Evaluation of X-ray Bragg peak profiles with the variance method obtained by in situ measurement on Mg-Al alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00523926" target="_blank" >RIV/61389005:_____/20:00523926 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/20:10420279

Výsledek na webu

<a href="https://doi.org/" target="_blank" >https://doi.org/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1107/S1600576720000709" target="_blank" >10.1107/S1600576720000709</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of X-ray Bragg peak profiles with the variance method obtained by in situ measurement on Mg-Al alloys

Popis výsledku v původním jazyce

The microstructural evolution in randomly oriented Mg-Al samples is investigated in situ during compression by X-ray diffraction as a function of Al concentration. The diffraction data are evaluated by the variance method, which provides information about the dislocation density and spatial distribution of the dislocations. The dislocation density increases with increasing alloying content. Since the increment of the dislocation density above the yield point is linear, the mutual dislocation interaction type is determined from the Taylor equation. The results indicate the dominance of basal-basal dislocation interactions, but at higher alloying content the share of the basal-non-basal interactions increases. It is shown that the dynamics of dislocation wall formation also depend on Al content. Transmission electron microscopy observations are in agreement with the results obtained by X-ray line profile analysis.

Název v anglickém jazyce

Evaluation of X-ray Bragg peak profiles with the variance method obtained by in situ measurement on Mg-Al alloys

Popis výsledku anglicky

The microstructural evolution in randomly oriented Mg-Al samples is investigated in situ during compression by X-ray diffraction as a function of Al concentration. The diffraction data are evaluated by the variance method, which provides information about the dislocation density and spatial distribution of the dislocations. The dislocation density increases with increasing alloying content. Since the increment of the dislocation density above the yield point is linear, the mutual dislocation interaction type is determined from the Taylor equation. The results indicate the dominance of basal-basal dislocation interactions, but at higher alloying content the share of the basal-non-basal interactions increases. It is shown that the dynamics of dislocation wall formation also depend on Al content. Transmission electron microscopy observations are in agreement with the results obtained by X-ray line profile analysis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Crystallography

ISSN

0021-8898

e-ISSN

1600-5767

Svazek periodika

53

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

360-368

Kód UT WoS článku

000524119500006

EID výsledku v databázi Scopus

2-s2.0-85083026080