Prototyping of nuclear fuel assembly parts by laser powder bed fusion of Inconel 718

被引：0

作者：

Jeong, Sang Guk ^{[1
,2
]}

Kim, Eun Seong ^{[2
]}

Ahn, Soung Yeoul ^{[2
]}

Chun, Joo Hong ^{[3
]}

Ryu, Joo Young ^{[4
]}

Woo, Han Gil ^{[3
]}

Yoo, Sang Hun ^{[5
]}

Kang, Suk Hoon ^{[6
]}

Kim, Hyoung Seop ^{[1
,2
,7
,8
]}

机构：

[1] Tohoku Univ, Adv Inst Mat Res WPI AIMR, Sendai 9808577, Japan

[2] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 37673, South Korea

[3] KEPCO NF, Nucl Fuel Dev Sect, Daejeon 34057, South Korea

[4] Overseas Project Dev Sect, KEPCO NF, Daejeon 34057, South Korea

[5] 3D Convergence Technol Ctr, Gwangju Techno Pk, Gwangju 61003, South Korea

[6] Korea Atom Energy Res Inst KAERI, Nucl Mat Div, Daejeon 34057, South Korea

[7] Pohang Univ Sci & Technol POSTECH, Grad Inst Ferrous & Ecomat Technol GIFT, Pohang 37673, South Korea

[8] Yonsei Univ, Inst Convergence Res & Educ Adv Technol, Seoul 03722, South Korea

来源：

PROGRESS IN NUCLEAR ENERGY | 2025年 / 184卷

基金：

新加坡国家研究基金会;

关键词：

MICROSTRUCTURE; EVOLUTION; METAL;

D O I：

10.1016/j.pnucene.2025.105694

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Laser powder bed fusion (LPBF) technology offers various advantages, making it a promising option for the nuclear industry. This study presents an LPBF-prototyping case for its potential use in the nuclear industry. After optimizing the LPBF process and heat treatment conditions, mechanical tests were performed, including room- temperature and high-temperature tensile and fatigue tests. The samples demonstrated mechanical properties sufficient to replace commercial parts. The bottom grid and bottom nozzle parts of a nuclear fuel assembly were also manufactured using LPBF technology and compared to commercial parts. The high design flexibility of LPBF allowed for innovative structures, resulting in better performance than commercial parts. These research examples support the practical application of additive manufacturing in the nuclear field by providing necessary data for standardization and certification.

引用

页数：12

共 67 条

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