Titanium aluminide based alloy

Abstract

The invention concerns alloys made through the use of melting and powdered metallurgical techniques on the basis of titanium aluminides with an alloy composition of Ti-z Al-y Nb where 44.5 Atom % ≦z≦47 Atom %, 44.5 Atom % ≦z≦45.5 Atom %, and 5 Atom % ≦y≦10 Atom % with possibly the addition of B and/or C at a content between 0.05 Atom % and 0.8 Atom %. Said alloy is characterized in that it contains a molybdenum (Mo) content ranging between 0.1 Atom % to 3.0 Atom %.

1 . An alloy made on the basis of titanium aluminide through the use of melting and powdered metallurgical techniques the alloy comprising Ti-z Al-y Nb where 44.5 Atom % is ≦z≦47 Atom %, and where 5 Atom % is ≦y≦10 Atom %, and the alloy containing molybdenum (Mo) in between 0.1 Atom % to 3 Atom % and defining a β-phase present up to a temperature of about 1,320 degrees C. 
     
     
         2 . An alloy as defined by  claim 1  wherein 44.5 Atom % is ≦z≦45.5 Atom %. 
     
     
         3 . An alloy on the basis of titanium aluminide made with the use of melting and powdered metallurgical techniques the alloy comprising Ti-z Al-y Nb-x B where 44.5 Atom % is ≦z≦47 Atom % and where 5 Atom % is ≦y≦10 Atom % and 0.05 Atom % is ≦x≦0.8 Atom % and wherein the alloy contains molybdenum (Mo) between 0.1 Atom % to 3 Atom % and defining a β-phase present up to a temperature of about 1,320 degrees C. 
     
     
         4 . An alloy as defined by  claim 3  wherein 44.5 Atom % is ≦z≦45.5 Atom %. 
     
     
         5 . An alloy on the basis of titanium aluminide made with the use of melting and powdered metallurgical techniques the alloy comprising Ti-z Al-y Nb-w C where 44.5 Atom % is ≦z≦47 Atom %, and where 5 Atom % is ≦y≦10 Atom % and 0.05 Atom % is ≦w≦0.8 Atom %, and wherein the alloy contains molybdenum (Mo) between 0.1 Atom % to 3 Atom % and defining a β-phase present up to a temperature of about 1,320 degrees C. 
     
     
         6 . An alloy as defined by  claim 5  wherein 44.5 Atom % is ≦z≦45.5 Atom %. 
     
     
         7 . An alloy as defined by  claim 5  wherein the alloy contains molybdenum between 0.5 Atom % to 3 Atom %. 
     
     
         8 . An alloy on the basis of titanium aluminide made with the use of melting and powdered metallurgical techniques the alloy comprising Ti-z Al-y Nb-x B-w C where 44.5 Atom % is ≦z≦47 Atom %, and where 5 Atom % is ≦y≦10 Atom % and 0.05 Atom % is ≦x≦0.8 Atom % and 0.05 Atom % is ≦w≦0.8 Atom %, and wherein the alloy contains molybdenum (Mo) between 0.1 Atom % to 3 Atom % and defining a β-phase present up to a temperature of about 1,320 degrees C. 
     
     
         9 . An alloy as defined by  claim 8  wherein 44.5 Atom % ≦z≦45.5 Atom %. 
     
     
         10 . A construction component made from an alloy according to  claim 1 . 
     
     
         11 . A construction component made from an alloy according to  claim 3 . 
     
     
         12 . A construction component made from an alloy according to  claim 5 . 
     
     
         13 . A construction component made from an alloy according to  claim 8 .