Peculiarities in the Texture Formation of Intermetallic Compounds Deformed by High Pressure Torsion. Issue 1760 (2nd January 2015)

• Record Type: Journal Article
• Authors: Baker, I.; Heilmaier, M.; Kishida, K.; Mills, M.; Miura, S.; Tränkner, Christine; Pukenas, Aurimas; Horky, Jelena; Zehetbauer, Michael; Skrotzki, Werner
• Is Part Of: MRS proceedings. Issue 1760(2015)
• Publication Date: 2015-01-02
• Subjects: Electrical engineering -- Congresses; Physics -- Congresses; Materials -- Research -- Congresses; Materials science -- Congresses; 620.11
• DOI: 10.1557/opl.2014.963
• Languages: English
• ISSNs: 0272-9172

Abstract

<abstract abstract-type="normal"> <title>ABSTRACT</title> <p>NiAl, YCu and TiAl polycrystals with B2 and L1₀ structure, respectively, have been deformed by high pressure torsion (HPT) at temperatures between 20°C and 500°C at a hydrostatic pressure of 8 GPa to high shear strains. Local texture measurements were done by diffraction of high-energy synchrotron radiation and X-ray microdiffraction. In addition, the microstructure was analyzed by electron backscatter diffraction (EBSD). Besides typical shear components an oblique cube component is observed with quite large rotations about the transverse direction. Based on the temperature dependence of this component as well as on microstructure investigations it is concluded that it is formed by discontinuous dynamic recrystallization. The influence of high pressure on recrystallization of intermetallics at low temperatures is discussed.</p> </abstract>