Alloys or metallic compositions – Nickel base – Chromium containing
Patent
1988-09-09
1991-01-01
Dean, Richard O.
Alloys or metallic compositions
Nickel base
Chromium containing
148410, 420445, 420447, 420448, 420451, C22C 1905
Patent
active
049816446
ABSTRACT:
Alloy compositions for nickel-base superalloys having the qualities of weldability, castability and forge-ability together with improved high temperature strength and rupture properties are disclosed. The weldability is improved by varying the Al, Ti, Nb and Ta content so as to insure that only the favorable .gamma." precipitates are formed in the alloy. The high temperature properties of the alloy compositions are optimized by controlling the content of the major alloying elements Co and Cr. Preferably the alloy is substantially free of Fe.
REFERENCES:
patent: 3046108 (1962-07-01), Eiselstein
H. L. Eiselstein, "Metallurgy of a Columbium-Hardened Nickel-Chromium-Iron Alloy", Huntington Alloy Products Div., The International Nickel Co., Inc., 1965, pp. 62-79.
E. L. Raymond, "Effect on Grain Boundary Denudation of Gamma Prime on Notch-Rupture Ductility of Inconel Nickel-Chromium Alloys X-750 and 718", Transactions of the Metallurgical Society of AIME, vol. 239, Sep. 1967, pp. 1415-1422.
P. S. Kotval, "Identification of the Strengthening Phase in `Inconel` Alloy 718", Transactions of the Metallurgical Society, vol. 242, Aug. 1968, pp. 1764-1765.
D. F. Paulonis et al., "Precipitation in Nickel-Base Alloy 718" Transactions of the ASM, vol. 62, 1969, pp. 611-622.
Robert R. Irving, "Alloy 718: The Workhorse of Superalloys", Iron Age, Jun. 10, 1981, pp. 77-81.
Davis Jr. James C.
Dean Richard O.
General Electric Company
Magee Jr. James
Rochford Paul E.
LandOfFree
Nickel-base superalloy systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nickel-base superalloy systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nickel-base superalloy systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1994924