Development of graded composition CoCrAlY (+ Pt) sputtered coatings

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5873369

Patten, J. W.; Moss, R. W.; Hays, D. D.; Fairbanks, J. W.

Progress is reported in the development of sputter deposited CoCrAlY-type coatings with Cr and Al concentration gradients through the coating thickness. The objective is to investigate the potential of high Cr coating surface compositions, gradients in Cr and Al composition, and Pt underlayers or graded Pt additions for significantly enhancing lifetimes of gas turbine engines operating on coal-derived liquid (and other alternative) fuels. Sputter coated burner rig test pins representing 15 different combinations of processing variables (including preoxidation heat treatment) sputter coated gas turbine first-stage blades with three different heat treatments, and several sputter coated fluidized bed turbine vanes are discussed along with testing status of these components.

• Research Organization: Battelle Pacific Northwest Labs., Richland, WA (USA); Department of Energy, Washington, DC (USA). Div. of Fossil Fuel Utilization
• DOE Contract Number: EY-76-C-06-1830
• OSTI ID: 5873369
• Report Number(s): PNL-SA-7888; CONF-790749-3
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104 -- Fossil-Fueled Power Plants-- Components
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
ALUMINIUM ALLOYS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COBALT ALLOYS
CORROSION
CORROSION RESISTANCE
CORROSIVE EFFECTS
DEPOSITION
ELEMENTS
GAS TURBINES
HEAT TREATMENTS
INCONEL ALLOYS
MACHINERY
METALS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NONMETALS
PLATINUM
PLATINUM ADDITIONS
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
PLATINUM METALS
SPUTTERING
SUBSTRATES
SULFUR
SURFACE COATING
TRANSITION ELEMENTS
TURBINE BLADES
TURBINES
TURBOMACHINERY
VANADIUM
YTTRIUM ALLOYS