Effect of powder size segregation on the mechanical properties of hot isostatic pressing Inconel 718 alloys

doi:10.1016/j.jmrt.2022.09.009

IMR OpenIR

	Effect of powder size segregation on the mechanical properties of hot isostatic pressing Inconel 718 alloys
	Tian, Xiaosheng 1,2; Wu, Jie 2; Lu, Zhengguan 2; Yang, Rui 2; Xu, Lei 2
通讯作者	Wu, Jie(jwu10s@imr.ac.cn) ; Xu, Lei(lxu@imr.ac.cn)
	2022-11-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	21 页码:84-96
摘要	Pre-alloyed powder of Inconel 718 alloy was prepared by electrode induction melting gas atomization (EIGA) and powder metallurgy (PM) Inconel 718 alloys were made through hot isostatic pressing (HIPing) route. The change in volume of large size parts (special-shaped cylindrical capsule) has a much lower effect on the alloy than the powder size. The vibration of the powder filling process over a long time causes the particle size segregation phenomenon that the proportion of coarse particle powders in top part increases, and the proportion of finer particle powders in middle and bottom part increases. This phenomenon has little effect on tensile strength of PM Inconel 718 alloys at room temperature and 650 degrees C, but has a significant effect on elongation, room temperature impact properties, and stress rupture life at 650 degrees C/725 MPa. Compared to finer particle powders, the plastic deformation of coarse particle powders is small and a large number of under-deformed powder particles are retained, forming prior particle boundaries (PPBs) and reducing the bonding strength between powder particles. In order to avoid particle size segregation, optimized process parameters and reasonable particle size should be used. (c) 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Inconel 718 Hot isostatic pressing Particle size Deformation Mechanical properties
资助者	CAS Project for Young Scientists in Basic Research
DOI	10.1016/j.jmrt.2022.09.009
收录类别	SCI
语种	英语
资助项目	CAS Project for Young Scientists in Basic Research ; [YSBR-025]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000867305900005
出版者	ELSEVIER
引用统计	被引频次：14[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/321006/176245
专题	中国科学院金属研究所
通讯作者	Wu, Jie; Xu, Lei
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.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	Tian, Xiaosheng,Wu, Jie,Lu, Zhengguan,et al. Effect of powder size segregation on the mechanical properties of hot isostatic pressing Inconel 718 alloys[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2022,21:84-96.
APA	Tian, Xiaosheng,Wu, Jie,Lu, Zhengguan,Yang, Rui,&Xu, Lei.(2022).Effect of powder size segregation on the mechanical properties of hot isostatic pressing Inconel 718 alloys.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,21,84-96.
MLA	Tian, Xiaosheng,et al."Effect of powder size segregation on the mechanical properties of hot isostatic pressing Inconel 718 alloys".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 21(2022):84-96.