A novel type of core-shell structured secondary phase particles in Ge-addition modified Zircaloy-4 alloy subjected to beta-phase region solution treatment

doi:10.1016/j.jnucmat.2023.154435

IMR OpenIR

	A novel type of core-shell structured secondary phase particles in Ge-addition modified Zircaloy-4 alloy subjected to beta-phase region solution treatment
	Han, Fuzhou 1,2; Guo, Wenbin 1,2; Li, Geping 1,2; Ren, Jie 1,2; Wang, Qichen 1,2; Zhang, Yingdong 1,2; Yuan, Fusen 1,2; Muhammad, Ali 1,2; Liu, Chengze 1,2; Gu, Hengfei 1,3
通讯作者	Li, Geping()
	2023-08-01
发表期刊	JOURNAL OF NUCLEAR MATERIALS
ISSN	0022-3115
卷号	581 页码:5
摘要	Secondary phase particles (SPPs) in a Ge-addition modified Zircaloy-4 alloy subjected to beta-phase region solution treatment was investigated in detail by transmission electron microscopy to acquire a better understanding on the microstructure of this new zirconium alloy. Result revealed that a novel type of SPPs with core-shell structure were frequently observed in this alloy, in which the "core" and "shell" structures were separately identified as primitive tetragoanl Zr3Ge phase and Zr(Fe,Cr)(2) Laves phase with a hexagonal close-packed (HCP) structure. The orientation relationship between the Zr3Ge core, Zr(Fe,Cr)(2) shell structures and the surrounding matrix were investigated and can be approximately described as [115](Zr3Ge)vertical bar vertical bar[11 (2) over bar(6) over bar](Zr(Fe,Cr)2)vertical bar vertical bar[11 (2) over bar3](alpha-Zr). It was strongly suggested that the gradient of Ge concentration occurred during the subsequent beta-phase region annealing affected the phase stability of Zr(Fe,Cr,Ge)(2) nanophase in the as-cast Ge-addition modified Zr-4 alloy, thereby causing the formation of Zr3Ge/core-Zr(Fe,Cr) (2)/shell microstructures. The knowledge attained from this study, shedding new lights on the formation mechanism of these novel core-shell SPPs, would also greatly benefit the understanding on the formation of similar composite precipitates in other alloys. (c) 2023 Elsevier B.V. All rights reserved.
关键词	Core-shell structure SPPs Crystallography Zirconium TEM
DOI	10.1016/j.jnucmat.2023.154435
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Nuclear Science & Technology
WOS类目	Materials Science, Multidisciplinary ; Nuclear Science & Technology
WOS记录号	WOS:001054113700001
出版者	ELSEVIER
引用统计	被引频次：4[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/321006/179118
专题	中国科学院金属研究所
通讯作者	Li, Geping
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Advanved Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Han, Fuzhou,Guo, Wenbin,Li, Geping,et al. A novel type of core-shell structured secondary phase particles in Ge-addition modified Zircaloy-4 alloy subjected to beta-phase region solution treatment[J]. JOURNAL OF NUCLEAR MATERIALS,2023,581:5.
APA	Han, Fuzhou.,Guo, Wenbin.,Li, Geping.,Ren, Jie.,Wang, Qichen.,...&Gu, Hengfei.(2023).A novel type of core-shell structured secondary phase particles in Ge-addition modified Zircaloy-4 alloy subjected to beta-phase region solution treatment.JOURNAL OF NUCLEAR MATERIALS,581,5.
MLA	Han, Fuzhou,et al."A novel type of core-shell structured secondary phase particles in Ge-addition modified Zircaloy-4 alloy subjected to beta-phase region solution treatment".JOURNAL OF NUCLEAR MATERIALS 581(2023):5.