Nickel aluminide intermetallic alloys for tooling applications

Details Nickel aluminide intermetallic alloys for tooling applications Nickel aluminide intermetallic alloys for tooling applications

1997-08-29

2000-05-23

Yee, Deborah

Alloys or metallic compositions

Nickel base

Chromium containing

420460, 148429, 148427, 148409, 148410, 148555, 148677, 148675, C22C 1903, C22F 110

Patent

active

060662913

ABSTRACT:
Castings based on the nickel aluminide intermetallic alloy IC-221M were melted and poured with an addition of enough molybdenum to bring its concentration to 5 weight %. This resulted in a minimization or elimination of the nickel-zirconium eutectic phase in the dies machined and prepared from these castings. The benefit of eliminating or minimizing the nickel zirconium eutectic phase with the addition of measurable amounts of molybdenum (Mo) to the nickel aluminide (Ni.sub.3 Al) alloy is the increase in the useful service life of the tooling made from it; thus providing the advantages of increased productivity, enhanced quality and reduced costs in a manufacturing setting. Heat treatment of the dies machined and prepared from these castings was also undertaken. The heat treatment regimen includes solution treatment at 2100.degree. F. for 24 hours and aging from between 1150.degree. F. and 1300.degree. F. for between 12 to 24 hours. The benefit of heat treating the dies is the increase in the mechanical properties and hence the service life of the tooling made from it.

REFERENCES:
patent: 5108700 (1992-04-01), Liu
patent: 5167732 (1992-12-01), Naik
patent: 5824166 (1998-10-01), McDonald
Orth J.E. et al: "Commercial Casting of Nickel Aluminide Alloys", Advanced Materials & Processes. (Inc. Metal Progress)., vol. 148, No. 5, Nov. 1995, pp. 33-34, XP002087263 Metals Park, Ohio, US.
Deevi et al: "Proceedings of the International Symposium on Nickel and Iron Aluminides: Processing, Properties and Applications", 1997, pp. 387-392, ASM Inter., Materials Park, Ohio, US XP002087265.
Sahoo M. et al: "Permanent Mold Applications of Nickel Aluminide (Ni3A1)" p. 392, right-hand col., paragraph 2.
Sikka V.K. "Commercialization staus of Ni3A1-Based alloys" Review: Material Resources Soc, Symposium Proceedings, (Oak Ridge National Laboratory, ISSN 0272-9172, 1997, pp. 15-27, XP002087264 Oak Ridge, TN, US.
"A DS Casting Ni.sub.3 Al Base Superalloy for Gas Turbine Blades and Vanes", Y.F. Han, S.H. Li, S. Ma, Y.N. Tan, Institute of Aeronautical Materials, Beijing 100095, China; M.C. Chaturvedi, Department of Mechanical and Industrial Engineering, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2, The Minerals, Meals & Materials Society .COPYRGT.1992.
"Tech Spotlight, Commercial Casting of Nickel Aluminide Alloys", J.E. Orth and V.K. Sikka, Advanced Materials & Processes, Nov. 1995, p. 33.
"Intermetallic Compounds As Engineering Materials", Osamu Izumi, Tohoku University, Sendai, Japan, The Minerals, Metals & Materials Society .COPYRGT.1992.

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