Yttrium-induced morphological evolution of primary MC carbides in a second-generation Ni-based single crystal superalloys

doi:10.1016/j.matchar.2025.114880

IMR OpenIR

	Yttrium-induced morphological evolution of primary MC carbides in a second-generation Ni-based single crystal superalloys
	Wang, Nan 1,2; Liu, Jide 1; Xi, Zhandong 3; Yang, Shulin 4; Xu, Wei 2; Li, Jinguo 1
通讯作者	Liu, Jide(jdliu@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
	2025-05-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	223 页码:11
摘要	Evolution of the morphology of primary MC carbides with the doping of yttrium with different content from 0 to 0.5 wt% in a typical second-generation nickel based SX superalloys (DD5) was investigated in this work. The deep-etched samples indicate that the morphology of MC carbides evolves from script-like to faceted octahedral block with the increase of yttrium content to 0.5 wt%. Meanwhile, STEM analyses demonstrated that yttrium significantly disturbed the orientation relationship between primary MC carbides and matrix. These phenomena were attributed to the ultra-low surface tension property of yttrium, which has a spontaneous segregation propensity at the phase interface during solidification process, and utterly alters compositional and temperature fields in the liquid at the front of carbide/matrix interface.
关键词	MC carbides Morphology Crystal orientation Yttrium element Single crystal superalloy
资助者	National Science and Technology Major Project
DOI	10.1016/j.matchar.2025.114880
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[J2019-VI-0023-0139]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001441467500001
出版者	ELSEVIER SCIENCE INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179724
专题	中国科学院金属研究所
通讯作者	Liu, Jide; Li, Jinguo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110016, Peoples R China 3.PipeChina Southwest Pipeline Co Ltd, Chengdu 610000, Peoples R China 4.AECC Shenyang Liming Aeroengine Grp Ltd, Shenyang 110043, Peoples R China
推荐引用方式 GB/T 7714	Wang, Nan,Liu, Jide,Xi, Zhandong,et al. Yttrium-induced morphological evolution of primary MC carbides in a second-generation Ni-based single crystal superalloys[J]. MATERIALS CHARACTERIZATION,2025,223:11.
APA	Wang, Nan,Liu, Jide,Xi, Zhandong,Yang, Shulin,Xu, Wei,&Li, Jinguo.(2025).Yttrium-induced morphological evolution of primary MC carbides in a second-generation Ni-based single crystal superalloys.MATERIALS CHARACTERIZATION,223,11.
MLA	Wang, Nan,et al."Yttrium-induced morphological evolution of primary MC carbides in a second-generation Ni-based single crystal superalloys".MATERIALS CHARACTERIZATION 223(2025):11.