Heterogeneity of Deformation in Pure Ni Single Crystal of Cube Orientation Deformed by Equal Channel Angular Extrusion

2005 ◽  
Vol 495-497 ◽  
pp. 833-838 ◽  
Author(s):  
D. Goran ◽  
Jean-Jacques Fundenberger ◽  
Satyam Suwas ◽  
Emmanuel Bouzy ◽  
László S. Tóth ◽  
...  
Keyword(s):  
Single Crystal ◽  
Equal Channel Angular Extrusion ◽  
Fine Scale ◽  
X Ray Diffraction ◽  
Cube Orientation ◽  
X Ray ◽  
Angular Extrusion ◽  
Global And Local

Texture and microstructure were investigated after 1 pass equal channel angular extrusion (ECAE) of a single crystal cube oriented Ni billet. Neutron and X-ray diffraction were used to determine global and local textures, respectively. EBSD and TEM investigations were also carried out in order to study fine scale microstructural features. Substantial variations in texture and microstructure, resulting from different efficiencies in the shearing process, were locally recorded through the billet height. The deformation was heterogeneous on both micro and macro scales.

Pure Ni Single Crystal of Cube Orientation Deformed by Equal Channel Angular Extrusion

2005 ◽  
Vol 105 ◽  
pp. 333-338 ◽  
Author(s):  
D. Goran ◽  
Jean-Jacques Fundenberger ◽  
Satyam Suwas ◽  
Emmanuel Bouzy ◽  
László S. Tóth ◽  
...  
Keyword(s):  
Single Crystal ◽  
Equal Channel Angular Extrusion ◽  
Fine Scale ◽  
X Ray Diffraction ◽  
Cube Orientation ◽  
X Ray ◽  
Angular Extrusion ◽  
Global And Local

Texture and microstructure were investigated after 1 pass equal channel angular extrusion (ECAE) of a single crystal cube oriented Ni billet. Neutron and X-ray diffraction were used to determine global and local textures, respectively. To investigate the fine scale microstructural features EBSD was used. Substantial variations in texture and microstructure resulting from different efficiencies in the shearing process were locally recorded through the billet height.

Pure Ni Single Crystal of Cube Orientation Deformed by Equal Channel Angular Extrusion

2005 ◽  
pp. 333-338
Author(s):  
D. Goran ◽  
Jean-Jacques Fundenberger ◽  
Satyam Suwas ◽  
Emmanuel Bouzy ◽  
László S. Tóth ◽  
...  
Keyword(s):  
Single Crystal ◽  
Equal Channel Angular Extrusion ◽  
Cube Orientation ◽  
Angular Extrusion

Electron Microscopy of Shock Loaded Polycrystalline Beryllium

1974 ◽  
Vol 32 ◽  
pp. 506-507 ◽  
Author(s):  
J. M. Galbraith ◽  
L. E. Murr ◽  
A. L. Stevens
Keyword(s):  
Electron Microscopy ◽  
Wave Propagation ◽  
Structural Change ◽  
Single Crystal ◽  
Diffraction Pattern ◽  
Shock Loading ◽  
Slip Systems ◽  
Compression Tests ◽  
X Ray Diffraction ◽  
X Ray

Uniaxial compression tests and hydrostatic tests at pressures up to 27 kbars have been performed to determine operating slip systems in single crystal and polycrystal1ine beryllium. A recent study has been made of wave propagation in single crystal beryllium by shock loading to selectively activate various slip systems, and this has been followed by a study of wave propagation and spallation in textured, polycrystal1ine beryllium. An alteration in the X-ray diffraction pattern has been noted after shock loading, but this alteration has not yet been correlated with any structural change occurring during shock loading of polycrystal1ine beryllium.This study is being conducted in an effort to characterize the effects of shock loading on textured, polycrystal1ine beryllium. Samples were fabricated from a billet of Kawecki-Berylco hot pressed HP-10 beryllium.

Crystal structure of an inclusion complex between chiral monoaza-15-crown-5 and S(–)-1-phenyl-ethyl ammonium percholorate

2003 ◽  
Vol 218 (5) ◽  
Author(s):  
Süheyla Özbey ◽  
F. B. Kaynak ◽  
M. Toğrul ◽  
N. Demirel ◽  
H. Hoşgören
Keyword(s):  
Crystal Structure ◽  
Inclusion Complex ◽  
Single Crystal ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
New Type

AbstractA new type of inclusion complex, S(–)-1 phenyl ethyl ammonium percholorate complex of R-(–)-2-ethyl - N - benzyl - 4, 7, 10, 13 - tetraoxa -1- azacyclopentadecane, has been prepared and studied by NMR, IR and single crystal X-ray diffraction techniques. The compound crystallizes in space group

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