Relations of Microstructural Attributes and Strength-Ductility of Zirconium Alloys with Hydrides

doi:10.1186/s10033-023-00925-2

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Relations of Microstructural Attributes and Strength-Ductility of Zirconium Alloys with Hydrides
	Fang, Chao ; Guo, Xiang ; Li JH(李江华); Chen, Gang
刊名	CHINESE JOURNAL OF MECHANICAL ENGINEERING
	2023-08-17
卷号	36 期号:1 页码:89
关键词	Zirconium alloy Hydride Strength and ductility Cohesive finite element method Microcrack initiation and propagation
ISSN号	1000-9345
DOI	10.1186/s10033-023-00925-2
英文摘要	As the first safety barrier of nuclear reactors, zirconium alloy cladding tubes have attracted extensive attention because of its good mechanical properties. The strength and ductility of zirconium alloy are of great significance to the service process of cladding tubes, while brittle hydrides precipitate and thus deteriorate the overall performance. Based on the cohesive finite element method, the effects of cohesive strength, interfacial characteristics, and hydrides geometric characteristics on the strength and ductility of two-phase material (zirconium alloy with hydrides) are numerically simulated. The results show that the fracture behavior is significantly affected by the cohesive strength and that the overall strength and ductility are sensitive to the cohesive strength of the zirconium alloy. Furthermore, the interface is revealed to have prominent effects on the overall fracture behavior. When the cohesive strength and fracture energy of the interface are higher than those of the hydride phase, fracture initiates in the hydrides, which is consistent with the experimental phenomena. In addition, it is found that the number density and arrangement of hydrides play important roles in the overall strength and ductility. Our simulation provides theoretical support for the performance analysis of hydrogenated zirconium alloys during nuclear reactor operation.
分类号	二类/Q1
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:001049480200001
其他责任者	Guo, X (corresponding author), Tianjin Univ, Sch Mech Engn, Tianjin 300354, Peoples R China. ; Guo, X (corresponding author), Tianjin Key Lab Nonlinear Dynam & Control, Tianjin 300072, Peoples R China. ; Chen, G (corresponding author), Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92584]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.{Fang, Chao, Guo, Xiang} Tianjin Univ, Sch Mech Engn, Tianjin 300354, Peoples R China 2.{Guo, Xiang} Tianjin Key Lab Nonlinear Dynam & Control, Tianjin 300072, Peoples R China 3.{Li, Jianghua} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 4.{Chen, Gang} Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Fang, Chao,Guo, Xiang,Li JH,et al. Relations of Microstructural Attributes and Strength-Ductility of Zirconium Alloys with Hydrides[J]. CHINESE JOURNAL OF MECHANICAL ENGINEERING,2023,36(1):89.
APA	Fang, Chao,Guo, Xiang,李江华,&Chen, Gang.(2023).Relations of Microstructural Attributes and Strength-Ductility of Zirconium Alloys with Hydrides.CHINESE JOURNAL OF MECHANICAL ENGINEERING,36(1),89.
MLA	Fang, Chao,et al."Relations of Microstructural Attributes and Strength-Ductility of Zirconium Alloys with Hydrides".CHINESE JOURNAL OF MECHANICAL ENGINEERING 36.1(2023):89.