Improved Threaded Fastener Coatings for Turbine Engine Applications

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 20257
Amount: $79,394.00
Phase: Phase I
Program: SBIR
Awards Year: 1993
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
4401 Dayton-xenia Road, Dayton, OH, 45432
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. Rabi S. Bhattacharya
 (513) 426-6900
Business Contact
Phone: () -
Research Institution
N/A
Abstract
Threaded fasteners used in turbine engine experience seizing/galling problems due to exposure at high temperature, corrosive environment and vibration. A research program is proposed that includes determination of the mode of failure of the currently used fastener-coating systems, and evaluation of novel coating materials and processes under simulated service conditions. A preliminary selection of coating materials based on the experience of an engine manufacturer is proposed. Initial screening of proposed coating materials will be conducted by using sputtered coatings. Other less-sophisticated methods will be investigated for coatings selected from sputtering experiments. The coated fasteners will be assembled and exposed to high temperature and vibration using the existing test facilities at Pratt and Whitney. A realistic screening test incorporating the environmental engine condition of temperature and vibration will be developed in Phase I in collaboration with Pratt and Whitney.

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

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