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
收藏
页码：976 / 981
页数：6
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