Alloy composition

Abstract

A molybdenum based alloy composition including between 8.5% and 9.5% hafnium and 0.15% and 0.25% carbon

1 . An alloy composition comprising molybdenum, wherein the composition comprises between 7% and 14% hafnium and 0.05% and 0.3% carbon. 
     
     
         2 . An alloy composition according to  claim 1 , wherein the composition comprises between 8.5% and 9.5% hafnium. 
     
     
         3 . An alloy composition according to  claim 1 , wherein the composition comprises between 0.15% and 0.25% carbon. 
     
     
         4 . An alloy composition according to  claim 1  further comprising between 5% and 10% niobium. 
     
     
         5 . An alloy composition according to  claim 1  further comprising an amount less than 1.5% titanium. 
     
     
         6 . An alloy composition according to  claim 1  further comprising between 0.5% and 2% zirconium. 
     
     
         7 . An alloy composition according to  claim 1  further comprising between 0.1 and 5% tungsten. 
     
     
         8 . An alloy according to  claim 1  comprising an amount less than 17% tantalum. 
     
     
         9 . An alloy according to  claim 1  wherein the balance of the composition comprises molybdenum. 
     
     
         10 . An alloy composition according to  claim 1 , wherein the further comprises incidental impurities. 
     
     
         11 . An alloy composition according to  claim 1 , wherein the alloy consists essentially only of molybdenum, niobium, titanium, carbon, zirconium, hafnium, tungsten, tantalum and incidental impurities. 
     
     
         12 . An alloy composition according to  claim 1 , wherein the composition further comprises oxygen or metal oxides. 
     
     
         13 . An alloy according to  claim 1  having an ultimate tensile strength of between approximately 680 MPa and 760 MPa at a temperature of 1,000° C.