Impact consolidation of mixed copper and carbon powders mechanically alloyed

T. Yamane, H. Okubo, N. Oki, K. Hisayuki, M. Konishi, Y. Minamino, Y. Koizumi, M. Kiritani, M. Komatsu, Jin Kim Sung Jin Kim

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

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 languageEnglish
Pages (from-to)9-14
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume48
Issue number1
DOIs
Publication statusPublished - 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

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