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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Sn 조성 변화가 Cu-Sn 브레이징 접합부의 응고조직과 균열에 미치는 영향
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문병록, 유성훈, 이병휘, 홍원식, 정진욱, 강남현
Korean J. Met. Mater.
2025;63(5):370-379. Published online 2025 May 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.5.370
Abstract
Solidification cracking in brazed joints is significantly influenced by solidification conditions and alloy composition, making it a critical factor for the reliability of parts and products. Numerous studies have been conducted to predict solidification cracking in processes like casting, welding, and joining, leading to the development of an index to.....
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그린레이저를 이용한 리튬 이온 배터리 버스바 용접부의 응고균열과 성분 분포 상관관계
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유예지, Jeong-Hoi Koo, 강희신, 천은준
Korean J. Met. Mater.
2025;63(5):356-369. Published online 2025 May 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.5.356
Abstract
This study investigates the solidification cracking susceptibility of Cu-Steel laser welds used for cylindrical lithium-ion battery busbars. The research utilized green laser technology with three distinct beam patterns: Linear, Spiral + Wobble, and Circular + Wobble. Additionally, Ni-P coating layers of varying thicknesses (10, 50, 100 μm) were applied to.....
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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
Abstract
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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Web of Science 8
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