Heat treated, spray formed superalloy articles and method of mak

Details Heat treated, spray formed superalloy articles and method of mak Heat treated, spray formed superalloy articles and method of mak

1998-05-12

2000-05-16

Yee, Deborah

Metal treatment

Stock

Nickel base

148410, 148555, 148675, 75245, 427456, C22C 1903, C22C 1905, C22C 110

Patent

active

060632127

ABSTRACT:
Heat treated, spray formed articles are disclosed which exhibit crack growth rates and resistance to stress rupture comparable to corresponding, forged articles. The articles are first formed by depositing molten metal droplets, e.g., of IN 718, on a substrate to form a rough article. The articles are HIP'ed and then processed by heat treating, which includes solution, stabilization and precipitation heat treatments. The resultant articles have fine average grain sizes compared to forged and conventionally heat treated material, as well as yield and tensile strengths comparable to forged material. Importantly, the articles also exhibit low crack growth rates and stress rupture resistance, e.g., comparable to forged material, and have an isotropic microstructure. The articles can be used in place of forged articles.

REFERENCES:
patent: 3670400 (1972-06-01), Singer
patent: 3970249 (1976-07-01), Singer
patent: 4064295 (1977-12-01), Singer
patent: 4224356 (1980-09-01), Singer
patent: 4420441 (1983-12-01), Singer
patent: 4515864 (1985-05-01), Singer
patent: 4579168 (1986-04-01), Singer
patent: 4830084 (1989-05-01), Singer
patent: 4983427 (1991-01-01), Sansome et al.
patent: 5106266 (1992-04-01), Borns et al.
patent: 5173339 (1992-12-01), Singer
patent: 5245153 (1993-09-01), Singer et al.
patent: 5337631 (1994-08-01), Singer et al.
patent: 5476222 (1995-12-01), Singer et al.
patent: 5516586 (1996-05-01), Singer et al.
patent: 5584948 (1996-12-01), Huron
"Spray Forming Could Cut Engine Component Cost", by Michael O. Lavitt, Reprinted from Aviation Week & Space Technology, Mar. 17, 1997, Copyright by The McGraw-Hill Companies, Inc.
Society of Automotive Engineers, Inc., Aerospace Material Specification, AMS 5663H "Nickel Alloy, Corrosion and Heat Resistant, Bars, Forgings, And Rings" Issued Sep., 1965, Revised Jan., 1996.
"Manufacturing With the Spraycast Process", by Dr. Neil Paton, Kim Bowen, Dr. Thomas Tom and Tony Cabral, Foundry Management & Technology, Oct. 1997, Copyright.COPYRGT.1997 Penton Publishing, Inc., Cleveland, Ohio 44114.
Fiedler, H.C., Sawyer, T.F., Kopp, R.W.and Leatham, A.G., Journal of Metals, vol. 39, No. 8, Aug. 1, 1987, The Spray Forming of Superalloys, pp. 28-33.
Benz, M.G., Sawyer, T.F., Carter, W.T., Zabala, R.J., and Dupree, P.L., Powder Metallurgy, vol. 37, No. 3, Jan. 1, 1994, Nitrogren in spray formed superalloys, pp. 213-218.
Butzer, Greg and Bowen, Kim, Advanced Materials and Processes, vol. 153, No. 3, Mar. 1, 1998, Spray Forming Aerospace Alloys, pp. 21-23.

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