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Patent Searching and Data


Title:
TURBINE BLADE AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPH07166802
Kind Code:
A
Abstract:

PURPOSE: To provide a turbine blade which can be employed in a turbine operating at medium and high temperatures and which simultaneously has a long life and can be mass-produced easily and a method for manufacturing the same.

CONSTITUTION: This turbine blade has a casting main body made from an alloy based on a dopant-containing gamma-aluminum nitride, a shovel-like blade 1, a foot part 2 and, if appropriate, a cover belt 3. The alloy serves as a structural material of a coarse-grained structure with high tensile strength and long-range stability at the parts of the shovel-like blade 1, while at the foot part 2 and the parts of the cover belt 3, it has a fine-grained structure with higher ductility than that of the material contained in the blade 1.


Inventors:
MOHAMEDO NAZUMII
MARUKUSU SHIYUTAUBURI
Application Number:
JP11642092A
Publication Date:
June 27, 1995
Filing Date:
May 08, 1992
Export Citation:
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Assignee:
ASEA BROWN BOVERI (CH)
International Classes:
B21K3/04; C22C14/00; C22F1/18; F01D5/28; (IPC1-7): F01D5/28
Attorney, Agent or Firm:
Mitsufumi Ezaki (3 others)