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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 Yang; Xu, Bin; Tariq, Naeem ul Haq; Sun, Ming Yue; Li, Dian Zhong; Li, Yi Yi
2020-03-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
Volume818
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.
DOI10.1016/j.jallcom.2019.152827
WOS IDWOS:000506166900006
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/155709
Collection中国科学院金属研究所
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.
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.
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).
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