| 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 Author | Sun, Ming Yue(mysun@imr.ac.cn) |
| 2020-03-25 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 818Pages:7 |
| Abstract | 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. |
| Keyword | Isothermal heat treatment Grain refinement Superalloy Microstructure Phase transformation |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000506166900006 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/136554 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Ming Yue |
| Affiliation | 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 |
| 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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