Influence of temperature of ECAP processing on the microstructure and microhardness of as-cast AX41 alloy
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10405689" target="_blank" >RIV/00216208:11320/20:10405689 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=jOfocQ4WGd" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=jOfocQ4WGd</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10853-019-04171-7" target="_blank" >10.1007/s10853-019-04171-7</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Influence of temperature of ECAP processing on the microstructure and microhardness of as-cast AX41 alloy
Popis výsledku v původním jazyce
The influence of the temperature of ECAP processing on the microstructure and mechanical properties of commercial as-cast AX41 magnesium was investigated. ECAP processing was conducted at temperatures of 220 degrees C and 250 degrees C up to N = 8 passes via route Bc. The original grain size of 200 mu m was found to decrease with increasing number of passes at both temperatures. After 8 passes, the grain size of 1.4 mu m and 2.6 mu m was obtained at 220 degrees C and 250 degrees C, respectively. This difference was attributed to the suppressed dynamic recrystallization for N > 2 caused by substantial decrease in dislocation density of 101 over bar 0112 over bar 0 pyramidal <a>-type edge dislocations and more pronounced high-temperature grain growth at 250 degrees C. Despite the different grain sizes, similar crystallographic textures and dislocation densities were observed at both temperatures after 8 passes. The microhardness values increased up to 4 passes at both temperatures in accordance with the variation of the grain size, indicating the dominance of Hall-Petch strengthening.
Název v anglickém jazyce
Influence of temperature of ECAP processing on the microstructure and microhardness of as-cast AX41 alloy
Popis výsledku anglicky
The influence of the temperature of ECAP processing on the microstructure and mechanical properties of commercial as-cast AX41 magnesium was investigated. ECAP processing was conducted at temperatures of 220 degrees C and 250 degrees C up to N = 8 passes via route Bc. The original grain size of 200 mu m was found to decrease with increasing number of passes at both temperatures. After 8 passes, the grain size of 1.4 mu m and 2.6 mu m was obtained at 220 degrees C and 250 degrees C, respectively. This difference was attributed to the suppressed dynamic recrystallization for N > 2 caused by substantial decrease in dislocation density of 101 over bar 0112 over bar 0 pyramidal <a>-type edge dislocations and more pronounced high-temperature grain growth at 250 degrees C. Despite the different grain sizes, similar crystallographic textures and dislocation densities were observed at both temperatures after 8 passes. The microhardness values increased up to 4 passes at both temperatures in accordance with the variation of the grain size, indicating the dominance of Hall-Petch strengthening.
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
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)
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Materials Science
ISSN
0022-2461
e-ISSN
—
Svazek periodika
55
Číslo periodika v rámci svazku
7
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
12
Strana od-do
04171
Kód UT WoS článku
000495235100002
EID výsledku v databázi Scopus
2-s2.0-85076268109