Accession Number:

ADA270477

Title:

Development and Characterization of Adiabatic Shear Prone Tungsten Heavy Alloys

Descriptive Note:

Final rept. 1 Oct 1991-31 Jan 1993

Corporate Author:

WYMAN-GORDON CO WORCESTER MA

Report Date:

1993-07-01

Pagination or Media Count:

80.0

Abstract:

Depleted uranium DU is currently the top-performing kinetic energy penetrator, followed closely but not matched by several tungsten heavy alloy variants. Because of the adverse environmental impact associated with DU, it is extremely desirable to determine a means of upgrading the ballistic performance of heavy alloys to a level at least comparable to that of DU. It is thought that the reason for the improved ballistic performance of DU-0.75 Ti alloy is embedded in its ability to self sharpen during armor penetration, and it is further postulated that this self-sharpening ability is due to the susceptibility of DU to adiabatic shear during penetration events. The contrasting inability of current tungsten heavy alloys to localize shear during penetration causes mushrooming at the head of the projectile, thus, decreasing the depth of penetration. Consequently, there is a great urgency to develop new tungsten alloys that will exhibit localized, unstable shear failure, and associated self sharpening during armor penetration. Tungsten heavy alloy, Alloy development, Mechanical properties, Adiabatic shear.

Subject Categories:

  • Properties of Metals and Alloys
  • Radioactivity, Radioactive Wastes and Fission Products
  • Ballistics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE