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Corrosion Inhibiting Surface Treatment for Uncoated Marine-Grade Aluminum Alloys

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00024-13-C-4068
Agency Tracking Number: N112-136-0689
Amount: $736,198.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N112-136
Solicitation Number: 2011.2
Solicitation Year: 2011
Award Year: 2013
Award Start Date (Proposal Award Date): 2013-09-30
Award End Date (Contract End Date): 2015-09-30
Small Business Information
12345 W. 52nd Ave.
Wheat Ridge, CO -
United States
DUNS: 181947730
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jeannine Elliott
 Principal Chemical Engine
 (303) 261-1142
Business Contact
 John Wright
Title: Chief Technology Officer
Phone: (303) 940-2300
Research Institution

Marine-grade aluminum alloys (5XXX-series) are increasingly being used in naval combatants because they have high strength and high corrosion resistance. In order to decrease weight, these corrosion resistant marine-grade aluminum alloys are not painted with the conventional primer and low solar absorbance topcoats. Although 5XXX series wrought aluminum alloys generally exhibit excellent corrosion resistance, exposure to moderately elevated temperature (which is unavoidable) can cause sensitization. Once sensitized the aluminum is susceptible to intergranular forms of corrosion including intergranular stress corrosion cracking (SCC). Stress corrosion cracking is particularly threatening because the stresses sufficient for crack initiation and crack growth can be far below the stresses required for normal gross failure. The goal of this SBIR project is to develop a new protective surface treatment for currently uncoated marine-grade aluminum alloys. TDA Research, Inc has developed novel corrosion inhibitors to mitigate stress corrosion cracking in senstizied Al5XXX series aluminum. In the Phase I project we demonstrated the feasibility using these corrosion inhibitors in a thin protective surface treatment. In the Phase II program we will optimize the surface treatment formulation so that it meets all Navy requirements and is ready to be qualified for military acquisition.

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

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