Method for producing components with a high load capacity...

Details Method for producing components with a high load capacity... Method for producing components with a high load capacity...

2006-02-14

2006-02-14

King, Roy (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

C148S670000, C148S671000, C148S421000, C420S418000, C420S420000

Reexamination Certificate

active

06997995

ABSTRACT:
The invention relates to a method for producing components with a high load capacity from α+γ TiAl alloys, especially for producing components for aircraft engines or stationary gas turbines. According to this method, enclosed TiAl blanks of globular structure are preformed by isothermal primary forming in the α+γ− or α phase area. The preforms are then shaped out into components with a predeterminable contour by means of at least one isothermal secondary forming process, with dynamic recrystallization in the α+γ− or α phase area. The microstructure is adjusted by solution annealing the components in the α phase area and then cooling them off rapidly.

REFERENCES:
patent: 4294615 (1981-10-01), Blackburn et al.
patent: 5489411 (1996-02-01), Jha et al.
patent: 6161285 (2000-12-01), Eberhardt et al.
patent: 6174387 (2001-01-01), Bellows et al.
patent: H1988 (2001-09-01), Kim et al.
patent: 2004/0045644 (2004-03-01), Guther et al.
patent: WO02/101110 (2002-12-01), None

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