Investigation of titanium grade (Ti-Gr) polycrystalline samples by high-resolution three-axis neutron diffractometer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F25%3AN0000016" target="_blank" >RIV/26316919:_____/25:N0000016 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389005:_____/25:00645742

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2452321625005293" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452321625005293</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2025.10.034" target="_blank" >10.1016/j.prostr.2025.10.034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of titanium grade (Ti-Gr) polycrystalline samples by high-resolution three-axis neutron diffractometer

Popis výsledku v původním jazyce

New focusing 3-axis diffractometer set-up equipped with the bent-perfect-crystal (BPC) monochromator and analyzer with the sample situated in between which has offered the sensitivity in determination of strains ?d / d < 10-4 in polycrystalline materials, has been introduced recently. The resolution determined by FWHM of the diffraction profiles is about one order of magnitude higher with respect to that of conventional 2-axis neutron strain/stress scanners. Therefore, the new set-up also offers the possibility of line profile analysis for relatively large irradiated gauge volumes and reasonable counting times, because the 3-axis set-up exploits focusing in real and momentum space simultaneously. The analysis is carried out by rocking the BPC analyzer, which provides the diffraction profile characterizing the sample. The neutron signal is registered by a point detector. In this case Titanium Grade 2 polycrystalline samples exposed to an external load by CONFORM-ECAP (C-E) and the Rotary Swaging (RS) were investigated. The influence of plastic deformation on the measured diffraction profiles is documented.

Název v anglickém jazyce

Investigation of titanium grade (Ti-Gr) polycrystalline samples by high-resolution three-axis neutron diffractometer

Popis výsledku anglicky

New focusing 3-axis diffractometer set-up equipped with the bent-perfect-crystal (BPC) monochromator and analyzer with the sample situated in between which has offered the sensitivity in determination of strains ?d / d < 10-4 in polycrystalline materials, has been introduced recently. The resolution determined by FWHM of the diffraction profiles is about one order of magnitude higher with respect to that of conventional 2-axis neutron strain/stress scanners. Therefore, the new set-up also offers the possibility of line profile analysis for relatively large irradiated gauge volumes and reasonable counting times, because the 3-axis set-up exploits focusing in real and momentum space simultaneously. The analysis is carried out by rocking the BPC analyzer, which provides the diffraction profile characterizing the sample. The neutron signal is registered by a point detector. In this case Titanium Grade 2 polycrystalline samples exposed to an external load by CONFORM-ECAP (C-E) and the Rotary Swaging (RS) were investigated. The influence of plastic deformation on the measured diffraction profiles is documented.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

11th International Conference on Materials Structure and Micromechanics of Fracture, MSMF 2025

ISBN

—

ISSN

2452-3216

e-ISSN

—

Počet stran výsledku

6

Strana od-do

56 - 61

Název nakladatele

Elsevier B.V.

Místo vydání

neuveden

Místo konání akce

Brno

Datum konání akce

23. 6. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—