Microstructural characterization through grain orientation mapping with Laue three-dimensional neutron diffraction tomography

Samothrakitis, Stavros; Larsen, Camilla Buhl; Čapek, Jan; Polatidis, Efthymios; Raventós, Marc; Tovar, Michael; Schmidt, Søren; Ströbl, Markus

doi:10.1016/j.mtadv.2022.100258

Cited by 1 publication

(1 citation statement)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main data-analysis procedure includes image preparation, spot indexing and grain mapping, and optional volumetric grain reconstruction. The above processes are presented in detail by Ravento ´s et al (2019), Samothrakitis et al (2020b) and Samothrakitis et al (2022). Here we will thus give only a short overview of each process.…”

Section: Discussionmentioning

confidence: 96%

The FALCON double-detector Laue diffractometer add-on for grain mapping at POLDI

Samothrakitis,

Larsen,

Kaestner

et al. 2023

J Appl Cryst

Self Cite

View full text Add to dashboard Cite

Laue 3D neutron diffraction tomography (Laue 3DNDT) is a novel tomographic approach that enables non-destructive resolution of the 3D microstructure of polycrystalline materials, utilizing a high-intensity white beam of neutrons, resulting in high experimental efficiency. This article describes the functionality of the fast-acquisition Laue camera for neutrons (FALCON), a double-detector system setup used for Laue 3DNDT experiments at the pulse-overlap diffractometer (POLDI) at the SINQ neutron source of the Paul Scherrer Institute. The reported commissioning includes standard experimental protocols, strategies for acquiring data and a detailed characterization of the measurement system. Finally, single-crystal measurements for calibration and a full grain map of a CoNiGa oligocrystalline sample, extracted from a pilot study, are presented. A detailed understanding of the performance of the FALCON instrumentation is vital for the future advancement of the Laue 3DNDT algorithm, including, but not limited to, improved morphology reconstructions and strain mapping.

show abstract

Section: Discussionmentioning

confidence: 96%