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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국분말야금학회 한국분말야금학회지 한국분말야금학회지 제21권 제5호
발행연도
2014.1
수록면
349 - 354 (6page)

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This study is a basic research for repair material production which manufactured a Cu repair coating layeron the base material of a Cu plate using kinetic spray process. Furthermore, the manufactured material underwent anannealing heat treatment, and the changes of microstructure and macroscopic properties in the Cu repair coating layerand base material were examined. The powder feedstocks were sphere-shaped pure Cu powders with an average size of27.7 μm. The produced repair coating material featured 600 μm thickness and 0.8% porosity, and it had an identical α-Cu single phase as the early powder. The produced Cu repair coating material and base material displayed extremelyhigh adhesion characteristics that produced a boundary difficult to identify. Composition analysis confirmed that theimpurities in the base material and repair coating material had no significant differences. Microstructure observationafter a 500°C/1hr. heat treatment (vacuum condition) identified recovery, recrystallization and grain growth in the repaircoating material and featured a more homogeneous microstructure. The hardness difference (ΔHv) between the repaircoating material and base material significantly reduced from 87 to 34 after undergoing heat treatment.

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