The oxidation behaviors of Cr2N and Cr/Cr2N multilayer coatings on Zircaloy-4 tubes in high temperature environment

doi:10.1088/2051-672X/ac2564

CORC > 兰州理工大学 > 兰州理工大学

	The oxidation behaviors of Cr2N and Cr/Cr2N multilayer coatings on Zircaloy-4 tubes in high temperature environment
	Gou, Rongnian 1,2; Shang, Lunlin 2; Wang, Liguo 2,3; Zhang, Guangan 2; Lu, Zhibin 2; Bai, Guanghai 4; Wang, Shunhua 1
刊名	SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
	2021-09
卷号	9 期号:3
关键词	Zircaloy-4 tube Cr Cr2N multilayer coating oxidation behavior ATF
ISSN号	2051-672X
DOI	10.1088/2051-672X/ac2564
英文摘要	The aim of Accident-Tolerant Fuels (ATF) is to delay or prevent oxidation of nuclear fuels cladding in the case of loss of coolant accident (LOCA) conditions. And the usage of cladding coatings is an important strategy to improve fault tolerance of nuclear fuels cladding. Meanwhile, the choice of coating types and the design of coating structure are very important. Here, Cr2N coating and Cr/Cr2N multilayer coating were deposited on Zircaloy-4 tubes by magnetron sputtering. Oxidation resistance tests of original and coated Zircaloy-4 tubes were performed in air atmosphere at different high temperatures. It was found that Cr/Cr2N multilayer coating exhibited lower weight gain rate and fewer cracks on surface than Cr2N coating after oxidation. After oxidation at 800 degrees C, the cross sectional image shows that the cracks on the Cr2N coating surface expand and reach the substrate, while the Cr/Cr2N multilayer coating was intact without cracking. For Cr/Cr2N multilayer coating, a metallic Cr layer metal formed on the ZrO2 layer after oxidation 900 degrees C due to redox reaction of Cr2O3 and Zr. The obtained results revealed that Zircaloy-4 tubes coated with Cr/Cr2N multilayer exhibited better oxidation performance.
WOS研究方向	Engineering ; Instruments & Instrumentation ; Materials Science
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000696373400001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148504]
专题	兰州理工大学
作者单位	1.Lanzhou Jiaotong Univ, Sch Mat Sci & Engn, Lanzhou 730070, Peoples R China; 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China; 3.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 4.China Nucl Power Technol Res Inst, Life Management Technol Ctr, Suzhou Nucl Power Res Inst, Suzhou 215004, Peoples R China
推荐引用方式 GB/T 7714	Gou, Rongnian,Shang, Lunlin,Wang, Liguo,et al. The oxidation behaviors of Cr2N and Cr/Cr2N multilayer coatings on Zircaloy-4 tubes in high temperature environment[J]. SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES,2021,9(3).
APA	Gou, Rongnian.,Shang, Lunlin.,Wang, Liguo.,Zhang, Guangan.,Lu, Zhibin.,...&Wang, Shunhua.(2021).The oxidation behaviors of Cr2N and Cr/Cr2N multilayer coatings on Zircaloy-4 tubes in high temperature environment.SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES,9(3).
MLA	Gou, Rongnian,et al."The oxidation behaviors of Cr2N and Cr/Cr2N multilayer coatings on Zircaloy-4 tubes in high temperature environment".SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES 9.3(2021).