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.
Original language | English |
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Pages (from-to) | 9-14 |
Number of pages | 6 |
Journal | Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy |
Volume | 48 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2001 Jan |
Keywords
- Carbon
- Copper
- Mechanical alloying
- Planetary ball mill
- Supersaturated solid solution
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Metals and Alloys
- Materials Chemistry