Hot working high-chromium alloy
AssigneeInco Alloys International, Inc.
InventorsFrancis Sardovia Suarez, Donald Edward Camus, William Lawrence Mankins
Life of this patent
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Abstract
Hot working a nickel-chromium alloy that contains by weight percent, 42 to 65 chromium, 0.002 to 0.1 calcium, 0.002 to 0.1 magnesium, 0 to 2 aluminum, about 0 to 5 cobalt, 0 to 3 copper, 0 to 5 iron, 0 to 5 manganese, 0 to 3 molybdenum, 0 to 3 niobium, 0 to 2 silicon, 0 to 3 tantalum, 0 to 5 titanium, 0 to 5 tungsten, 0 to 5 vanadium, 0 to 1 zinc, 0 to 0.2 carbon 0 to 0.1 silver, 0 to 0.1 cerium, 0 to 0.1 phosphorus, 0 to 0.1 sulfur, less than 0.005 total boron, rare earths and zirconium and balance nickel and incidental impurities, at a temperature of at least 800.degree. C. improves formability for .alpha.-phase chromium alloys.
Claims7
A method for working nickel-chromium alloys comprising:
- a) providing an object consisting essentially of, by weight percent, over 43 to about 65 chromium, about 0.002 to 0.1 calcium, about 0.002 to 0.1 magnesium, less than about 0.005 total boron, rare earths and zirconium and balance nickel and incidental impurities;
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- b) hot working said object at a temperature of at least 800.degree. C. to alter the shape of said object into wire.
A method for working nickel-chromium alloys comprising:
- a) providing an object consisting essentially of, by weight percent, over 43 to about 65 chromium, about 0.002 to 0.1 calcium, about 0.002 to 0.1 magnesium, about 0 to 2 aluminum, about 0 to 5 cobalt, about 0 to 3 copper, about 0 to 5 iron, about 0 to 5 manganese, about 0 to 3 molybdenum, about 0 to 3 niobium, about 0 to 2 silicon, about 0 to 3 tantalum, about 0 to 5 titanium, about 0 to 5 tungsten, about 0 to 5 vanadium, about 0 to 1 zinc, about 0 to 0.2 carbon, about 0 to 0.1 silver, about 0 to 0.1 cerium, about 0 to 0.1 phosphorus, about 0 to 0.1 sulfur, less than about 0.005 total boron, rare earths and zirconium and balance nickel and incidental impurities;
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- b) hot working said object at a temperature of at least 800.degree. C. to alter shape of said object into wire.
A method for working nickel-chromium alloys comprising:
- a) providing an object consisting essentially of, by weight percent, over 43 to about 55 chromium, about 0.002 to 0.05 calcium, about 0.002 to 0.05 magnesium, about 0 to 1.5 aluminum, about 0 to 3 cobalt, about 0 to 2 copper, about 0 to 3 iron, about 0 to 3 manganese, about 0 to 2 molybdenum, about 0 to 2 niobium, about 0 to 1.5 silicon, about 0 to 2 tantalum, about 0 to 3 titanium, about 0 to 3 tungsten, about 0 to 3 vanadium, about 0 to 0.7 zinc, less than 0.0008 boron, about 0 to 0.15 carbon, about 0 to 0.07 silver, about 0 to 0.07 cerium, about 0 to 0.07 phosphorus, about 0 to 0.07 sulfur, less than about 0.004 total boron, rare earths and zirconium and balance nickel and incidental impurities;
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- b) hot working said object at a temperature of at least 800.degree. C. to alter shape of said object into wire.
Dependencies are inferred from the claim text.