Stock material or miscellaneous articles – Composite – Of metal
Patent
1992-10-13
1996-07-23
Walsh, Donald P.
Stock material or miscellaneous articles
Composite
Of metal
148675, 427585, 427532, 416241B, B32B 1504
Patent
active
055387969
ABSTRACT:
A coated article is prepared by melting and casting an article substrate formed of a nickel-base superalloy. The article substrate is heated in a hydrogen-containing atmosphere at a temperature of at least 2000.degree. F. for a period sufficient to desulfurize the substrate to a sulfur content of less than about 1 part per million. Optionally, an aluminum-oxide environmental coating is provided overlying the substrate. A ceramic thermal barrier coating is applied overlying the substrate. Significantly, there being no bond coat applied to the substrate prior to the application of the thermal barrier coating.
REFERENCES:
patent: 3544348 (1970-12-01), Boone et al.
patent: 3581491 (1971-06-01), Bornstein et al.
patent: 3853540 (1974-12-01), Schlatter et al.
patent: 3928026 (1975-12-01), Iecht et al.
patent: 4142023 (1979-02-01), Bornstein et al.
patent: 4152223 (1979-05-01), Wallace et al.
patent: 4530720 (1985-07-01), Moroishi et al.
patent: 4626408 (1986-12-01), Osozawa et al.
patent: 4895201 (1990-01-01), DeCrescente et al.
patent: 5034284 (1991-07-01), Bornstein et al.
patent: 5262245 (1993-11-01), Ulion et al.
patent: 5346563 (1994-09-01), Allen et al.
"Scale Adherence Effects in Oxidation and Sulfidation"--M. A. DeCrescencte and N. S. Bornstein--NASA Report NAS 23-27, Nov. 1990.
"The Effect of Indigenous Sulfur on the High Temperature Oxidation Performance of the Chromia-forming Alloy Ni-40 Wt. % Cr"--J. G. Smeggil, The Minerals, Metals & Materials Society, 1989.
"The Effect of Sulfur Removal on Al.sub.2 O.sub.3 Scale Adhesion"--James L. Smialek, The Minerals, Metals & Materials Society, 1989.
"Effect of Sulfur Removal on Scale Adhesion"--B. K. Tubbs and J. L. Smialek, The Minerals, Metals & Materials Society, 1989.
"Study to Demonstrate Superior Oxidation Resistance of Aluminide Coatings"--N. S. Bornstein, Report R90-917552-1 (Final Report to Naval Air Development Center 1989).
Connor William B.
Murphy Wendy H.
Nagaraj Bangalore A.
Schaffer Jon C.
Vakil Himanshu B.
General Electric Company
Hess Andrew C.
Jenkins Daniel
Narciso David L.
Walsh Donald P.
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