Directionally solidified nickel-base eutectic alloys

A directionally solidified casting having improved high temperature properties is provided having a nickel-base matrix and comprising in weight percent of at least 2% rhenium and at least 6% tungsten, but less than 4% aluminum and less than 7% chromium. Embedded in the matrix is an aligned tantalum...

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Bibliographische Detailangaben
Hauptverfasser:	WALTER, JOHN L
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE ALLOYS APPARATUS THEREFOR CHEMISTRY CRYSTAL GROWTH FERROUS OR NON-FERROUS ALLOYS METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH TREATMENT OF ALLOYS OR NON-FERROUS METALS UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:	A directionally solidified casting having improved high temperature properties is provided having a nickel-base matrix and comprising in weight percent of at least 2% rhenium and at least 6% tungsten, but less than 4% aluminum and less than 7% chromium. Embedded in the matrix is an aligned tantalum carbide reinforcing fibrous phase.