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논문 기본 정보

자료유형
학술저널
저자정보
Junjia Cui (Hunan University) Xushi Huang (Hunan University) Dongying Dong (Hunan University) Guangyao Li (Hunan University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.27 No.9
발행연도
2021.9
수록면
3,385 - 3,397 (13page)
DOI
10.1007/s12540-020-00698-6

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Magnetic pulse compaction (MPC) technology had unique compaction advantages compared to traditional powder compactionmethods. In this study, the pure copper compacts have been consolidated by MPC technique. The effect of dischargeenergy on the microstructures, relative density, micro hardness, strain and stress of copper compacts were analyzed viaoptical microscopy, scanning electron microscopy, hardness tester and FEM simulation. The relationship between dischargeenergy and spring back was analyzed by numerical calculation. Results showed that the MPC method had the advantages torefine powder particles. The relative density of copper compacts reached 96% when the discharge energy was 9 kJ. Stressconcentration was occurred at the upper edge of the powder body, and propagated to the upper center, lower edge and middleposition of the powder body. The powder body could have a uniform strain distribution in a short period of time whenthe discharge energy was greater than 7 kJ. There was a linear relationship between the relative density and the logarithm ofVickers hardness. The axial and radial spring back both increased with the increase of discharge energy. When the dischargeenergy was 9 kJ, the axial and radial spring back was 2.36% and 0.42%.

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