Accession Number:

ADA433302

Title:

Hafnium-Based Bulk Metallic Glasses for Kinetic Energy Penetrators

Descriptive Note:

Conference paper

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Report Date:

2004-12-01

Pagination or Media Count:

19.0

Abstract:

A new family of quinary, hafnium-based, bulk-metallic glass-forming alloys has been developed for use in composite kinetic-energy penetrators. The alloys are based on an invariant point identified in the hafnium copper-nickel ternary system. They are denser than zirconium-based glass-forming compositions, and exhibit a higher reduced glass-transition temperature than alloys prepared by 11 hafnium substitution into the zirconium-based alloys. The combination of density and glass-forming ability exhibited by this alloy moves the composite technology closer to being a viable substitute for depleted-uranium penetrators.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Metallurgy and Metallography
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE