Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy

doi:10.1016/j.jallcom.2021.163581

IMR OpenIR

	Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy
	Sun, Shijie; Sheng, Naicheng; Fan, Shigang; Ma, Yuejiao; Cao, Xi; Sang, Zhiru; Hou, Guichen; Li, Jinguo; Zhou, Yizhou; Sun, Xiaofeng
通讯作者	Sheng, Naicheng(ncsheng@imr.ac.cn)
	2022-04-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	901 页码:10
摘要	The effect of wall thickness on the casting microstructures of polycrystalline Ni-based superalloy K465 was investigated. Abnormal feather-like grains with high-angle grain boundaries (HAGBs) were detected. The quantity of the feather-like grains increased with the decrease of the specimen thickness. Experimental investigation and numerical simulation results showed the cooling rate and the residual stress increased with the decrease of the specimen thickness. The increased residual stress and the heat treatment resulted from the sand box with elevated temperature induced the formation of the abnormal feather-like recrystallized grains. This work provides a guidance for producing turbine blades made of cast superalloys. (c) 2022 Elsevier B.V. All rights reserved.
关键词	Polycrystalline superalloy Thin-wall effect Feather-like grains Residual stress Numerical simulation
资助者	IMR Innovation Fund, China ; China Postdoctoral Science Foundation, China ; Special Research Assistant Program of Chinese Academy of Sciences, China ; Postdoctoral Innovation Talents Support Program, China
DOI	10.1016/j.jallcom.2021.163581
收录类别	SCI
语种	英语
资助项目	IMR Innovation Fund, China[2021-PY16] ; China Postdoctoral Science Foundation, China[2021M703275] ; Special Research Assistant Program of Chinese Academy of Sciences, China ; Postdoctoral Innovation Talents Support Program, China[BX2021322]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000749784600001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：5[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/321006/173536
专题	中国科学院金属研究所
通讯作者	Sheng, Naicheng
作者单位	Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Sun, Shijie,Sheng, Naicheng,Fan, Shigang,et al. Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,901:10.
APA	Sun, Shijie.,Sheng, Naicheng.,Fan, Shigang.,Ma, Yuejiao.,Cao, Xi.,...&Sun, Xiaofeng.(2022).Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy.JOURNAL OF ALLOYS AND COMPOUNDS,901,10.
MLA	Sun, Shijie,et al."Abnormal feather-like grains induced by the thin-wall effect in a polycrystalline nickel-based superalloy".JOURNAL OF ALLOYS AND COMPOUNDS 901(2022):10.