Mechanical anisotropy of a gamma titanium aluminide alloy after hot extrusion

Oehring, M; Lorenz, U; Niefanger, R; Appel, F; Brokmeier, H G; Wagner, R; Clemens, H; Eberhardt, N

Title: Mechanical anisotropy of a gamma titanium aluminide alloy after hot extrusion

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Abstract

By hot extrusion below and above the {alpha} transus temperature equiaxed and predominantly lamellar microstructures were obtained in a Ti aluminide alloy. In order to examine a possible orientation dependence of mechanical properties the flow stress, the activation parameters of plastic deformation and the fracture toughness were determined parallel and perpendicular to the extrusion direction at room temperature and 700 C. The observed anisotropy in these properties may be mainly attributed to anisotropies in the microstructures, in particular to a preferential alignment of lamellae in lamellar microstructures.

Authors:: Oehring, M; Lorenz, U; Niefanger, R; Appel, F; Brokmeier, H G; Wagner, R; Clemens, H; Eberhardt, N

Publication Date:: Thu Jul 01 00:00:00 EDT 1999

Research Org.:: GKSS Research Centre, Geesthacht (DE)

Sponsoring Org.:: German Federal Ministry for Education and Research

OSTI Identifier:: 20001604

Report Number(s):: CONF-981104-
ISBN 1-55899-458-0; ISSN 1067-9995; TRN: US0000180

Resource Type:: Conference

Resource Relation:: Conference: High-Temperature Ordered Intermetallic Alloys VIII, Materials Research Society Symposium Proceedings, Boston, MA (US), 11/30/1998--12/03/1998; Other Information: PBD: 1999; Related Information: In: High-temperature ordered intermetallic alloys VIII. Materials Research Society symposium proceedings: Volume 552, by George, E.P.; Mills, M.J.; Yamaguchi, Masaharu [eds.], [600] pages.

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; MICROSTRUCTURE; COMPRESSION STRENGTH; FRACTURE PROPERTIES; EXTRUSION; TITANIUM ALLOYS; ALUMINIUM ALLOYS; CHROMIUM ALLOYS; MANGANESE ALLOYS; NIOBIUM ALLOYS; SILICON ALLOYS; INTERMETALLIC COMPOUNDS; FLOW STRESS; ORIENTATION; ANISOTROPY; EXPERIMENTAL DATA

Citation Formats


                    Oehring, M, Lorenz, U, Niefanger, R, Appel, F, Brokmeier, H G, Wagner, R, Clemens, H, and Eberhardt, N. Mechanical anisotropy of a gamma titanium aluminide alloy after hot extrusion.  United States: N. p., 1999. 
        Web.

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                    Oehring, M, Lorenz, U, Niefanger, R, Appel, F, Brokmeier, H G, Wagner, R, Clemens, H, & Eberhardt, N. Mechanical anisotropy of a gamma titanium aluminide alloy after hot extrusion.  United States.

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                    Oehring, M, Lorenz, U, Niefanger, R, Appel, F, Brokmeier, H G, Wagner, R, Clemens, H, and Eberhardt, N. 1999.  
        "Mechanical anisotropy of a gamma titanium aluminide alloy after hot extrusion".  United States.

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@article{osti_20001604,

  title        = {Mechanical anisotropy of a gamma titanium aluminide alloy after hot extrusion},

  author       = {Oehring, M and Lorenz, U and Niefanger, R and Appel, F and Brokmeier, H G and Wagner, R and Clemens, H and Eberhardt, N},

  abstractNote = {By hot extrusion below and above the {alpha} transus temperature equiaxed and predominantly lamellar microstructures were obtained in a Ti aluminide alloy. In order to examine a possible orientation dependence of mechanical properties the flow stress, the activation parameters of plastic deformation and the fracture toughness were determined parallel and perpendicular to the extrusion direction at room temperature and 700 C. The observed anisotropy in these properties may be mainly attributed to anisotropies in the microstructures, in particular to a preferential alignment of lamellae in lamellar microstructures.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/20001604},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Jul 01 00:00:00 EDT 1999},

  month        = {Thu Jul 01 00:00:00 EDT 1999}

}

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