Effect of Annealing Temperature on the Ballistic Limit Velocity of Ti-6A1-4V ELI
Final rept. 1993-1996
ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
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Although titanium alloys have been used successfully in aircraft for many years, the relatively high cost of titanium coupled with the limited information on its ballistic properties has prevented widespread use in ground vehicles. In order to provide this ballistic information to vehicle designers, the U.S. Army Research Laboratory ARL and the RMI Titanium Company RMI performed a joint research program to evaluate the effect of annealing temperature on Ti-6A1-4V alloy, extra-low interstitial ELI grade, currently specified by MIL-A-46077D for armor use for the U.S. Army. RMI provided the plates, performed the annealing, and collected mechanical and microstructural information. ARL then tested the plates with the 20-mm fragment-simulating projectile FSP in order to determine the response of limit velocity as annealing temperature was varied from 732-1,038 deg C. This report summarizes information presented at ASM International Aeromat 96 Conference in Dayton, OH, in June 1996 and at the 16th International Symposium on Ballistics in San Francisco, CA, in September 1996.
- Inorganic Chemistry