Accession Number:

ADA329151

Title:

Investigation of Titanium Alloys under Biaxial Impact Loading.

Descriptive Note:

Final technical rept. 25 Aug 96-7 Jul 97,

Corporate Author:

NORDMETALL GBR STOLLBERG (GERMANY)

Personal Author(s):

Report Date:

1997-07-07

Pagination or Media Count:

30.0

Abstract:

Ti-6Al-4V titanium alloy was subjected to three heat treatment conditions. Ballistic tests at ARL have shown differences in the ballistic performance, if annealed above the beta transus temperature. Mechanical tests under uniaxial compression as well as biaxial compression shear-stress states and high strain rates in the range of 10exp 2s were performed at TU Chemnitz. Additionally, quasistatic compression tests were performed. Scanning electron microscopy was used to correlate deformation structures of shear cracks from ballistic tests with that of laboratory shear specimens. Indications of interdependencies between the ballistic performance and mechanical behavior under compressionshear loading of different heat treated titanium targets were noted, e. g. dynamic strength and sensitivity to adiabatic shear failure.

Subject Categories:

  • Properties of Metals and Alloys
  • Mechanics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE