Increased structural stability in twin-roll cast AZ31 magnesium alloy processed by equal channel angular pressing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000039" target="_blank" >RIV/26722445:_____/19:N0000039 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/19:10405901
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1044580319303948" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1044580319303948</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matchar.2019.05.006" target="_blank" >10.1016/j.matchar.2019.05.006</a>
Alternative languages
Result language
angličtina
Original language name
Increased structural stability in twin-roll cast AZ31 magnesium alloy processed by equal channel angular pressing
Original language description
The present paper reports an effect of ECAP on the microstructure of the AZ31 magnesium alloy prepared in two conditions: conventionally cast and twin-roll cast. Subsequently, the thermal stability of fine-grained conditions was investigated with a special regard to microhardness, grain structure and dislocation density changes. Similar processing conditions of ECAP resulted in achieving similar average grain size for both initial conditions regardless differences in the initial microstructure. The only difference in the microstructure of a fine-grained condition was a distribution of beta-Al12Mg17 secondary phase particles. Isochronal annealing in the temperature range 160-500 degrees C showed differences in the response of individual fine-grained samples to the temperature increase. It was proven that these differences primarily originated from the different distribution of secondary phase particles, which significantly affected static recovery and grain growth. Consequently, the thermal stability of fine-grained structure was much better in twin-roll cast samples in the temperature range 220-340 degrees C. Exceeding 340 degrees C, accelerated dissolution of beta-Al12Mg17 phase resulted in a similar evolution of all studied parameters showing that distribution of secondary phase particles is a crucial parameter of thermal stability of fine-grained AZ31 magnesium alloy.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Characterization
ISSN
1044-5803
e-ISSN
1873-4189
Volume of the periodical
153
Issue of the periodical within the volume
July
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
199-207
UT code for WoS article
000472696900023
EID of the result in the Scopus database
2-s2.0-85065446289