Highly Corrosion Resistant Aluminum Alloys: Innovative Processing Methods to Enhanced Corrosion Resistance (e.g., layered structures, etc.)

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-09-M-0404
Agency Tracking Number: O091-C03-4041
Amount: $98,425.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: OSD09-C03
Solicitation Number: 2009.1
Small Business Information
1505, Bull Lea Road, Lexington, KY, 40511
DUNS: 807312678
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Alex Cho
 President
 (304) 541-1825
 alexcho_sp@hotmail.com
Business Contact
 Alex Cho
Title: President
Phone: (304) 541-1825
Email: alexcho_sp@hotmail.com
Research Institution
N/A
Abstract
Two different approaches will be investigated for producing aluminum alloys with a layer structure that have mechanical properties similar to Al 7050-T7 and Al 7075-T6 and greatly improved corrosion resistance. Layered aluminum alloys will be produced using the Novelis-Fusion™ casting process. This process is very cost effective and has been demonstrate on commercial products. The other approach is to use the spray metal forming process to apply a corrosion resistant aluminum alloy to a high strength aluminum alloy. Microstructure analysis and mechanical property and corrosion tests will be performed to characterize the materials. It is anticipated that these processes will produce layer aluminum structures that have properties comparable to 7050-T7, with a 3x improvement in corrosion fatigue and alloys that have the mechanical properties of 7075-T6 and a stress corrosion cracking threshold stress >75% of the alloy’s yield strength.

* Information listed above is at the time of submission. *

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