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Hydride Precipitation Behavior with Hydrogen Concentration and Homogenization Temperature in Zr-2.5%Nb Pressure Tube Material
Zr-2.5%Nb 압력관 재료에서 수소 농도와 균질화 처리 온도에 따른 수소화물 석출 거동
Sang Yup Lim, SungSoo Kim, Gyeong-Geun Lee
임상엽, 김성수, 이경근
Korean J. Met. Mater. 2019;57(4):203-213.   Published online 2019 Apr 5
DOI: https://doi.org/10.3365/KJMM.2019.57.4.203

The precipitation characteristics of hydrides in Zr-2.5% Nb pressure tube material were investigated for various hydrogen concentrations and homogenization temperatures. A surface hydride was formed using the electrolytic method and homogenized at various temperatures up to at 550 oC. The homogenization treatment was carried out at 300-550 oC over 240..... More

Hydrogenation Properties of MgH<sub>2</sub>CaO Composites Synthesized by Hydrogen-Induced Mechanical Alloying
Min Gyeom Kim, Jeong-Heum Han, Young-Hwan Lee, Jong-Tae Son, Tae Whan Hong
Korean J. Met. Mater. 2018;56(11):829-834.   Published online 2018 Nov 5
DOI: https://doi.org/10.3365/KJMM.2018.56.11.829

Although magnesium-based alloys are attractive materials for hydrogen storage applications, their activation properties, hydrogenation/dehydrogenation kinetics, thermodynamic equilibrium parameters, and degradation characteristics must be improved for practical applications. Further, magnesium poses several risks, including explosion hazard, environmental pollution, insufficient formability, and industrial damage. To overcome these problems, CaO-added Mg alloys, also..... More

A Review of Factors Influencing the Hydride Reorientation Phenomena in Zirconium Alloy Cladding During Long-Term Dry Storage
장기 건식저장 사용후핵연료 지르코늄 합금 피복관 내 수소화물 재배열 현상 영향 인자들에 대한 고찰
Ji-Min Lee, Ho-A Kim, Dong-Hak Kook, Yong-Soo Kim
이지민, 김호아, 국동학, 김용수
Korean J. Met. Mater. 2018;56(2):79-92.   Published online 2018 Feb 5
DOI: https://doi.org/10.3365/KJMM.2018.56.2.79

Zirconium-based alloys, widely used for nuclear fuel cladding, are highly susceptible to hydrideinduced embrittlement. The degree of the hydride embrittlement is strongly affected by not only its concentration but also its morphology. The hydride can drastically reduce the mechanical properties of the cladding, especially when it is radially precipitated. Recently..... More

in situ Fabrication of Fe-TiB<sub>2</sub> Nanocomposite Powder by Planetary Ball Milling and Subsequent Heat-treatment of FeB and TiH<sub>2</sub> Powder Mixture
FeB와 TiH2 혼합분말의 유성볼밀 및 후속열처리에 의한 Fe-TiB2 나노복합분말 in situ 제조
Xuan-Khoa Huynh, Sun-Woo Bae, Ji Soon Kim
Xuan-Khoa Huynh, 배선우, 김지순
Korean J. Met. Mater. 2017;55(1):10-15.   Published online 2017 Jan 5
DOI: https://doi.org/10.3365/KJMM.2017.55.1.10

Fe-TiB2 powder was synthesized in-situ by the planetary ball milling and subsequent heat-treatment of an iron boride (FeB) and titanium hydride (TiH2) powder mixture. Mechanical activation of the (FeB+TiH2) powder mixtures was observed after a milling time of 3 hours at 700 rpm of rotation speed, but activation was not..... More

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