MOULDED PIECE MADE FROM AN INTERMETALLIC GAMMA TIAL MATERIAL

Title:

MOULDED PIECE MADE FROM AN INTERMETALLIC GAMMA TIAL MATERIAL

Document Type and Number:

WIPO Patent Application WO2003008655

Kind Code:

A3

Abstract:

The invention relates to a moulded piece made from a selection of gamma TiAl alloys with excellent mechanical properties, which, according to the invention, may be produced particularly economically, by a series of process steps. The production comprises the following process steps. Preparation of a semi-finished piece by means of a hot-moulding process, with a degree of shaping of more than 65 %, moulding the semi-finished piece in the solid/liquid phase of the alloy in a moulding tool with at least periodic application of mechanical moulding forces.

Inventors:

HOFFMANN ANDREAS (AT)
KESTLER HEINRICH (AT)

Application Number:

PCT/AT2002/000205

Publication Date:

October 30, 2003

Filing Date:

July 12, 2002

Export Citation:

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Assignee:

PLANSEE AG (AT)
HOFFMANN ANDREAS (AT)
KESTLER HEINRICH (AT)

International Classes:

C22C1/00; C22C14/00; C22F1/18; (IPC1-7): C22C14/00; C22F1/18; B22D17/00

Foreign References:

US5580665A	1996-12-03
EP0965412A1	1999-12-22
US5358687A	1994-10-25

Other References:

SEMIATIN ET AL.: "Processing of intermetallics alloys", STRUCTURAL INTERMETALLICS 1997, 21 September 1997 (1997-09-21) - 25 September 1997 (1997-09-25), USA, pages 263 - 276, XP002221558

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