Mechanical properties and microstructure evolution in ultrafine-grained AZ31 alloy processed by severe plastic deformation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10193496" target="_blank" >RIV/00216208:11320/13:10193496 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10853-013-7151-x" target="_blank" >http://dx.doi.org/10.1007/s10853-013-7151-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10853-013-7151-x" target="_blank" >10.1007/s10853-013-7151-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical properties and microstructure evolution in ultrafine-grained AZ31 alloy processed by severe plastic deformation

Popis výsledku v původním jazyce

Commercial MgAlZn alloy AZ31 was processed by two techniques of severe plastic deformation (SPD)-extrusion followed by equal channel angular pressing (EX-ECAP), and high pressure torsion (HPT). Processing by ECAP was conducted at elevated temperature of180 A degrees C for 1-12 passes following route B-C. HPT was applied at room temperature, and the specimens of the diameter of 19 mm with different number of turns (N = A1/4A -A 15) were prepared. Mechanical properties and grain fragmentation with straindue to EX-ECAP and HPT were investigated by Vickers microhardness measurements and transmission electron microscopy, respectively. Variations in dislocation density were investigated by positron annihilation spectroscopy. Differences in microhardness, grain refinement and dislocation density evolution resulting from principal differences of straining were found in the specimens. EX-ECAP resulted in homogeneous microstructure throughout the specimen's cross section as early as after four

Název v anglickém jazyce

Mechanical properties and microstructure evolution in ultrafine-grained AZ31 alloy processed by severe plastic deformation

Popis výsledku anglicky

Commercial MgAlZn alloy AZ31 was processed by two techniques of severe plastic deformation (SPD)-extrusion followed by equal channel angular pressing (EX-ECAP), and high pressure torsion (HPT). Processing by ECAP was conducted at elevated temperature of180 A degrees C for 1-12 passes following route B-C. HPT was applied at room temperature, and the specimens of the diameter of 19 mm with different number of turns (N = A1/4A -A 15) were prepared. Mechanical properties and grain fragmentation with straindue to EX-ECAP and HPT were investigated by Vickers microhardness measurements and transmission electron microscopy, respectively. Variations in dislocation density were investigated by positron annihilation spectroscopy. Differences in microhardness, grain refinement and dislocation density evolution resulting from principal differences of straining were found in the specimens. EX-ECAP resulted in homogeneous microstructure throughout the specimen's cross section as early as after four

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F09%2F0482" target="_blank" >GA106/09/0482: Mechanické vlastnosti a vývoj mikrostruktury ultrajemnozrnných hořčíkových slitin připravených různými technologiemi</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Science

ISSN

0022-2461

e-ISSN

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Svazek periodika

48

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

4705-4712

Kód UT WoS článku

000317367200032

EID výsledku v databázi Scopus

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