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On a possible use of neutron three axis diffractometer for studies of elastic and plastic deformation of polycrystalline materials
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SYSNO ASEP 0517293 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title On a possible use of neutron three axis diffractometer for studies of elastic and plastic deformation of polycrystalline materials Author(s) Mikula, Pavol (UJF-V) RID, ORCID, SAI
Ryukhtin, Vasil (UJF-V) RID, ORCID, SAI
Rogante, M. (IT)Number of authors 3 Source Title EAN 2019 - Conference Proceedings, Experimental Stress Analysis - 57th International Scientific Conference. - Praha : Czech Society for Mechanics, 2019 - ISBN 978-802145766-9 Pages s. 286-290 Number of pages 5 s. Publication form Print - P Action 57th International Scientific Conference on Experimental Stress Analysis (EAN 2019) Event date 03.06.2019 - 06.06.2019 VEvent location Luhačovice Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords instrumentation ; neutron diffraction ; strain measurements Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects LM2015056 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UJF-V - RVO:61389005 UT WOS 000568113800047 EID SCOPUS 85071272655 Annotation Feasibility of using a high-resolution three axis neutron diffractometer performance for elastic and plastic deformation studies of metallic polycrystalline samples is presented. The method consists of unconventional set up employing bent perfect crystal (BPC) monochromator and analyzer with a polycrystalline sample in between. After the realization of focusing conditions in real and momentum space at the neutron wavelength of 0.162 nm, a high angular resolution up to FWHM(d/d)=2x10-3 was achieved on the standard Fe(110) sample (2 mm diameter) which then opened the possibility for the measurements of small lattice parameter changes of samples. The feasibility of the instrument for macro-and microstrain as well as grain size studies is demonstrated on the polycrystalline samples of low carbon shear deformed steel wires and the NiTi plates subjected to heat treatment. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2020
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