NIOBIUM CONTAINING TITANIUM ALUMINIDE RENDERED CASTABLE BY BORON INOCULATIONS

NIOBIUM CONTAINING TITANIUM ALUMINIDE RENDERED CASTABLE BY BORON INOCULATIONS

A composition for providing improved castability in a gamma titanium aluminide is taught. The method involves adding inclusions of boron to the titanium aluminide containing higher concentrations of niobium. Boron additions are made in concentrations between 0.5 and 2 atomic percent, Fine grain equi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: HUANG, SHYHIN
Format: Patent
Sprache:eng ; fre
Schlagworte:
ALLOYS
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:A composition for providing improved castability in a gamma titanium aluminide is taught. The method involves adding inclusions of boron to the titanium aluminide containing higher concentrations of niobium. Boron additions are made in concentrations between 0.5 and 2 atomic percent, Fine grain equiaxed microstructure is found from solidified melt. Property improvements are also achieved.