High strength oxidation resistant nickel base alloys

Details High strength oxidation resistant nickel base alloys High strength oxidation resistant nickel base alloys

1976-04-01

1977-04-26

Dean, R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

148 2, 148 115N, 148 127N, 148 32, 148 325, C22C 1905

Patent

active

040199002

ABSTRACT:
High strength oxidation resistant nickel base alloys are disclosed, said alloys consisting essentially of from 2 to 6% aluminum, 1 to 6% chromium, 0.5 to 4% silicon, 5 to 20% cobalt, 0.03 to 0.30% carbon, 0.005 to 0.25% magnesium, balance nickel. The alloys may optionally include 0.002 to 0.05% boron, 0.002 to 0.05% zirconium, up to 15% iron, up to 1% manganese and up to 1% of an element selected from the group consisting of Rare Earth elements. The alloys exhibit a high resistance to oxidation deterioration and good mechanical properties at elevated temperatures.

REFERENCES:
patent: 3810754 (1974-05-01), Ford et al.

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