Title:
TITANIUM-ALUMINUM INTERMETALLIC COMPOUND EXCELLENT IN TOUGHNESS AND CREEP CHARACTERISTIC, AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH1036928
Kind Code:
A
Abstract:
To obtain a TiAl intermetallic compound excellent in oxidation resistance as well as in toughness and creep characteristic.
This TiAl intermetallic compound has a composition consisting of 27-36wt.% Al and the balance Ti with inevitable impurities and is produced by a reaction synthesis method where a powder green compact is treated at high temp. and high pressure. In this intermetallic compound, microstructure is composed of stratiform lamellar structure formed of α2 phases (Ti3Al) and γ-phases (TiAl) and the average size of lamellar grains in the lamellar structure is regulated to 500-3000μm. If necessary, Cl, F, Br and I, or Cr, V and Mn, or further Mo, Ta, Zr and Hf can also be added.
Inventors:
FURUYAMA TSUTOMU
SHIBUE KAZUHISA
SHIBUE KAZUHISA
Application Number:
JP21307996A
Publication Date:
February 10, 1998
Filing Date:
July 24, 1996
Export Citation:
Assignee:
SUMITOMO LIGHT METAL IND
International Classes:
C22F1/18; C22C1/04; C22C14/00; (IPC1-7): C22C14/00; C22F1/18
Attorney, Agent or Firm:
Fukuda Yasuo
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