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An innovative approach for grain refinement in Ni-based superalloys: Modification in the classical delta process through gamma '' pre-aging treatment
Zhang, Jian Yang1,2,3; Xu, Bin1,3; Tariq, Naeem ul Haq4; Sun, Ming Yue1,3; Li, Dian Zhong1,3; Li, Yi Yi1
Corresponding AuthorSun, Ming Yue(mysun@imr.ac.cn)
2020-03-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume818Pages:7
AbstractIn 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.
KeywordIsothermal heat treatment Grain refinement Superalloy Microstructure Phase transformation
Funding OrganizationNational 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
DOI10.1016/j.jallcom.2019.152827
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000506166900006
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136554
Collection中国科学院金属研究所
Corresponding AuthorSun, Ming Yue
Affiliation1.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
Recommended Citation
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.
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