Single phase tungsten alloy for shaped charge liner
View Patent ↗A single phase metal alloy usually for forming a shaped charge liner for a penetrating jet or explosively formed penetrator forming warhead consists essentially of from a trace to 90%, by weight, of cobalt, from 10% to 50% by weight, of tungsten, and the balance nickel and inevitable impurities. One preferred composition is, by weight, from 16% to 22%, cobalt, from 35% to 40% tungsten and the balance is nickel and inevitable impurities. The alloy is worked and recrystallized and then formed into a desired product. In addition to a shaped charge liner, other useful products include a fragmentation warhead, a warhead casing, ammunition, radiation shielding and weighting.
1. A shaped charge or explosively formed penetrator liner, comprising:
said liner formed from a metal alloy having a composition consisting essentially of:
from 10% to 90%, by weight, of cobalt;
from 10% to 50% by weight, of tungsten;
and the balance nickel and inevitable impurities.
2. The shaped charge or explosively formed penetrator liner of claim 1 consisting essentially of:
from 10% to 30%, by weight, of cobalt;
from 30% to 50% by weight, of tungsten;
and the balance nickel and inevitable impurities.
3. The shaped charge or explosively formed penetrator liner of claim 2 consisting essentially of:
from 16% to 22%, by weight, of cobalt;
from 35% to 40% by weight, of tungsten;
and the balance nickel and inevitable impurities.
4. The shaped charge or explosively formed penetrator liner of claim 2 having a microstructure commensurate with having been cold worked and recrystallized.
5. The shaped charge or explosively formed penetrator liner of claim 4 wherein said shaped charge or explosively formed penetrator liner has a grain size of ASTM Grain No. 2.5.
6. The shaped charge or explosively formed penetrator liner of claim 2 wherein said shaped charge or explosively formed penetrator liner has a generally conical shape.
7. The shaped charge or explosively formed penetrator liner of claim 6 being a component of a warhead, said warhead further including a detonatable explosive in contact with an exterior surface of said cone.
8. The shaped charge or explosively formed penetrator liner of claim 7 wherein said generally conical shape is effective to generate a penetrating jet on detonation of said detonatable explosive.
9. The shaped charge or explosively formed penetrator liner of claim 7 wherein said generally conical shape is effective to generate an explosively formed penetrator on detonation of said detonatable explosive.