Alloys or metallic compositions – Nickel base – Chromium containing
Patent
1982-09-22
1985-09-24
Dean, R.
Alloys or metallic compositions
Nickel base
Chromium containing
148404, 148410, 420445, C22C 1905
Patent
active
045432350
ABSTRACT:
An improved eutectic superalloy composition is described. The eutectic composition upon solidification forms a gamma matrix, containing a substantial quantity of particles of the gamma prime phase, and containing about 12% by volume of aligned continuous chromium carbide fibers (Cr.sub.3 C.sub.2). Material of this composition is provided with significantly improved mechanical properties and surface stability through the addition of approximately one atomic percent of the material selected from the group consisting of manganese, technetium and rhenium. Directionally solidified articles of this composition have utility as gas turbine engine components.
REFERENCES:
patent: 3124452 (1964-03-01), Kraft
patent: 3554817 (1971-01-01), Thompson
patent: 3564940 (1971-02-01), Thompson et al.
patent: 3671223 (1972-06-01), Thompson et al.
patent: 3793010 (1974-02-01), Lemkey et al.
patent: 4012241 (1977-03-01), Lemkey
patent: 4111723 (1978-09-01), Lemkey
"The Influence of Off-Axis Reinforcement on the Tensile Strength of an Ni-Al-Cr-C Eutectic Composite", by G. J. May, Journal of Materials Science 10 (1975), 77-82.
"The Fatigue Behavior of an Aligned Ni-Al-Cr-C Eutectic Alloy", by G. J. May, Metallurgical Transactions, vol. 6A, May 1975.
"Creep Behavior of a Ni-Ni.sub.3 Al-Cr.sub.3 C.sub.2 Eutectic Composite", by Bullock et al., Acta Metallurgica, vol. 25, pp. 333-344, 1977.
"The Contribution of Fibre Reinforcement to the Tensile and Creep Strengths of .gamma.-.gamma.'-Cr.sub.3 C.sub.2 Eutectic Composite", by Miles et al., Published in the Proceedings of the Second Conference on In Situ Composites, 1976.
"Effects of Alloying Additions and High Rate Solidification on the Mechanical and Oxidation Behavior of the Directionally Solidified .gamma.-.gamma.'-Cr.sub.3 C.sub.2 Eutectic", by Bullock et al., Published in the Proceedings of the Third Conference on In Situ Composites, 1979.
Lemkey Franklin D.
Machlin Irving
Dean R.
Sohl Charles E.
United Technologies Corporation
LandOfFree
Eutectic superalloy compositions and articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Eutectic superalloy compositions and articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eutectic superalloy compositions and articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1613340