Improved Aluminum Alloys for Armored Vehicles (Army)
Abstract
Test improved aluminum armor alloys against current fielded aluminum alloys on armored vehicles for incorporation into military vehicle specifications. Possible candidates are the Ground Combat Vehicle (GVC), the Joint Light Tactical Vehicle (JLTV), the Armored Multi-Purpose Vehicle (AMPV), and foreign military sales M2 Bradley systems. This project will evaluate aluminum alloys AA7017-T6, AA2139-T8, and AA2195-BT. The project will also evaluate the weld-ability of the alloys for verification of improved ballistics and structural performance versus current armors. In addition to improved mechanical properties, preliminary data indicates these alloys also display improved resistance to stress corrosion cracking. The improved ballistics and resistance to stress corrosion cracking (SCC) make AA7017 a promising replacement for current corrosion prone aluminum alloys while maintaining good weld ability. The AA2195 and AA2139 alloys deliver increased protection levels beyond the current armor alloys, but are only approved for use as bolt-on or appliqué supplemental armors. Further verifications are needed to achieve full weldable status.
Document Details
- Document Type
- Accomplishment
- Publication Date
- Oct 01, 2014
- Source ID
- d969d69ffdbc2090bb9a5ebda5cadce1