Microstructure and Texture Formation During Near Conventional Forging of an Intermetallic Ti-45Al-5Nb Alloy

被引：15

作者：

Stark, Andreas ^{[1
]}

Bartels, Arno ^{[1
]}

Clemens, Helmut ^{[3
]}

Kremmer, Sascha ^{[2
]}

Schimansky, Frank-Peter ^{[4
]}

Gerling, Rainer ^{[4
]}

机构：

[1] Hamburg Univ Technol, Inst Mat Sci & Technol, D-21073 Hamburg, Germany

[2] Bohler Schmiedetech GmbH&CoKG, A-8605 Kapfenberg, Austria

[3] Univ Leoben, Dept Phys Met & Mat Testing, A-8700 Leoben, Austria

[4] GKSS Forschungszentrum Geesthacht GmbH, Inst Mat Res, D-21502 Geesthacht, Germany

来源：

ADVANCED ENGINEERING MATERIALS | 2009年 / 11卷 / 12期

关键词：

GAMMA-PHASE; BEHAVIOR; DIFFRACTION;

D O I：

10.1002/adem.200900117

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Texture formation was studied in an intermetallic Ti-45at%Al-5at%Nb alloy after uniaxial compression and near conventional forging. Depending on the deformation conditions the texture of the gamma-TiAl phase is formed by pure deformation components, components related to dynamic recrystallization, or transformation components. This changing corresponds with microstructural observations. The alpha(2)-Ti3Al and the alpha-Ti(Al) phase show a similar texture as it is known for Ti and Ti-base alloys after compressive deformation at elevated temperatures. In contrast to the gamma texture, no significant change of the alpha/alpha(2) texture was observed in the temperature range between 800 degrees C and just below the alpha-transus temperature (T-alpha = 1295 degrees C).

引用

页码：976 / 981

页数：6

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