Abstract: A master alloy for producing titanium-based alloys with high molybdenum content and capable of ensuring the solution and distribution of the molybdenum in the titanium based alloy consists essentially of 25 through 36% by weight molybdenum, 15 to 18% by weight vanadium, up to about 7% by weight titanium, the balance aluminum and wherein the molybdenum content is at least 1.4 times the vanadium content and the melting point is at most 1500.degree. C.

Abstract: A master alloy of the following composition:11 to 13% by weight tin,11 to 13% by weight zirconium,22 to 24% by weight molybdenum,22 to 24% by weight chromium,less than 0.5% by weight unavoidable impurities and balance aluminum is produced and utilized as a melting electrode in the vacuum-electric-arc production of titanium alloys to produce an alloy containing the elements of the master alloy in substantially the same weight relationships and with substantial freedom from oxides and nitride inclusions. The titanium alloys which result are particularly effective for aerospace use.

Abstract: A masteralloy of the following composition:10 to 12% by weight tin,21 to 23% by weight zirconium,32 to 34% by weight molybdenum,less than 0.5% by weight unavoidable impurities and balance aluminum is produced and utilized as a melting electrode in the vacuum-electric-arc production of titanium alloys to produce an alloy containing the elements of the masteralloy in substantially the same weight relationships and with substantial freedom from oxides and nitride inclusions. The titanium alloys which result are particularly effective for aerospace use.

Abstract: A masteralloy of the following composition:13 to 15% by weight tin,27 to 29% by weight zirconium,13 to 15% by weight molybdenum,up to 0.6% by weight silicon,less than 0.5% by weight unavoidable impurities and balance aluminum is produced and utilized as a melting electrode in the vacuum-electric-arc production of titanium alloys to produce an alloy containing the elements of the masteralloy in substantially the same weight relationships and with substantial freedom from oxides and nitride inclusions. The titanium alloys which result are particularly effective for aerospace use.