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; Xu, Bin; Tariq, Naeem ul Haq; Sun, Ming Yue; Li, Dian Zhong; Li, Yi Yi
	2020-03-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
卷号	818
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.
DOI	10.1016/j.jallcom.2019.152827
WOS记录号	WOS:000506166900006
引用统计	被引频次：18[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/321006/155709
专题	中国科学院金属研究所
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.
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).