Microstructure and Texture Design of NiAl via Thermomechanical Processing

Processing of NiAl polycrystals at different temperatures by axisymmetric deformation (extrusion through a round die, uniaxial compression) and plane strain deformation (extrusion through a rectangular die, rolling) leads to specific textures. Depending on temperature and strain, dynamic recrystalli...

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Bibliographic Details
Published inMicrostructural Design of Advanced Engineering Materials pp. 447 - 465
Main Author Skrotzki, Werner
Format Book Chapter
LanguageEnglish
Published Weinheim, Germany Wiley‐VCH Verlag GmbH & Co. KGaA 14.08.2013
Subjects
deformation
mechanical anisotropy
microstructure
NiAl
simulations
texture
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ISBN9783527332694
3527332693
DOI10.1002/9783527652815.ch18

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Summary:Processing of NiAl polycrystals at different temperatures by axisymmetric deformation (extrusion through a round die, uniaxial compression) and plane strain deformation (extrusion through a rectangular die, rolling) leads to specific textures. Depending on temperature and strain, dynamic recrystallization takes place, whereas annealing leads to static recrystallization. In general, the microstructures and textures of NiAl are changed by recrystallization. The development of the deformation and recrystallization textures by thermomechanical treatment is discussed by means of different models on polycrystal deformation and recrystallization, respectively. Conclusions concerning the anisotropy of the elastic and plastic properties are drawn.
ISBN:9783527332694
3527332693
DOI:10.1002/9783527652815.ch18