Compositions: coating or plastic – Coating or plastic compositions – Corrosion inhibiting coating composition
Patent
1995-03-28
1996-12-10
Green, Anthony
Compositions: coating or plastic
Coating or plastic compositions
Corrosion inhibiting coating composition
420437, 420438, 420445, 420446, 420447, 420448, 420449, 420450, 4272481, 4273831, 4273833, 4273837, 427455, 427456, 427576, 428457, C09D 508, B32B 1504, C22C 1907
Patent
active
055826350
ABSTRACT:
A protective coating resistant to corrosion at medium and high temperatures is applied on a nickel-based or cobalt-based superalloy component. The protective coating essentially consists of the following elements (in percent by weight): 25 to 40% nickel, 28 to 32% chromium, 7 to 9% aluminum, 1 to 2% silicon, 0.3 to 1% of at least one reactive element of the rare earths, at least 5% cobalt; and impurities, as well as selectively from 0 to 15% of at least one of the elements of the group consisting of rhenium, platinum, palladium, zirconium, manganese, tungsten, titanium, molybdenum, niobium, iron, hafnium, and tantalum. The total share of the elements of the group is from 0 to a maximum of 15% and a remainder of at least 5% cobalt. The component and the coating applied thereon have a ductile brittle transition temperature below 500.degree. C.
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patent: 4034142 (1977-07-01), Hecht
patent: 4093476 (1978-06-01), Boesch
patent: 4346137 (1982-08-01), Hecht
patent: 4451299 (1984-05-01), Smeggil et al.
patent: 4764225 (1988-08-01), Shanhat et al.
Czech Norbert
Schmitz Friedhelm
Green Anthony
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
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