Experimental Study on Fiber Laser Cutting of UO2-stainless Steel Fuel Rod

被引：0

作者：

Chang S. ^{[1
]}

Yan T. ^{[1
]}

Zheng W. ^{[1
]}

Li G. ^{[1
]}

Zou S. ^{[2
]}

Wang X. ^{[2
]}

Xiao W. ^{[2
]}

Wang X. ^{[2
]}

Tang D. ^{[2
]}

机构：

[1] Department of Radiochemistry, China Institute of Atomic Energy, Beijing

[2] Hunan Provincial Key Laboratory of Emergency Safety Technology and Equipment for Nuclear Facilities, University of South China, Hengyang

来源：

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2021年 / 55卷 / 08期

关键词：

Cut-off surface; Fiber laser cutting; UO[!sub]2[!/sub]-stainless steel cladding;

D O I：

10.7538/yzk.2020.youxian.0611

中图分类号：

学科分类号：

摘要：

In order to verify the feasibility of using fiber laser for fuel assembly disassembly and fuel rod cutting, the cutting quality of UO2 pellet-stainless steel cladding composite structure with great difference in thermal properties and fuel rod pellet cutting quality were studied. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) were used to characterize the microstructure of cross-section of UO2 pellets. And the effects of laser cutting process on the surface morphology, element composition and phase of uranium pellets were studied. The results show that fiber laser can be used to cut nuclear fuel rod which is composed of UO2 pellets and 316Ti cladding. Although the laser cutting process leads to a lot of micropores and fragments on the cutting section, it doesn't cause the phase transformation of UO2. This study shows that the fiber laser can be used in the cutting of nuclear fuel rod which is composed of UO2 pellets and 316Ti cladding. Through the subsequent radiation shielding protection of the laser cutting system, the fiber laser can be applied to the spent fuel assembly disassembly and spent fuel rod cutting. © 2021, Editorial Board of Atomic Energy Science and Technology. All right reserved.

引用

页码：1523 / 1528

页数：5

共 15 条

[1] ZHANG Zefu, HE Jianyu, ZHU Zhaowu, Et al., Neptunium control in co-decontamination step of purex process, Journal of Nuclear Fuel Cycle and Environment, 8, 2, pp. 165-170, (2002)
[2] LI Jinying, SHI Lei, HU Yantao, Some considerations on the construction of a spent nuclear fuel reprocessing plant in China, Journal of Nuclear and Radiochemistry, 33, 4, pp. 204-210, (2011)
[3] KUANG Ya, ZOU Shuliang, TANG Dewen, Et al., Risk analysis for the used or spent fuel shearing machine based on the fuzzy FMEA, Journal of Safety and Environment, 16, 5, pp. 15-20, (2016)
[4] CHEN Jiahua, ZOU Shuliang, Research on the fault diagnosis for spent fuel shearing machine based on noise analysis and HMM-SVM hybrid model, Nuclear Science and Engineering, 38, 5, pp. 825-832, (2018)
[5] WURM J G, IMPE J V, CONINCK A D, Et al., Process for electro-chemically cutting an irradiated nuclear fuel assembly
[6] ABE Y, NAKAGIRI T, WATATANI S, Et al., Cutting operation of simulated fuel assembly heating examination by AWJ, JAEA-Technology, 2017-023, (2017)
[7] LADEINOV K A, POLYAKOV I V, SHVETSOV S A., Assembly for cutting off the fuel part of a spent fuel assembly, Atomic Energy, 110, 5, pp. 364-367, (2011)
[8] MARIMUTHU S, DUNLEAVEY J, LIU Y, Et al., Laser cutting of aluminium-alumina metal matrix composite, Optics and Laser Technology, 117, pp. 251-259, (2019)
[9] WEI J, YE Y, SUN Z, Et al., Control of the kerf size and microstructure in Inconel 738 super alloy by femtosecond laser beam cutting, Applied Surface Science, 370, pp. 364-372, (2016)
[10] SHARMA A, YADAVA V, RAO R., Optimization of kerf quality characteristics during Nd: YAG laser cutting of nickel based super alloy sheet for straight and curved cut profiles, Optics and Laser Technology, 48, pp. 915-925, (2010)

← 1 2 →