Title:
LOW CR-CONTAINING SUPERALLOY COMPOSITION FOR SINGLE CRYSTAL HAVING HIGH STRENGTH AND HIGH OXIDATION RESISTANCE, AND SINGLE CRYSTAL SUPERALLOY BODY
Document Type and Number:
Japanese Patent JP3958850
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a low Cr-contg. superalloy composition for single crystals having high strength and high oxidation-resistance and suitable for casting as a single crystal form and to provide a single crystal superalloy body.
SOLUTION: This composition contains, by weight, 3.0 to 20.0% Co, 5.0 to 10.0% W, 5.0 to 7.0% Al, 0.4 to 2.9% Cr, 4.0 to 8.0% Ta, 0 to 1.0% V, 0 to 8.5% Re, 0 to 1.5% Ti, 0 to 3.0% Hf, 0 to 4.0% Mo, 0 to 2.0% Nb, 0 to 10.0% of one or more kinds of elements optionally selected from one group composed of Ru, Rh, Pd, Os, Ir and Pt, 0 to 1.0% of Y, La. Sc, Ac, lanthanoids or actinoids, and the balance Ni.
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Inventors:
Alandie Setel
David N. Dur
David N. Dur
Application Number:
JP33832497A
Publication Date:
August 15, 2007
Filing Date:
December 09, 1997
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORPORATION
International Classes:
C22C19/05; C30B11/00; F01D5/28; C30B29/52; (IPC1-7): C22C19/05; C30B29/52; F01D5/28
Domestic Patent References:
| JP7138683A |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Tomioka Kiyoshi
Tomioka Kiyoshi