Innovative Methodologies for the Development of a High Strength, Anodize-Free Corrosion Resistant, Aerospace Aluminum Alloys

Award Information
Agency:
Department of Defense
Branch:
Navy
Amount:
$749,924.00
Award Year:
2011
Program:
SBIR
Phase:
Phase II
Contract:
N00014-11-C-0080
Agency Tracking Number:
O2-0989
Solicitation Year:
2009
Solicitation Topic Code:
OSD09-C02
Solicitation Number:
2009.1
Small Business Information
QuesTek
1820 Ridge Avenue, Evanston, IL, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
088176961
Principal Investigator
 Abhijeet Misra
 Sr. Materials Design Engi
 (847) 425-8233
 amisra@questek.com
Business Contact
 Raymond Genellie, Jr.
Title: Vice President - Operatio
Phone: (847) 425-8211
Email: rgenellie@questek.com
Research Institution
 Stub
Abstract
Lightweight, high-strength aluminum alloys are widely used for structural components of aircraft and ships. However all high-strength aluminum alloys, such as 7050-T74, are susceptible to stress corrosion cracking (SCC) and general corrosion in chloride environments, and the repair and maintenance of corroded components is a major cost driver. As a result, most aerospace aluminum alloys are anodized to enhance corrosion resistance. Unfortunately, anodization can reduce fatigue strength by as much as 40%, add cost, and produces a dangerous hazardous materials waste-stream. In the Phase I SBIR program QuesTek Innovations LLC successfully designed unique high-strength aluminum alloys with nearly 100% better SCC resistance, equivalent or better pitting resistance, and equivalent or better strength over baseline 7050-T74 alloy in the short-transverse direction. Under this Phase II SBIR program, QuesTek will focus on the optimization, scale-up, and coating process selection of the Phase I alloy design and identify target components for application. At the end of the Phase II program, QuesTek anticipates generating the alloy property data required to initiate a Phase III component level fabrication and qualification program. In the program QuesTek is partnering with OEMs who will help define the material and process requirement matrix, and ultimately lead the alloy implementation.

* information listed above is at the time of submission.

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