Residual-Strain Determination by Least-Squares Refinement of TOF Neutron-Diffraction Measurements of Deformed Uranium (CROSBI ID 584047)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Popa, Nicolae ; Balzar, Davor ; Štefanić, Goran ; Vogel, Sven ; Brown, Donald ; Bourke, Mark ; Clausen, Bjorn
engleski
Residual-Strain Determination by Least-Squares Refinement of TOF Neutron-Diffraction Measurements of Deformed Uranium
We report the complete macroscopic average strain tensor for a cold-rolled uranium plate. The strain tensor was determined by the least-squares refinement of interplanar spacings for 19 Bragg reflections, as determined from the neutron TOF measurements at LANSCE. An annealed uranium plate was used as a reference sample, thus providing reference interplanar spacings for all 19 reflections. We also discuss the mathematical background for the calculation of the average macroscopic strain tensor as applied to the orthorhombic crystal symmetry and general triclinic sample symmetry of the uranium sample, based on a recently proposed method to determine texture-weighted strain orientation distribution function for arbitrary crystal and sample symmetries.
neutron diffraction; strain; Rietveld refinement
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Podaci o prilogu
373-378.
2004.
objavljeno
Podaci o matičnoj publikaciji
Podaci o skupu
Denver X-ray Conferences
predavanje
02.08.2004-06.08.2004
Denver (CO), Sjedinjene Američke Države