Method for production of precision castings by centrifugal casting
OwnerManfred Renkelinventor
Life of this patent
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Abstract
A production of precision castings by centrifugal casting, includes the following steps: a) providing in a crucible (8) a melt of the following composition: Ti45-52 at. %Al45-50 at. %Xl1-3 at. %X22-4 at. %X30-1 at. %/ where Xl =Cr, Mn, V, X2=Nb, Ta, W, Mo, X3=Si, B, C; b) forcing the melt by means of centrifugal forces from the crucible (8) into a mold (4); c) solidifying the melt within the mold thereby creating a casting consisting of a titanium alloy having a lamellar microstructure; and d) reheating the casting for a duration of 60 to 150 hours at a temperature higher than the eutectic temperature and lower than the alpha-transus temperature of the composition.
Claims20
A method for production of precision castings by centrifugal casting, comprising:
- a) providing in a crucible a titanium alloy melt of the following composition:
- Ti45-52 at. %Al45-50 at. %X11-3 at. %X22-4 at. %X30-1 at. %,
- where
- X1=Cr, Mn, V,
- X2=Nb, Ta, W, Mo,
- X3=Si, B, C;
- b) forcing the titanium alloy melt by means of centrifugal forces from the crucible into a mold;
- c) solidifying the titanium alloy melt within the mold thereby creating a titanium alloy casting having a lamellar microstructure;
- and
- d) reheating the titanium alloy casting for a duration of 80 to 150 hours at a temperature higher than the eutectic temperature and lower than the alpha-transus temperature of the titanium alloy casting.
Dependencies are inferred from the claim text.