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- Study on the Elemental Diffusion Distance of a Pure Nickel Layer Additively Manufactured on 316H Stainless Steel
- UiJun Ko, Won Chan Lee, Gi Seung Shin, Ji-Hyun Yoon, Jeoung Han Kim
- J Powder Mater. 2024;31(3):220-225. Published online June 27, 2024
- DOI: https://doi.org/10.4150/jpm.2024.00164
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Abstract
PDF - Molten salt reactors represent a promising advancement in nuclear technology due to their potential for enhanced safety, higher efficiency, and reduced nuclear waste. However, the development of structural materials that can survive under severe corrosion environments is crucial. In the present work, pure Ni was deposited on the surface of 316H stainless steel using a directed energy deposition (DED) process. This study aimed to fabricate pure Ni alloy layers on an STS316H alloy substrate. It was observed that low laser power during the deposition of pure Ni on the STS316H substrate could induce stacking defects such as surface irregularities and internal voids, which were confirmed through photographic and SEM analyses. Additionally, the diffusion of Fe and Cr elements from the STS316H substrate into the Ni layers was observed to decrease with increasing Ni deposition height. Analysis of the composition of Cr and Fe components within the Ni deposition structures allows for the prediction of properties such as the corrosion resistance of Ni.
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Citations
Citations to this article as recorded by
- Microstructural analysis and characterization of nickel deposition on 316H stainless steel via gas tungsten arc welding and powder laser cladding
Won Chan Lee, Jin Woong Park, Seung Ju Nam, Ji-Hyun Yoon, Jeoung Han Kim
Powder Metallurgy.2025;[Epub] CrossRef
- Microstructural analysis and characterization of nickel deposition on 316H stainless steel via gas tungsten arc welding and powder laser cladding
- [Korean]
- Effects of Li2O Addition and Heat-Treatment on Formability of FeS2 Powder for Cathode of Thermal Battery
- Sung-Soo Ryu, Won-Jin Lee, Seongwon Kim, Hae-Won Cheong, Sung-Baek Cho, Seung-Ho Kang, Sung-Min Lee
- J Korean Powder Metall Inst. 2014;21(3):185-190. Published online June 1, 2014
- DOI: https://doi.org/10.4150/KPMI.2014.21.3.185
- 294 View
- 3 Download
- 1 Citations
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Abstract
PDF
FeS2 has been widely used for cathode materials in thermal battery because of its high stability and current capability at high operation temperature. Salts such as a LiCl-KCl were added as a binder for improving electrical performance and formability of FeS2 cathode powder. In this study, the effects of the addition of Li2O in LiCl-KCl binder on the formability of FeS2 powder compact were investigated. With the increasing amount of Li2O addition to LiCl-KCl binder salts, the strength of the pressed compacts increased considerably when the powder mixture were pre-heat-treated above 350°C. The heat-treatment resulted in promoting the coating coverage of FeS2 particles by the salts as Li2O was added. The observed coating as Li2O addition might be attributed to the enhanced wettability of the salt rather than its reduced melting temperature. The high strength of compacts by the Li2O addition and pre-heat-treatment could improve the formability of FeS2 raw materials.
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Citations
Citations to this article as recorded by- Effects of Particle Size and Binder Phase Addition on Formability of Li-Si Alloy Powder for Thermal Battery Anode
Sung-Soo Ryu, Hui-Sik Kim, Seongwon Kim, Hyung-Tae Kim, Hae-Won Cheong, Sung-Min Lee
Journal of Korean Powder Metallurgy Institute.2014; 21(5): 331. CrossRef
- Effects of Particle Size and Binder Phase Addition on Formability of Li-Si Alloy Powder for Thermal Battery Anode
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