Microstructures and mechanical properties of Mg-Zn-Y alloy consolidated from gas-atomized powders using high-pressure torsion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10130255" target="_blank" >RIV/00216208:11320/12:10130255 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10853-012-6408-0" target="_blank" >http://dx.doi.org/10.1007/s10853-012-6408-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10853-012-6408-0" target="_blank" >10.1007/s10853-012-6408-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microstructures and mechanical properties of Mg-Zn-Y alloy consolidated from gas-atomized powders using high-pressure torsion

Popis výsledku v původním jazyce

In this paper, rapid solidified Mg95Zn4.3Y0.7 (at.%) alloy powders produced by an inert gas atomizer were consolidated using a severe plastic deformation technique of high pressure torsion (HPT) at room temperature and 373 K. The behavior of powder consolidation, matrix microstructural evolution, and mechanical properties of the powders and compacts were investigated using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, microhardness, and tensile testing. As the HPT processing temperature increases, the powders are more plastically deformed due to decreased deformation resistance, grain boundaries are more in equilibrium, powder bonding is enhanced due to increased interparticle diffusion, hence, tensile ductility andstrength increases. On the other hand, hardness decreases with the increased processing temperature, due to less dislocation density.

Název v anglickém jazyce

Microstructures and mechanical properties of Mg-Zn-Y alloy consolidated from gas-atomized powders using high-pressure torsion

Popis výsledku anglicky

In this paper, rapid solidified Mg95Zn4.3Y0.7 (at.%) alloy powders produced by an inert gas atomizer were consolidated using a severe plastic deformation technique of high pressure torsion (HPT) at room temperature and 373 K. The behavior of powder consolidation, matrix microstructural evolution, and mechanical properties of the powders and compacts were investigated using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, microhardness, and tensile testing. As the HPT processing temperature increases, the powders are more plastically deformed due to decreased deformation resistance, grain boundaries are more in equilibrium, powder bonding is enhanced due to increased interparticle diffusion, hence, tensile ductility andstrength increases. On the other hand, hardness decreases with the increased processing temperature, due to less dislocation density.

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

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

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

47

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

7117-7123

Kód UT WoS článku

000307342000011

EID výsledku v databázi Scopus

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