DOI: 10.5281/zenodo.7477472
title: Measuring Bulk Crystallographic Texture from Ti-6Al-4V Hot-Rolled Sample Matrices using Synchrotron X-ray Diffraction (Results Dataset)

description: A dataset of crystallographic texture results for both α (hexagonal close packed, hcp) and β (body-centred cubic, bcc) phases, measured from 31 different hot-rolled Ti-6Al-4V (Ti-64) materials and 3 differently orientated samples using synchrotron X-ray diffraction (SXRD). The aim of the work was to accurately quantify bulk macro-texture for both the α and β phases across a range of different processing conditions, and to compare results with electron backscatter diffraction (EBSD) measurements. The synchrotron intensities were extracted using a new Fourier-based peak fitting method from the Continuous-Peak-Fit Python package, and then directly used to calculate the pole figures, orientation distribution functions (ODFs) and numerical values for the texture indices in MTEX <strong>Material </strong> The Ti-64 materials had been hot-rolled at a range of different temperatures, and to different reductions, followed by air-cooling. Three samples of different orientation were cut from the centre of these rolled blocks, and from the starting material. The material and hot-rolling conditions are recorded in this analysis dataset as an excel spreadsheet and summarised in the table below. A table recording the sample number and associated hot-rolling condition. <em><strong>Sample Number</strong></em> <em><strong>Rolling Condition</strong></em> 1 825ºC, 87.5% Reduction 2 865ºC, 87.5% Reduction 3 895ºC, 87.5% Reduction 4 915ºC, 87.5% Reduction 5 935ºC, 87.5% Reduction 6 950ºC, 87.5% Reduction 7 960ºC, 87.5% Reduction 8 975ºC, 87.5% Reduction 9 1020ºC, 87.5% Reduction 10 β-annealed, 825ºC, 87.5% Reduction 11 β-annealed, 915ºC, 87.5% Reduction 12 β-annealed, 975ºC, 87.5% Reduction 13 Reduced heating from 915ºC, 87.5% Reduction 14 Reduced heating from 975ºC, 87.5% Reduction 15 825ºC, 75% Reduction 16 865ºC, 75% Reduction 17 895ºC, 75% Reduction 18 915ºC, 75% Reduction 19 935ºC, 75% Reduction 20 950ºC, 75% Reduction 21 960ºC, 75% Reduction 22 975ºC, 75% Reduction 23 1020ºC, 75% Reduction 24 β-annealed, 825ºC, 75% Reduction 25 β-annealed, 915ºC, 75% Reduction 26 β-annealed, 975ºC, 75% Reduction 27 Reduced heating from 915ºC, 75% Reduction 28 Reduced heating from 975ºC, 75% Reduction 29 As-received 30 As-received, β-annealed 31 975ºC, 50% Reduction <strong>MTEX Data Analysis</strong> The lattice plane intensities for 22 α and 4 β phase peaks were extracted from the Continuous-Peak-Fit analysis, also included in this analysis dataset, and saved as text files in the form of pole figures. The lattice intensity text files were analysed in MTEX using scripts from the continuous-peak-fit-analysis package, to plot pole figures and ODF slices, and to calculate pole figure maxima, ODF maxima, texture indices and texture component phase fractions. A kernel half-width of 10° was found to produce optimal data fitting, for highly accurate texture strength intensity values. <strong>Metadata </strong> An accompanying YAML text file contains associated processing metadata for the SXRD analysis, recording information about the packages used to process the data, along with details about the different files contained within this results dataset.