US2013177469A1PendingUtilityA1

Ferro-Alloys

41
Individually held — no corporate assignee on recordPriority: Jun 28, 2010Filed: Dec 21, 2012Published: Jul 11, 2013
Est. expiryJun 28, 2030(~3.9 yrs left)· nominal 20-yr term from priority
Inventors:James D. RuhlmanCharles ScherrerRandall W. Schudalla
C22C 38/00C22C 38/002C22C 38/12C22C 38/14C22C 35/005C22C 1/02
41
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Claims

Abstract

Methods comprising providing a composition comprising iron and a high melting point element; heating the composition to an elevated temperature up to about 3,500° F.; holding the composition at the elevated temperature for a time sufficient for the heat's temperature to stabilize; and allowing the composition to cool or solidify. Methods comprising providing a master alloy comprising iron and up to about 30% by weight of a high melting point element; and adding the master alloy to a heat of steel. Compositions comprising an alloy of iron and high melting point element in which the alloy is up to about 30% by weight of the high melting point element. Compositions comprising an alloy of iron and high melting point element having a substantially uniform microstructure.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method comprising:
 providing a composition comprising iron and a high melting point element;   heating the composition to an elevated temperature up to about 3,500° F.;   holding the composition at the elevated temperature for a time sufficient for the heat's temperature to stabilize; and   allowing the composition to cool or solidify.   
     
     
         2 . The method of  claim 1 , wherein the high melting point element is up to about 30% by weight of the composition. 
     
     
         3 . The method of  claim 1 , wherein the high melting point element is one or more of Tungsten (W), Niobium (Ni), Rhenium (Re), Osmium (Os), Tantalum (Ta), Iridium (Ir), Boron (B), Ruthenium (Ru), Hafnium (Hf), Technetium (Tc), Rhodium (Rh), Zirconium (Zr), Platinum (Pt), and Thorium (Th). 
     
     
         4 . The method of  claim 1 , wherein the time sufficient for the heat's temperature to stabilize is between about 1 and 10 hours. 
     
     
         5 . The method of  claim 1 , further comprising adding the master alloy to a heat of steel. 
     
     
         6 . A method comprising:
 providing a master alloy comprising iron and up to about 30% by weight of a high melting point element; and   adding the master alloy to a heat of steel.   
     
     
         7 . The method of  claim 6 , wherein the high melting point element is one or more of Tungsten (W), Niobium (Ni), Rhenium (Re), Osmium (Os), Tantalum (Ta), Iridium (Ir), Boron (B), Ruthenium (Ru), Hafnium (Hf), Technetium (Tc), Rhodium (Rh), Zirconium (Zr), Platinum (Pt), and Thorium (Th). 
     
     
         8 . A composition comprising an alloy of iron and high melting point element in which the alloy is up to about 30% by weight of the high melting point element. 
     
     
         9 . The composition of  claim 8 , wherein the high melting point element is one or more of Tungsten (W), Niobium (Ni), Rhenium (Re), Osmium (Os), Tantalum (Ta), Iridium (Ir), Boron (B), Ruthenium (Ru), Hafnium (Hf), Technetium (Tc), Rhodium (Rh), Zirconium (Zr), Platinum (Pt), and Thorium (Th). 
     
     
         10 . A composition comprising an alloy of iron and high melting point element having a substantially uniform microstructure. 
     
     
         11 . A composition comprising an alloy of iron and high melting point element having the high melting point element uniformly distributed throughout the microstructure of the composition. 
     
     
         12 . A composition comprising an alloy of iron and high melting point element having a near or complete absence of an elemental form of the high melting point element. 
     
     
         13 . A composition formed by the method of  claim 1 . 
     
     
         14 . A composition formed by the method of  claim 6 .

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