Naslov
Residual-Strain Determination by Least-Squares Refinement of TOF Neutron-Diffraction Measurements of Deformed Uranium

Autori
Popa, Nicolae ; Balzar, Davor ; Štefanić, Goran ; Vogel, Sven ; Brown, Donald ; Bourke, Mark ; Clausen, Bjorn

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Advances in X-ray Analysis / - , 2004, 373-378

Skup
Denver X-ray Conferences

Mjesto i datum
Denver (CO), Sjedinjene Američke Države, 04.08.2003. - 08.08.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
neutron diffraction; strain; Rietveld refinement

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA