIPTA MATERIALIA 255(2025):6.