Thermo-mechanical processing (TMP) of Ti-48Al-2Nb-2Cr based alloys

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:225130

Fuchs, G E ^[1]

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1. KAPL, Inc., Schenectady, NY (United States)

The effects of heat treatment and deformation processing on the microstructures and properties of {gamma}-TiAl based alloys produced by ingot metallurgy (I/M) and powder metallurgy (P/M) techniques were examined. The alloy selected for this work is the second generation {gamma}-TiAl based alloy -- Ti-48Al-2Nb-2Cr (at %). Homogenization of I/M samples was performed at a variety of temperatures, followed by hot working by isothermal forging. P/M samples were prepared from gas atomized powders, consolidated by both HIP and extrusion and some of the HIPed material was then hot worked by isothermal forging. The effects of processing, heat treatment and hot working on the microstructures and properties will be discussed.

• OSTI ID: 225130
• Report Number(s): CONF-950201-; ISBN 0-87339-304-X; TRN: IM9621%%60
• Resource Relation: Conference: Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Las Vegas, NV (United States), 12-16 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Gamma titanium aluminides; Kim, Y.W. [ed.] [UES, Inc., Dayton, OH (United States). Materials and Processes Div.]; Wagner, R. [ed.] [GKSS Research Center, Geesthacht (Germany). Inst. for Materials Research]; Yamaguchi, Masaharu [ed.] [Kyoto Univ. (Japan). Dept. of Materials Science and Engineering]; PB: 1023 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TITANIUM ALLOYS
THERMOMECHANICAL TREATMENTS
MICROSTRUCTURE
TENSILE PROPERTIES
CREEP
ALUMINIUM ALLOYS
NIOBIUM ALLOYS
CHROMIUM ALLOYS
INTERMETALLIC COMPOUNDS
CHEMICAL COMPOSITION
CASTING
POWDERS
FORGING
HOT PRESSING
EXTRUSION
STRAIN RATE
GRAIN SIZE
OPTICAL MICROSCOPY
SCANNING ELECTRON MICROSCOPY
TRANSMISSION ELECTRON MICROSCOPY