Fabrication of High-Strength Nanostructured Bulk Aluminum Alloys

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$100,000.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
W911NF-12-C-0030
Award Id:
n/a
Agency Tracking Number:
A112-092-0050
Solicitation Year:
2011
Solicitation Topic Code:
A11-092
Solicitation Number:
2011.2
Small Business Information
207 Dellwood St., Bryan, TX, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
141254701
Principal Investigator:
Robert P.E.
Vice President
(979) 822-5038
rbarber@shearform.com
Business Contact:
Karl Jr
President
(979) 693-4102
kthartwig@shearform.com
Research Institution:
Stub




Abstract
There is a need for better lightweight metal alloys for Department of Defense transportation vehicles. Such material will have extremely high strength and toughness, and could be used for improved armor and other vehicular structural components. We propose to fabricate three advanced extremely high strength aluminum alloys to address the need. To do this we will fabricate aluminum-manganese (Al-Mn), Al-zirconium (Al-Zr), and Al-Mn-Zr alloy powders by ball milling elemental powders to give grain sizes below 20 nm in the alloy. The alloy powders will then be consolidated by warm extrusion or spark plasma sintering or a combination of both, to bulk material with a grain size below 20 nm. The resulting materials are expected to have hardness above 3 GPa, a tensile ductility above 10 % elongation, and thermal stability to 330C. The alloy fabrication and processing parameters are expected to allow for scale-up to prototype size components with favorable economics for commercial manufacture.

* information listed above is at the time of submission.

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