Effect of deformation on evolution of Al-3(Er,Zr) precipitates in Al-Er-Zr-based alloy
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10455388" target="_blank" >RIV/00216208:11320/22:10455388 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61389021:_____/22:00555592
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=4YYSGYbpUo" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=4YYSGYbpUo</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matchar.2022.111781" target="_blank" >10.1016/j.matchar.2022.111781</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Effect of deformation on evolution of Al-3(Er,Zr) precipitates in Al-Er-Zr-based alloy
Popis výsledku v původním jazyce
The effect of cold-rolling and high-temperature aging on precipitation processes in an Al-Er-Zr alloy was investigated by microhardness and resistivity measurements, scanning electron microscopy, (scanning) transmission electron microscopy and X-ray diffraction. Many similarities with the Al-Sc-Zr system have been shown. Based on the obtained results, following decomposition sequence of supersaturated solid solution of the Al-Er-Zr-based alloy has been proposed: Er-rich clusters -> Al3Er phase -> layer rich in Zr (Al-3(Er,Zr) phase). Cold-rolling enhances the precipitation of Al3Er particles and accelerates the process identified as formation of the Zr-rich shell around the Er-rich core of Al-3(Er,Zr) precipitates. The effect of precipitation strengthening is negligible compared to the effect of work hardening as the supersaturation of Er in the Al matrix was probably considerably lowered by formation of Er-rich primary precipitates observed in the as-prepared state of the alloys studied. The core-shell structure of the Al-3(Er,Zr) particles formed after 2 and 4 h of aging at 600 ? was confirmed by Z contrast imaging and X-ray energy dispersive spectroscopy. The coherency strain-field around the precipitates is retained even after 4 h of aging at 600 ?. The Er/Zr atomic ratio of the precipitates was estimated based on their lattice constant.
Název v anglickém jazyce
Effect of deformation on evolution of Al-3(Er,Zr) precipitates in Al-Er-Zr-based alloy
Popis výsledku anglicky
The effect of cold-rolling and high-temperature aging on precipitation processes in an Al-Er-Zr alloy was investigated by microhardness and resistivity measurements, scanning electron microscopy, (scanning) transmission electron microscopy and X-ray diffraction. Many similarities with the Al-Sc-Zr system have been shown. Based on the obtained results, following decomposition sequence of supersaturated solid solution of the Al-Er-Zr-based alloy has been proposed: Er-rich clusters -> Al3Er phase -> layer rich in Zr (Al-3(Er,Zr) phase). Cold-rolling enhances the precipitation of Al3Er particles and accelerates the process identified as formation of the Zr-rich shell around the Er-rich core of Al-3(Er,Zr) precipitates. The effect of precipitation strengthening is negligible compared to the effect of work hardening as the supersaturation of Er in the Al matrix was probably considerably lowered by formation of Er-rich primary precipitates observed in the as-prepared state of the alloys studied. The core-shell structure of the Al-3(Er,Zr) particles formed after 2 and 4 h of aging at 600 ? was confirmed by Z contrast imaging and X-ray energy dispersive spectroscopy. The coherency strain-field around the precipitates is retained even after 4 h of aging at 600 ?. The Er/Zr atomic ratio of the precipitates was estimated based on their lattice constant.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Materials Characterization
ISSN
1044-5803
e-ISSN
—
Svazek periodika
186
Číslo periodika v rámci svazku
186
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
12
Strana od-do
111781
Kód UT WoS článku
000808795900001
EID výsledku v databázi Scopus
2-s2.0-85124252736