Influence of Natural Ageing on Precipitation Processes during Isochronal Annealing in MgGd alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10316181" target="_blank" >RIV/00216208:11320/15:10316181 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.365.42" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/DDF.365.42</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.365.42" target="_blank" >10.4028/www.scientific.net/DDF.365.42</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Natural Ageing on Precipitation Processes during Isochronal Annealing in MgGd alloys

Popis výsledku v původním jazyce

The Mg-10 wt. % Gd and Mg-15 wt. % Gd alloys produced by squeeze casting were solution treated at 500 oC for 8 hours and subsequently naturally aged for more than 2 months. Electrical resistivity of both materials measured at 77 K decreases, if the alloys are kept at room temperature after quenching from the solution temperature. This change accompanied by a microhardness increase almost saturates after 2 months and is caused most probably by solute atoms clustering. Phase transformations and microhardness changes were investigated during isochronal annealing in both naturally aged alloys in comparison to just solution treated ones. Electrical resistivity changes measured at 77 K were used to characterize microstructure development. Transmission electron microscopy was performed at selected states heat treated in the identical way. The Mg15Gd supersaturated solid solution isochronally annealed up to 500 oC immediately after the solution treatment decomposes into following successive ph

Název v anglickém jazyce

Influence of Natural Ageing on Precipitation Processes during Isochronal Annealing in MgGd alloys

Popis výsledku anglicky

The Mg-10 wt. % Gd and Mg-15 wt. % Gd alloys produced by squeeze casting were solution treated at 500 oC for 8 hours and subsequently naturally aged for more than 2 months. Electrical resistivity of both materials measured at 77 K decreases, if the alloys are kept at room temperature after quenching from the solution temperature. This change accompanied by a microhardness increase almost saturates after 2 months and is caused most probably by solute atoms clustering. Phase transformations and microhardness changes were investigated during isochronal annealing in both naturally aged alloys in comparison to just solution treated ones. Electrical resistivity changes measured at 77 K were used to characterize microstructure development. Transmission electron microscopy was performed at selected states heat treated in the identical way. The Mg15Gd supersaturated solid solution isochronally annealed up to 500 oC immediately after the solution treatment decomposes into following successive ph

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F10%2F0648" target="_blank" >GAP108/10/0648: Studium defektů v ikosaedrálních fázích v Mg slitinách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Defect and Diffusion Forum

ISSN

1012-0386

e-ISSN

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Svazek periodika

365

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

7

Strana od-do

42-48

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-84949639133