3D mapping of macrozones in Ti alloy using texture tomography

DOI

Ti alloys are known to develop spatially varying, distinct crystallographic textures over macroscopic material volumes as a result of thermo-mechanical processing. The presence of these so-called macrozones and associated variability of mechanical properties can lead to premature failure in critical engineering applications. So far, the characterization of 3D local texture can only be tested with destructive methods based on repeated EBSD characterization. Here we propose to map the local texture in 10 mm^3 sized volumes of two commonly used Ti alloys, known to contain macrozones spanning several hundreds of µm using the wide angle (WAXS) extension of the tensor tomography methodology, initially established for small angle scattering (SAXS) and bio-materials. Two different reconstruction approaches (hyperspherical harmonics) versus regular sampling of orientation space will be evaluated against each other, and the results will be cross-validated against serial sectionning and EBSD.

Identifier
DOI https://doi.org/10.15151/ESRF-ES-2009542654
Metadata Access https://icatplus.esrf.fr/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatplus.esrf.fr:inv/2009542654
Provenance
Creator Wolfgang LUDWIG; Moritz Paul Karl FREWEIN ORCID logo; Haixing FANG ORCID logo; Mads CARLSEN ORCID logo
Publisher ESRF (European Synchrotron Radiation Facility)
Publication Year 2028
Rights CC-BY-4.0; https://creativecommons.org/licenses/by/4.0
OpenAccess true
Representation
Resource Type Data from large facility measurement; Collection
Discipline Particles, Nuclei and Fields