Impact Consolidation of Mixed Copper and Carbon Powders Mechanically Alloyed

Toshimi Yamane; Hirotaka Okubo; Nobuhiro Oki; Koji Hisayuki; Masaaki Konishi; Yoritoshi Minamino; Yuichiro Koizumi; Mitio Kiritani; Masao Komatsu; Sung Jin Kim

doi:10.2497/jjspm.48.9

Toshimi Yamane, Hirotaka Okubo, Nobuhiro Oki, Koji Hisayuki, Masaaki Konishi, Yoritoshi Minamino, Yuichiro Koizumi, Mitio Kiritani, Masao Komatsu, Sung Jin Kim

Author information

Toshimi Yamane
Department of Mechanical Engineering, Hiroshima Institute of Technology
Hirotaka Okubo
Graduate School, Hiroshima Institute of Technology
Nobuhiro Oki
Department of Mechanical Engineering, Hiroshima Institute of Technology
Koji Hisayuki
Graduate School, Hiroshima Institute of Technology
Masaaki Konishi
Department of Mechanical Engineering, Hiroshima Institute of Technology
Yoritoshi Minamino
Department of Adaptive Machine Systems, Osaka University
Yuichiro Koizumi
Department of Adaptive Machine Systems, Osaka University
Mitio Kiritani
Department of Electronics, Hiroshima Institute of Technology
Masao Komatsu
Department of Mechanical Engineering, Hiroshima Institute of Technology
Sung Jin Kim
Department of Materials Science and Metallurgical Engineering, Kumoh National University of Technology

Keywords: supersaturated solid solution, mechanical alloying, copper, carbon, planetary ball mill

JOURNAL FREE ACCESS

2001 Volume 48 Issue 1 Pages 9-14

DOI https://doi.org/10.2497/jjspm.48.9

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Abstract

Mixed copper and carbon powders were mechanically alloyed (MA) in a planetary ball mill. The supersaturated solid solubility of carbon in MA copper was 25at%C which was determined from lattice parameter change. The supersaturated copper powder consolidated by static compression of 1.4 GPa, has the relative density of 95%, and Vickers hardness of 121. Otherwise, that consolidated dynamically by a bullet of 90.1 g at the speed of 38.1 m/s after 0.4 GPa static compression, has the relative density of 96.3%, and Vickers hardness of 200. Keeping the MA effect more than half, MA powders could be consolidated by impact pressure.

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