An innovative approach for grain refinement in Ni-based superalloys: Modification in the classical delta process through gamma '' pre-aging treatment

doi:10.1016/j.jallcom.2019.152827

IMR OpenIR

	An innovative approach for grain refinement in Ni-based superalloys: Modification in the classical delta process through gamma '' pre-aging treatment
	Zhang, Jian Yang 1,2,3; Xu, Bin 1,3; Tariq, Naeem ul Haq 4; Sun, Ming Yue 1,3; Li, Dian Zhong 1,3; Li, Yi Yi 1
通讯作者	Sun, Ming Yue(mysun@imr.ac.cn)
	2020-03-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	818 页码:7
摘要	In this correspondence, we present an innovative approach to refine the grain size of Inconel 718 superalloy. By adopting this novel strategy, precipitation of a homogeneously distributed delta phase is achieved through a gamma '' -> delta phase transformation. The grain size of the alloy was remarkably reduced from 200 mu m to 5 mu m through isothermal heat treatment and subsequent plastic deformation. As opposed to the preferred nucleation sites in the classical delta process (DP), the delta phase is homogeneously precipitated in the grain interior. At the isothermal deformation stage, the delta phase served as a precursor to instigate complete dynamic recrystallization (grain refinement) of the parent grains. (C) 2019 Elsevier B.V. All rights reserved.
关键词	Isothermal heat treatment Grain refinement Superalloy Microstructure Phase transformation
资助者	National Key Research and Development Program ; National Natural Science Foundation of China ; National Science and Technology Major Project of China ; Key Program of the Chinese Academy of Sciences ; CAS Interdisciplinary Innovation Team
DOI	10.1016/j.jallcom.2019.152827
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program[2018YFA0702900] ; National Natural Science Foundation of China[U1508215] ; National Natural Science Foundation of China[51774265] ; National Science and Technology Major Project of China[2019ZX06004010] ; Key Program of the Chinese Academy of Sciences[ZDRW-CN-2017-1] ; CAS Interdisciplinary Innovation Team
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:000506166900006
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：14[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/321006/136554
专题	中国科学院金属研究所
通讯作者	Sun, Ming Yue
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Pakistan Inst Engn & Appl Sci, Dept Met & Mat Engn, Islamabad, Pakistan
推荐引用方式 GB/T 7714	Zhang, Jian Yang,Xu, Bin,Tariq, Naeem ul Haq,et al. An innovative approach for grain refinement in Ni-based superalloys: Modification in the classical delta process through gamma '' pre-aging treatment[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,818:7.
APA	Zhang, Jian Yang,Xu, Bin,Tariq, Naeem ul Haq,Sun, Ming Yue,Li, Dian Zhong,&Li, Yi Yi.(2020).An innovative approach for grain refinement in Ni-based superalloys: Modification in the classical delta process through gamma '' pre-aging treatment.JOURNAL OF ALLOYS AND COMPOUNDS,818,7.
MLA	Zhang, Jian Yang,et al."An innovative approach for grain refinement in Ni-based superalloys: Modification in the classical delta process through gamma '' pre-aging treatment".JOURNAL OF ALLOYS AND COMPOUNDS 818(2020):7.