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2 results for “texture evolutions”
Data for: Microstructure evolution and texture development during production of homogeneous fine-grained aluminum wire by friction extrusion
<p>This dataset contains the data for paper “Microstructure evolution and texture development during production of homogeneous fine-grained aluminum wire by friction extrusion” published in Materials Characterization.</p> <p>Abstract: This study aims to understand the microstructure evolution and texture development during friction extrusion of aluminium alloys, focusing on AA7075 as exemplary alloy system. Electron backscatter diffraction technique has been employed to obtain crystallographic data from various regions in front of the die and in the wire. It can be deduced that the combination of continuous dynamic recrystallization and geometric dynamic recrystallization mainly govern the formation of a fine-grained structure, however discontinuous dynamic recrystallization may also play a role at high temperature. The global shear deformation during the process was characterized as a simple shear deformation with dominant <span class="math-tex">\(B/\overline{B}\)</span> simple shear texture components. The material flow is mainly driven by the in-plane shear strain and the extrusion-induced shear strain that are determined by die rotational speed and extrusion force, respectively. The in-plane shear strain strongly affects the formation of a homogeneous fine-grained microstructure in the aluminum wire. In this regard, a novel material flow model for friction extrusion has been proposed.</p>
Dietary diversity and evolution of the earliest flying vertebrates revealed by dental microwear texture analysis
<p>Supporting data for: Bestwick <em>et al.</em> (accepted) ‘Dietary diversity and evolution of the earliest true flying vertebrates revealed by dental microwear texture analysis’. Nature Communications.</p> <p>Data include .xlsx files of:</p> <ul> <li>Raw 3D microwear texture data for all extant reptiles and bats and for all pterosaurs included in the study</li> <li>Dietary breakdowns of extant reptiles and bats used in analyses</li> <li>Results of microwear texture differences between bat dietary guilds</li> <li>ISO texture parameter definitions</li> <li>Dietary correlation results between dietary component and PC 1 and 2 values</li> <li>Estimated ancestral PC 1 and 2 values for each node from the three phylogenies used in the ancestral pterosaur dietary state reconstructions.</li> </ul> <p>Also includes example R code used in the pterosaur dietary evolution reconstructions.</p>
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