Title:
TIAL-BASE ALLOY EXCELLENT IN HARDNESS AT HIGH TEMPERATURE AS WELL AS IN STRENGTH AT HIGH TEMPERATURE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH0517836
Kind Code:
A
Abstract:
PURPOSE: To provide a TiAl-base alloy having superior strength at high temp. and hardness at high temp. by constituting a TiAl-base alloy of respectively specified weight percentages of Al and N and the balance Ti.
CONSTITUTION: The TiAl-base alloy has a composition consisting of, by weight, 33-36% Al, 0.01-0.10% N, and the balance Ti with inevitable impurities, or, a material consisting of 33-36% Al and the balance Ti with inevitable impurities is used and a nitride of ≤1600°C melting point is added to this material, followed by refining. By this method, the TiAl-base alloy excellent in hardness at high temp. as well as in strength at high temp. can be produced.
Inventors:
TAKAGI SHINICHI
OUCHI CHIAKI
OUCHI CHIAKI
Application Number:
JP19879791A
Publication Date:
January 26, 1993
Filing Date:
July 12, 1991
Export Citation:
Assignee:
NIPPON KOKAN KK
International Classes:
C22C14/00; C22C1/02; (IPC1-7): C22C1/02; C22C14/00
Attorney, Agent or Firm:
Natsuo Shiotani
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