Microstructural Characterization of U-10wt.%Zr Fuel Slugs Containing Rare-Earth Elements Prepared by Modified Injection Casting

• Autorzy: Lee Sang-Hun , Kim Ki-Hwan , Kuk Seoung-Woo , Park Jeong-Yong , Choi Ji-Hoon

Identyfikatory

DOI

10.24425/amm.2019.129479

• Języki publikacji: EN

Abstrakty

EN

U-10wt.%Zr metallic fuel slugs containing rare-earth (RE: a rare-earth alloy comprising 53% Nd, 25% Ce, 16% Pr and 6% La) elements for a sodium-cooled fast reactor were fabricated by modified injection casting as an alternative method. The distribution, size and composition of the RE inclusions in the metallic fuel slugs were investigated according to the content of the RE inclusions. There were no observed casting defects, such as shrunk pipes, micro-shrinkage or hot tears formed during solidification, in the metallic fuel slugs fabricated by modified injection casting. Scanning electron micrographs and energy-dispersive X-ray spectroscopy (SEM-EDS) showed that the Zr and RE inclusions were uniformly distributed in the matrix and the composition of the RE inclusions was similar to that of a charged RE element. The content and the size of the RE inclusions increased slightly according to the charge content of the RE elements. RE inclusions in U-Zr alloys will have a positive effect on fuel performance due to their micro-size and high degree of distribution.

Słowa kluczowe

EN

U-Zr; rare-earth element; microstructure; injection casting; sodium-cooled fast reactor; SFR

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 3
• Strony: 953--957
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., tab.

Twórcy

autor

Lee Sang-Hun

• Chungnam National University, Materials Science & Engineering Department, Daejeon, 34134, Republic of Korea
• Korea Atomic Energy Research Institute, SFR Fuel Development Division, Daejeon, 34507, Republic of Korea

autor

Kim Ki-Hwan

• Korea Atomic Energy Research Institute, SFR Fuel Development Division, Daejeon, 34507, Republic of Korea

autor

Kuk Seoung-Woo

• Korea Atomic Energy Research Institute, SFR Fuel Development Division, Daejeon, 34507, Republic of Korea

autor

Park Jeong-Yong

• Korea Atomic Energy Research Institute, SFR Fuel Development Division, Daejeon, 34507, Republic of Korea

autor

Choi Ji-Hoon

• Chungnam National University, Materials Science & Engineering Department, Daejeon, 34134, Republic of Korea

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Uwagi

EN

1. This work has been carried out under the Nuclear Research and Development Program supported by the Ministry of Science and Technology in the Republic of Korea.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).