Grain refinement of AZ61 alloy after ECAP processing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10229656" target="_blank" >RIV/61989100:27360/17:10229656 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27230/17:10229656

Výsledek na webu

<a href="https://www.scientific.net/MSF.891.372" target="_blank" >https://www.scientific.net/MSF.891.372</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.891.372" target="_blank" >10.4028/www.scientific.net/MSF.891.372</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Grain refinement of AZ61 alloy after ECAP processing

Popis výsledku v původním jazyce

Electron microscopy techniques were used to characterize the microstructure and deformation behavior of AZ61 alloy proceeded by ECAP. The commercial AZ61 alloy subjected to severe plastic deformation possesses a two-phase microstructure consisting of solid solution matrix and massive γ-phase Mg17Al12, or Mg17(Al,Zn)12 distributed mostly at grain boundaries. Based on selected area diffraction and electron back scattered diffraction applied to a sample after the third pass, it can be concluded that plastic deformation induced by ECAP occurs mainly by slip mode forming a high density network of dislocation inside the grains. The grains size was significantly refined to 1.4 µm after the third pass of ECAP. The refinement of grain size is probably due to polygonization process associated with formation of high angle grain boundaries due to dislocations rearrangement. Mg17(Al, Zn)12 precipitates of size scattered from 100 to 200 nm and also the primary precipitates of Al6Mn phase were observed in this alloy.

Název v anglickém jazyce

Grain refinement of AZ61 alloy after ECAP processing

Popis výsledku anglicky

Electron microscopy techniques were used to characterize the microstructure and deformation behavior of AZ61 alloy proceeded by ECAP. The commercial AZ61 alloy subjected to severe plastic deformation possesses a two-phase microstructure consisting of solid solution matrix and massive γ-phase Mg17Al12, or Mg17(Al,Zn)12 distributed mostly at grain boundaries. Based on selected area diffraction and electron back scattered diffraction applied to a sample after the third pass, it can be concluded that plastic deformation induced by ECAP occurs mainly by slip mode forming a high density network of dislocation inside the grains. The grains size was significantly refined to 1.4 µm after the third pass of ECAP. The refinement of grain size is probably due to polygonization process associated with formation of high angle grain boundaries due to dislocations rearrangement. Mg17(Al, Zn)12 precipitates of size scattered from 100 to 200 nm and also the primary precipitates of Al6Mn phase were observed in this alloy.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/EE2.3.20.0038" target="_blank" >EE2.3.20.0038: Tvorba mezinárodního vědeckého týmu a zapojování do vědeckých sítí v oblasti nanotechnologií a nekonvenčního tváření materiálu</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Materials science forum. Volume 891

ISSN

0255-5476

e-ISSN

—

Svazek periodika

891

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

372-376

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85016978197