Dissolution Behavior of Laves Phase and Hardness Evolution for Direct Energy Deposited Inconel 718 Alloy with <i>δ</i> Aging and Solution Treatment

doi:10.1007/s11661-024-07610-6

IMR OpenIR

	Dissolution Behavior of Laves Phase and Hardness Evolution for Direct Energy Deposited Inconel 718 Alloy with δ Aging and Solution Treatment
	Zhang, Yiting 1; Lan, Liangyun 1,2; Shi, Quanqiang 3; Shi, Enyu 1
通讯作者	Lan, Liangyun(lanly@me.neu.edu.cn) ; Shi, Quanqiang(qqshi12b@imr.ac.cn)
	2024-10-08
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
页码	19
摘要	In this study, 12 delta aging and solution treatment (delta-STDA) schedules and 6 direct solution treatment schedules were employed to investigate dissolution behaviors of the Laves phase and hardness evolution of the direct energy deposited Inconel 718 specimens. When delta aging treatment is performed before solution treatment, Laves phase characteristic parameters (i.e., size and volume fraction) and Nb segregation degree are decreased compared to those during direct solution treatment. This phenomenon may be due to the presence of the pre-precipitated delta phase significantly enhancing the rate of mass transfer at the Laves/gamma interface and accelerating Laves phase dissolution. As the solution temperature is 1020 degrees C, the average hardness of the delta-STDA-treated specimens is gradually increased with extending holding time. However, the average hardness is decreased with the increase in holding time as the solution temperature increases to 1060 degrees C and 1100 degrees C. During the delta-STDA process, the long-striped Laves phase gradually dissolves into the granular Laves phase. The dissolution kinetics of the Laves phase were explored using the Johnson-Mehl-Avrami-Kolmogorov model, Singh-Flemings model, H.B. Aaron and M.J. Whelan model, and interfacial reaction model. Singh-Flemings model and H.B. Aaron and M.J. Whelan model demonstrated that the diffusion of Nb atoms is the dominant mechanism when the long-striped Laves phase transforms into the blocky Laves phase. However, with the decrease in Nb segregation degree, the interfacial reaction becomes dominant during the blocky and granular Laves phase dissolution.
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China
DOI	10.1007/s11661-024-07610-6
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51605084] ; Fundamental Research Funds for the Central Universities of China[N2103021]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001331256800003
出版者	SPRINGER
引用统计	被引频次：2[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/321006/190515
专题	中国科学院金属研究所
通讯作者	Lan, Liangyun; Shi, Quanqiang
作者单位	1.Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Liaoning, Peoples R China 2.Northeastern Univ, Minist Educ China, Key Lab Vibrat & Control Aeroprop Syst, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yiting,Lan, Liangyun,Shi, Quanqiang,et al. Dissolution Behavior of Laves Phase and Hardness Evolution for Direct Energy Deposited Inconel 718 Alloy with δ Aging and Solution Treatment[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2024:19.
APA	Zhang, Yiting,Lan, Liangyun,Shi, Quanqiang,&Shi, Enyu.(2024).Dissolution Behavior of Laves Phase and Hardness Evolution for Direct Energy Deposited Inconel 718 Alloy with δ Aging and Solution Treatment.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,19.
MLA	Zhang, Yiting,et al."Dissolution Behavior of Laves Phase and Hardness Evolution for Direct Energy Deposited Inconel 718 Alloy with δ Aging and Solution Treatment".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2024):19.