Improving the Performance of Navy Helicopter Masts by Using Corrosion-Resistant, Ultra-High-Strength Steel

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$749,832.00
Award Year:
2011
Program:
SBIR
Phase:
Phase II
Contract:
N68335-11-C-0079
Agency Tracking Number:
N091-031-0330
Solicitation Year:
2009
Solicitation Topic Code:
N091-031
Solicitation Number:
2009.1
Small Business Information
QuesTek Innovations LLC
1820 Ridge Avenue, Evanston, IL, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
088176961
Principal Investigator:
James Wright
Director of Product Devel
(847) 425-8225
jwright@questek.com
Business Contact:
Raymond Genellie
VP Operations
(847) 425-8211
rgenellie@questek.com
Research Institution:
Stub




Abstract
QuesTek will evaluate the feasibility of using Ferrium S53 as the main rotor shaft mast material in Navy helicopters to eliminate the need for toxic cadmium plating, reduce weight and increase toughness (durability), fatigue resistance, general corrosion resistance and SCC resistance. The alloys currently used for Navy helicopter masts (such as 4340 or 9310) provide high strength but offer limited corrosion resistance, and are typically coated (and re-coated during overhaul) with toxic cadmium plating. S53 is a new ultra-high-strength, corrosion-resistant steel developed by QuesTek with its proprietary Materials by Design development process. S53 is commercially available from two U.S.-based suppliers and has received industry certifications, including SAE (AMS5922) and MMPDS approvals. In applying S53 to rotorshaft masts, QuesTek will further develop the surface hardening process developed during the Phase I effort to accommodate gears, splines, bearings and other hard contact points. QuesTek will also produce demonstration components that will be manufactured with the inclusion of the new surface hardening process.

* information listed above is at the time of submission.

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