Radiolucent molybdenum-containing master alloys

Abstract

The present invention relates to a method for producing a Mo-containing master alloy that is radiolucent. In accordance with the present invention, two elements may be used to reduce the density of a Mo-containing master alloy enough to make the master alloy radiolucent, aluminum or titanium. Aluminum is required in the particular titanium alloy in the same weight ratio as Mo and cannot be used to decrease the master alloy density without skewing the ratio. Since the master alloy is being added to a titanium melt, much more titanium can be used to reduce the master alloy density.

What is claimed is: 
     
         1 . A method for reducing the density of a molybdenum-containing master alloy which comprises adding to said alloy an amount effective for the purpose of titanium, wherein the master alloy is rendered transparent to x-rays. 
     
     
         2 . The method as recited in  claim 1 , wherein the alloy is in a form of an ingot. 
     
     
         3 . The method as recited in  claim 2 , wherein the ingot has a weight of about 120 pounds. 
     
     
         4 . The method as recited in  claim 2 , wherein the ingot has a weight of about 100 pounds. 
     
     
         5 . The method as recited in  claim 1 , wherein the alloy is used for disks, blades and seals of turbine engines. 
     
     
         6 . The method as recited in  claim 1 , wherein the alloy is used for airframe parts. 
     
     
         7 . The method as recited in  claim 1 , wherein the composition is produced by melting pure titanium with the alloy.