Replacement for Hexavalent Chromium Conversion Coatings for Magnesium and Zinc-Nickel

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$98,972.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
FA8117-09-C-0008
Award Id:
93175
Agency Tracking Number:
F083-226-0271
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2241 Park Place Suite C, Minden, NV, 89423
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
835541335
Principal Investigator:
Danielle Rosenquist
Director of Product Devel
(775) 782-8324
drosenquist@metalast.com
Business Contact:
David Semas
CEO
(775) 782-8324
dsemas@metalast.com
Research Institution:
n/a
Abstract
The European Union''s RoHS and WEE Directives mandated the elimination of the carcinogenic, hexavalent chromium coatings for metals, including magnesium and zinc-nickel plated substrates. The purpose of this project is to find chemistry that will meet requirements of industry performance specifications and of the mandate. METALAST intends to explore trivalent chromium in conjunction with two other components to build a corrosion resistant, adhesive, environmentally-friendly coating for Zn-Ni plated steel and magnesium substrates. METALAST is planning to utilize various techniques for quantitative and qualitative observation of corrosion, surface energy, and other properties that the solutions impart to the substrates. The trivalent chemistry is expected to impart similar anti-corrosion characteristics as the proven, hexavalent chromium technology. The other two components are for increasing the coating thickness and improving thermal stability. Methodology for testing will include EIS, SEM/EDX, OCP, dyne analysis, and chemical dissolution, salt spray, and potentiodynamic polarization testing. In doing so, the objectives for performing the research are to determine which components of the intended formula are most influential to corrosion and adhesive behavior, and at which operating parameters, as well as determine whether the formulas, will meet common specifications of the industry the METALAST intends to pursue upon commercialization. BENEFIT: Military, aerospace, aviation and commercial industries requiring hexavalent chromium on Zinc-Nickel and magnesium alloys would most likely change or alter their respective specifications and require a trivalent chromium product. Most manufacturers who require chromate conversion on their parts will opt for trivalent chromium for compliance purposes.

* information listed above is at the time of submission.

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