Growth kinetics of omega particles in beta-Ti matrix studied by in situ small-angle X-ray scattering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10313484" target="_blank" >RIV/00216208:11320/15:10313484 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.actamat.2015.08.014" target="_blank" >http://dx.doi.org/10.1016/j.actamat.2015.08.014</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.actamat.2015.08.014" target="_blank" >10.1016/j.actamat.2015.08.014</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Growth kinetics of omega particles in beta-Ti matrix studied by in situ small-angle X-ray scattering

Popis výsledku v původním jazyce

Nucleation and growth kinetics of nanoparticles of hexagonal omega phase in a body-centered cubic beta titanium matrix in single crystals of beta-Ti alloys were investigated by small-angle X-ray scattering measured in situ during ageing at various temperatures up to 450 degrees C. The experimental data were compared with numerical simulations based on a three-dimensional short-range order model of nanoparticle self-ordering. The X-ray contrast of the particles is caused by an inhomogeneous distributionof impurity atoms (Mo, Fe and Al), whose density profile around growing nanoparticles was simulated by solving the corresponding diffusion equation with moving boundary conditions. From the analysis of the experimental data we determined the mean distance and size of the nanoparticles and confirmed the validity of the alpha t(1/3) OP growth law following from the Lifshitz-Slyozov-Wagner theory. From a detailed comparison of the experimental data with simulations we also assessed the diff

Název v anglickém jazyce

Growth kinetics of omega particles in beta-Ti matrix studied by in situ small-angle X-ray scattering

Popis výsledku anglicky

Nucleation and growth kinetics of nanoparticles of hexagonal omega phase in a body-centered cubic beta titanium matrix in single crystals of beta-Ti alloys were investigated by small-angle X-ray scattering measured in situ during ageing at various temperatures up to 450 degrees C. The experimental data were compared with numerical simulations based on a three-dimensional short-range order model of nanoparticle self-ordering. The X-ray contrast of the particles is caused by an inhomogeneous distributionof impurity atoms (Mo, Fe and Al), whose density profile around growing nanoparticles was simulated by solving the corresponding diffusion equation with moving boundary conditions. From the analysis of the experimental data we determined the mean distance and size of the nanoparticles and confirmed the validity of the alpha t(1/3) OP growth law following from the Lifshitz-Slyozov-Wagner theory. From a detailed comparison of the experimental data with simulations we also assessed the diff

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Acta Materialia

ISSN

1359-6454

e-ISSN

—

Svazek periodika

100

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

126-134

Kód UT WoS článku

000362616400014

EID výsledku v databázi Scopus

2-s2.0-84941363467