ENHANCEMENT OF TRANSVERSE PROPERTIES OF DIRECTIONALLY SOLIDIFIED SUPERALLOYS

1359938 Nickel base superalloys UNITED AIRCRAFT CORP 11 April 1972 [12 July 1971] 16571/72 Heading C7A The mechanical properties, transverse to the alignment of the columnar grains, of undirectionally solidified nickel-base superalloys are improved by including in the alloy 0À75- 1À25% Zr. Tests wer...

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Bibliographic Details
Main Author DAVID N. DUHL
Format Patent
LanguageEnglish
Published 24.10.1972
Subjects
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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Summary:1359938 Nickel base superalloys UNITED AIRCRAFT CORP 11 April 1972 [12 July 1971] 16571/72 Heading C7A The mechanical properties, transverse to the alignment of the columnar grains, of undirectionally solidified nickel-base superalloys are improved by including in the alloy 0À75- 1À25% Zr. Tests were conducted on an alloy consisting of:- Fe 1À5% max, Cu 0À1% max, Mn 0À2% max, S 0À015% max, Si 0À2% max, the balance, apart from the Zr content, being Ni. The production of turbine blades is mentioned.
Bibliography:Application Number: USD3700433