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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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리튬이온 배터리용 Cu-Steel 이종 레이저 용접부 응고균열에 미치는 Ni-P 도금의 영향
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박재현, 김명진, 강희신, 천은준
Korean J. Met. Mater.
2024;62(7):503-510. Published online 2024 Jun 28
DOI:
https://doi.org/10.3365/KJMM.2024.62.7.503
Abstract
This study investigated the effect of a Ni-P coating layer on the solidification cracking behavior of Cu–mild steel dissimilar welds during the manufacturing of cylindrical Li-ion battery packs for electric vehicles. Four Cu plates were prepared and characterized: uncoated Cu and three levels (12, 50, and 100 μm) of Ni–P-coated.....
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CMSX-4 초내열합금 용접 응고균열 거동에 미치는 단결정 성장 및 응고결정립계의 영향
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김경민, 정예선, D.V. Kiran, 권석환, 서성문, 천은준
Korean J. Met. Mater.
2024;62(1):22-31. Published online 2023 Dec 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.1.22
Abstract
Single-crystal superalloys have been popularly employed in high-temperature parts of gas turbines, such as blades. However, the welds of such alloys are highly susceptible to solidification cracking, which limits their applicability to high-temperature turbine blades. In this study, the effects of characteristics of weld solidification on solidification cracking susceptibilities (solidification.....
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레이저 급속 표면용융에 따른 일방향응고 247LC 초내열합금의 에피택셜 성장 및 응고균열 억제 방안
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김경민, 천은준
Korean J. Met. Mater.
2023;61(4):252-260. Published online 2023 Mar 22
DOI:
https://doi.org/10.3365/KJMM.2023.61.4.252
Abstract
In this study, the relationship between solidification cracking and epitaxial growth behavior with the high-speed laser surface melting of a directionally solidified 247LC superalloys was fundamentally and metallurgically investigated, to develop a successful welding procedure for the next generation of gas turbine blades. Under typical laser surface melting conditions (scan.....
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ERNiFeCr-2 용가재 적용에 따른 CM247LC 초내열합금 용접부 응고균열 민감도 변화 거동
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김경민, 정혜은, 정예선, 이의종, 이형수, 서성문, 천은준
Korean J. Met. Mater.
2021;59(10):698-708. Published online 2021 Sep 6
DOI:
https://doi.org/10.3365/KJMM.2021.59.10.698
Abstract
The metallurgical aspects of weld solidification cracking in Ni-based superalloys (with Ti+Al > 5 mass%) have not been widely investigated thus far. Herein, the solidification cracking susceptibility of the CM247LC superalloy and its welds with ERNiFeCr-2 filler wire was quantitatively evaluated using a novel modified Varestraint testing method, for the.....
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인코넬 FM52 및 308L 스테인리스강을 이용한 탄소강 이종 클래딩 및 공정변수에 따른 응고균열 발생 거동 변화: Transverse-Varestraint 시험을 이용한 응고취성 온도범위 평가
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김유경, 문병록, 강남현, 천은준
Korean J. Met. Mater.
2020;58(6):403-412. Published online 2020 May 14
DOI:
https://doi.org/10.3365/KJMM.2020.58.6.403
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In this study, solidification cracking behavior and susceptibility in dissimilar cladding of Inconel alloy FM 52, 308L stainless steel to carbon steel, was investigated by submerged arc welding and transverse−Varestraint testing with gas tungsten arc welding. The effect of cladding conditions on cracking behavior and susceptibility was extensively evaluated, and.....
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Crossref 6
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