Carbide precipitation in a Ni-based superalloy fabricated by DED and cast after long-term thermal exposure

doi:10.1016/j.matlet.2025.138061

IMR OpenIR

	Carbide precipitation in a Ni-based superalloy fabricated by DED and cast after long-term thermal exposure
	Zhang, Xue 1,2; Liang, Jingjing 2; Zhao, Yusong 1,3; Mu, Yahang 1,2; Zhang, Huan 2,3; Li, Jinguo 2
通讯作者	Liang, Jingjing(jjliang@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
	2025-04-01
发表期刊	MATERIALS LETTERS
ISSN	0167-577X
卷号	384 页码:5
摘要	The present work investigates the effect of carbide precipitation on microstructure stability in a Ni-based superalloy fabricated by directed energy deposition (DED) and cast. Long-term thermal exposure was employed for evaluating the microstructure stability. The results show that needle-like M6C carbides with the size of more than 15 mu m and rod-like MC carbides with the size of about 2 mu m are precipitated in cast, and DED Ni-based superalloy, respectively. These carbides are rich W, Mo, and Re. The microstructure stability of DED Ni-based superalloys is better due to less severe dendrite segregation. Ni-based superalloys fabricated by DED can accommodate more refractory elements. These results would offer a valuable reference for designing composition of DED Ni-based superalloys.
关键词	Carbides Microstructure stability Ni-based superalloy DED
资助者	National Key R & D Program of China ; National Science and Technology Major Proj-ect, China
DOI	10.1016/j.matlet.2025.138061
收录类别	SCI
语种	英语
资助项目	National Key R & D Program of China[2021YFB3702503] ; National Science and Technology Major Proj-ect, China[Y2019-VII-0011-0151]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:001408204200001
出版者	ELSEVIER
引用统计	被引频次：1[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/321006/180555
专题	中国科学院金属研究所
通讯作者	Liang, Jingjing; Li, Jinguo
作者单位	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.Shenyang Aerosp Univ, Sch Mat Sci & Engn, Shenyang 110136, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xue,Liang, Jingjing,Zhao, Yusong,et al. Carbide precipitation in a Ni-based superalloy fabricated by DED and cast after long-term thermal exposure[J]. MATERIALS LETTERS,2025,384:5.
APA	Zhang, Xue,Liang, Jingjing,Zhao, Yusong,Mu, Yahang,Zhang, Huan,&Li, Jinguo.(2025).Carbide precipitation in a Ni-based superalloy fabricated by DED and cast after long-term thermal exposure.MATERIALS LETTERS,384,5.
MLA	Zhang, Xue,et al."Carbide precipitation in a Ni-based superalloy fabricated by DED and cast after long-term thermal exposure".MATERIALS LETTERS 384(2025):5.