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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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