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%2F00216208%3A11320%2F25%3A10510129" target="_blank" >RIV/00216208:11320/25:10510129 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=okkDO2wSlz" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=okkDO2wSlz</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 Δd/d &lt; 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 Δd/d &lt; 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

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Procedia Structural Integrity

ISSN

2452-3216

e-ISSN

2452-3216

Svazek periodika

74

Číslo periodika v rámci svazku

Dec

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

56-61

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-105025025667