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Neutron Scattering Studies in Materials Science

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Simulation and Design".

Deadline for manuscript submissions: closed (20 March 2023) | Viewed by 1256

Special Issue Editor


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Guest Editor
Oak Ridge National Laboratory, Oak Ridge, TN, USA
Interests: magnetism and magnetic materials; quantum condensed matter; X-ray and neutron scattering

Special Issue Information

Dear Colleagues,

Neutron scattering is one of the most useful probes to analyze the properties of materials. Scattering both magnetic and nuclear is used for determining unknown structures. Neutron spectroscopy gives insight into the fundamental excitations of the underlying lattice. The high penetration of neutrons allows the construction of extreme sample environment allowing to probe materials at ultra-low temperatures, high magnetic fields, extreme pressures, high temperatures and sometimes a combination of them. The increase in flux brilliance on neutron sources combined with event mode collection further facilitates experiments in-situ and in-operando. Neutron scattering in materials sciences is and has been fundamental to understand structures of materials, their textures, the associated strains in bulk. In-operando techniques reveal the evolution of these over time and allow the informed design of improved materials.

The special issue of Neutron Scattering studies in Materials Science aims to present state of the art applications for neutron scattering in materials science and an outlook into the future impact of neutron scattering in materials science using tiime-resovled techniques.

Dr. Matthias D. Frontzek
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • neutron scattering
  • structure determination
  • texture analysis
  • strain/stress mapping
  • time resolved in-situ and in-operando

Published Papers (1 paper)

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Research

12 pages, 2849 KiB  
Article
Validating the Use of Gaussian Process Regression for Adaptive Mapping of Residual Stress Fields
by Chris M. Fancher, Singanallur Venkatakrishnan, Thomas Feldhausen, Kyle Saleeby and Alex Plotkowski
Materials 2023, 16(10), 3854; https://doi.org/10.3390/ma16103854 - 20 May 2023
Viewed by 1014
Abstract
Probing the stress state using a high density of measurement points is time intensive and presents a limitation for what is experimentally feasible. Alternatively, individual strain fields used for determining stresses can be reconstructed from a subset of points using a Gaussian process [...] Read more.
Probing the stress state using a high density of measurement points is time intensive and presents a limitation for what is experimentally feasible. Alternatively, individual strain fields used for determining stresses can be reconstructed from a subset of points using a Gaussian process regression (GPR). Results presented in this paper evidence that determining stresses from reconstructed strain fields is a viable approach for reducing the number of measurements needed to fully sample a component’s stress state. The approach was demonstrated by reconstructing the stress fields in wire-arc additively manufactured walls fabricated using either a mild steel or low-temperature transition feedstock. Effects of errors in individual GP reconstructed strain maps and how these errors propagate to the final stress maps were assessed. Implications of the initial sampling approach and how localized strains affect convergence are explored to give guidance on how best to implement a dynamic sampling experiment. Full article
(This article belongs to the Special Issue Neutron Scattering Studies in Materials Science)
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