Advanced analysis of the deformation mechanisms in extruded magnesium alloys containing neodymium or yttrium

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10397780" target="_blank" >RIV/00216208:11320/19:10397780 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-hkCayc-T6" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-hkCayc-T6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2019.05.069" target="_blank" >10.1016/j.msea.2019.05.069</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Advanced analysis of the deformation mechanisms in extruded magnesium alloys containing neodymium or yttrium

Popis výsledku v původním jazyce

Deformation mechanisms during uniaxial compressive loading of two extruded binary Mg - 3Nd and Mg-3Y alloys (wt.%) were studied by advanced acoustic technique and electron microscopy. Particularly, a contribution of rare earth metals on the microstructure and resulting mechanical properties is addressed with respect to the extrusion direction. The extrusion of both investigated alloys was performed with the same processing parameters. Thus, the differences in initial microstructures and textures is caused by alloying elements. Consequently, deformation behavior of investigated alloys significantly depended on both the content of the alloy and mutual orientation of extrusion direction and deformation axis due to texture. The activity of individual deformation mechanisms during loading was elucidated using the acoustic emission (AE) technique including advanced adaptive sequential k-means (ASK) algorithm analysis. The results of the AE analysis were related to microstructure evolution provided by the electron backscatter diffraction (EBSD) technique, including Schmid factor analysis. The obtained results had shown that activity of the basal slip system was predominantly affected by the texture, whereas the activity of non-basal slip systems and twinning was dependent on both texture and type of rare earth metal in the alloy.

Název v anglickém jazyce

Advanced analysis of the deformation mechanisms in extruded magnesium alloys containing neodymium or yttrium

Popis výsledku anglicky

Deformation mechanisms during uniaxial compressive loading of two extruded binary Mg - 3Nd and Mg-3Y alloys (wt.%) were studied by advanced acoustic technique and electron microscopy. Particularly, a contribution of rare earth metals on the microstructure and resulting mechanical properties is addressed with respect to the extrusion direction. The extrusion of both investigated alloys was performed with the same processing parameters. Thus, the differences in initial microstructures and textures is caused by alloying elements. Consequently, deformation behavior of investigated alloys significantly depended on both the content of the alloy and mutual orientation of extrusion direction and deformation axis due to texture. The activity of individual deformation mechanisms during loading was elucidated using the acoustic emission (AE) technique including advanced adaptive sequential k-means (ASK) algorithm analysis. The results of the AE analysis were related to microstructure evolution provided by the electron backscatter diffraction (EBSD) technique, including Schmid factor analysis. The obtained results had shown that activity of the basal slip system was predominantly affected by the texture, whereas the activity of non-basal slip systems and twinning was dependent on both texture and type of rare earth metal in the alloy.

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

<a href="/cs/project/GA17-21855S" target="_blank" >GA17-21855S: Vylepšení mechanických vlastností protlačovaných hořčíkových slitin pomocí termomechanického zpracování</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Materials Science &amp; Engineering A: Structural Materials: Properties, Microstructure and Processing

ISSN

0921-5093

e-ISSN

—

Svazek periodika

759

Číslo periodika v rámci svazku

06

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

455-464

Kód UT WoS článku

000472813900049

EID výsledku v databázi Scopus

2-s2.0-85065906286