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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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직접용융증착 중 스캔 전략에 따른 18Ni300 마레이징강의 미세조직 및 기계적 특성
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주수빈, 노건우, 정영훈, 백민재, 이동준, 김정기
Korean J. Met. Mater.
2025;63(1):1-10. Published online 2025 Jan 5
DOI:
https://doi.org/10.3365/KJMM.2025.63.1.1
Abstract
Although the laser scan strategy does not affect the energy density of laser-based additive manufacturing, changes in laser scan direction critically influence the residual stress and microstructure of metallic components. However, only a limited number of studies have investigated the role of laser scan strategy on the microstructure and mechanical.....
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레이저 직접적층법으로 제조된 Fe-8Cr-3V-2Mo-2W합금의 마모특성에 미치는 열처리공정 및 상대재의 영향
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하경식, 박영근, 김태환, 백경윤, 전종배, 심도식, 문영훈, 이욱진
Korean J. Met. Mater.
2020;58(10):680-692. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.680
Abstract
This study aimed to investigate the wear performance of laser direct energy deposited Fe-8Cr3V-2Mo-2W alloy under various wear environments, in terms of different heat treatment conditions. Ball on disk tribology tests were performed using high-carbon steel and zirconia balls as counter materials. The wear rates of the alloy depended significantly.....
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Web of Science 9
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Directed Energy Deposition에서 흄의 생성 원인 및 대책
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김강형, 정찬현, 정대용, 현승균
Korean J. Met. Mater.
2020;58(6):383-396. Published online 2020 May 14
DOI:
https://doi.org/10.3365/KJMM.2020.58.6.383
Abstract
Pores and cracks are known as the main defects in metal additive manufacturing (MAM), including directed energy deposition(DED). A gaseous fume is often produced by laser flash (instantaneous high temperature) during laser processing, which may cause various defects such as porosity, lack of fusion, inhomogeneity, low flowability and composition change,.....
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Web of Science 2
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