Explosive compaction of CuCr alloys
(1. School of Materials Science and Engineering,
Harbin Institute of Technology, Harbin 150001, China;
2. Ningbo Branch,No.52 Institute of China Ordnance Industry, Ningbo 315041, China)
Harbin Institute of Technology, Harbin 150001, China;
2. Ningbo Branch,No.52 Institute of China Ordnance Industry, Ningbo 315041, China)
Abstract: The production of CuCr alloys utilizing explosive compaction was studied. Mixture powders of CuCr alloys placed in tubes with a dimension of d14.0mm×21.4mm can be compacted using explosive pads of 16.5mm or 22.5mm. Thicker pads of explosive make the compacts more porous. The effects of the ratio of me/mp, ratio of me/(mp+mt) and impact energy on the density of compacts were similar, they were chosen to control explosive compaction, respectively. When adequate value of the parameters me/mp, me/(mt+mp) and impact energy of unit area of tube was chosen, high density(7.858g/cm3), high hardness(HB189) and low conductance (13.6MS/m) of CuCr alloys could be made by explosive compaction. The general properties of CuCr alloys by explosive compaction are similar to those of CuCr alloys by traditional process.
Key words: explosive compaction; CuCr alloys; properties