Invention Grant
- Patent Title: Aluminum alloys having improved ballistics and armor protection performance
- Patent Title (中): 铝合金具有改进的弹道和防护性能
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Application No.: US13436163Application Date: 2012-03-30
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Publication No.: US08747580B1Publication Date: 2014-06-10
- Inventor: Dustin M. Bush , Ian Murray , Roberto J. Rioja , Ralph R. Sawtell
- Applicant: Dustin M. Bush , Ian Murray , Roberto J. Rioja , Ralph R. Sawtell
- Applicant Address: US PA Pittsburgh
- Assignee: Alcoa Inc.
- Current Assignee: Alcoa Inc.
- Current Assignee Address: US PA Pittsburgh
- Agency: Greenberg Traurig, LLP
- Main IPC: C22F1/053
- IPC: C22F1/053

Abstract:
New 7XXX alloys having improved ballistics performance are disclosed. The new alloys generally are resistant to armor piercing rounds at 2850 fps, resistant to fragment simulated particles at 2950 fps, and are resistant to spalling. To achieve the improved ballistics properties, the alloys are generally overaged so as to obtain a tensile yield strength that is (i) at least about 10 ksi lower than peak strength and/or (ii) no greater than 70 ksi.
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