Alloys or metallic compositions – Ferrous – Over 10 percent nickel containing
Patent
1989-01-30
1990-03-27
Yee, Deborah
Alloys or metallic compositions
Ferrous
Over 10 percent nickel containing
420 97, 148335, 148328, 148330, C22C 3850
Patent
active
049118846
ABSTRACT:
This invention relates to corrosion resistant, austenitic, non-magnetic alloys. The alloys contain about 32 to 38% nickel, about 3 to 7% chromium, about 3 to 5% titanium, about 0.3 to 1.5% aluminum, about 0.5 to 1.5% molybdenum, an effective amount of vanadium, about 0.005 to 0.02% boron, up to about 0.02% carbon, and the balance substantially iron. The alloys are controlled temperature hot rolled and age annealed to provide strain hardening and precipitation strengthening to achieve yield strength objectives established for retaining rings in new high capacity generators. Yield strengths of at least about 200 ksi can be produced by the alloys of this invention making them suitable for use in new high capacity generators.
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Davis Jr. James C.
General Electric Company
Magee Jr. James
McGinness James E.
Yee Deborah
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