Author
K. Pawlik
Bio: K. Pawlik is an academic researcher from Polish Academy of Sciences. The author has an hindex of 1, co-authored 1 publications receiving 207 citations.
Papers
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TL;DR: In this article, a new variant of the iteration method for the determination of the orientation distribution function (OVF) in arbitrarily defined size of cells in the orientation space, is suggested, in which the centro-symmetrical equivalency of the pole figures is induced by the elements of proper rotations in crystal symmetry.
Abstract: Practical problems of the reproduction of the orientation distribution function (ODF) from pole figures (PFs) using discrete methods (with special attention paid to Imhof's method,) are analysed A new variant of the iteration method for the determination of the ODF in arbitrarily defined size of cells in the orientation space, is suggested The special case, in which the centro-symmetrical equivalency of the PFs is induced by the elements of proper rotations in crystal symmetry, is considered
Es werden praktische Probleme der Reproduktion der Orientierungsverteilungsfunktion (OVF) aus Polfiguren (PFn) bei Anwendung diskreter Methoden (bei besonderer Beachtung der Imhof Methode) analysiert Eine neue Variante des Iterationsverfahrens fur die Bestimmung des OVF mit einer Wahlfreiheit der Zellengrose im Orientierungsraum wird vorgeschlagen Es wird ein Spezialfall betrachtet, in dem Elemente der eigentlichen Drehungen in der Kristallsymmetrie eine zentrosymmetrische Gleichwertigkeit in den PFn induzieren
217 citations
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11 Dec 2003-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, the authors measured the texture of a round-robin limestone standard and extracted orientation distribution data from TOF diffraction spectra with different methods (Rietveld harmonic method, Rietvedeld direct method, automatic fitting of individual peak intensities), and the results compare favorably with results obtained on the same sample measured at other facilities.
Abstract: The new neutron time-of-flight (TOF) diffractometer HIPPO (High-Pressure-Preferred Orientation) at LANSCE (Los Alamos Neutron Science Center) is described and results for quantitative texture analysis of a standard sample are discussed. HIPPO overcomes the problem of weak neutron scattering intensities by taking advantage of the improved source at LANSCE, a short flight path (9 m) and a novel three-dimensional arrangement of detector banks with 1360 3He tubes, on five conical rings with scattering angles ranging from 2θ=10° to 150°. Flux at the sample is on the order of 107 neutrons cm−2 s−1. A large sample chamber (75 cm diameter well) can accommodate ancillary equipment such as an automatic sample changer/goniometer used in this study. This instrument was used to measure the texture of a round-robin limestone standard and extract orientation distribution data from TOF diffraction spectra with different methods (Rietveld harmonic method, Rietveld direct method, automatic fitting of individual peak intensities), and the results compare favorably. Also, there is good agreement with results obtained on the same sample measured at other facilities, but with greatly reduced measuring time for HIPPO.
335 citations
TL;DR: In this paper, the Schmid factor applicable to each of the six contraction twins that could potentially form in each grain was calculated by rotating the twinning shear displacement gradient tensor into the crystallographic reference frame of the neighboring grain.
287 citations
TL;DR: Grain Boundary Character Distributions (GBCD) in grain-oriented electrical steels were calculated from the Orientation Distribution Functions of the Primary recrystallization texture as discussed by the authors.
149 citations
TL;DR: Asymmetrically hot rolled AZ31 magnesium alloy sheets exhibited a texture gradient, where the intensity of {0002} basal textures decreased from the upper surface through the center to the lower surface as discussed by the authors.
147 citations
TL;DR: In this article, a multilayered thin film consisting of alternating Cu and Nb layers with columnar grains was produced by magnetron sputtering, with individual layer thickness ranging from 4 μm to 75 nm and interfaces locally satisfying the Kurdjumov-Sachs (K-S) orientation relations.
121 citations