Influence of Deformation on Precipitation Kinetics in Mg-Tb Alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10129232" target="_blank" >RIV/00216208:11320/12:10129232 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.scientific.net/DDF.322.151" target="_blank" >http://www.scientific.net/DDF.322.151</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.322.151" target="_blank" >10.4028/www.scientific.net/DDF.322.151</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Deformation on Precipitation Kinetics in Mg-Tb Alloy

Popis výsledku v původním jazyce

Precipitation effects in age-hardenable Mg-13wt.%Tb alloy were investigated in this work. The solution treated alloy was subjected to isochronal annealing and decomposition of the supersaturated solid solution was investigated by positron annihilation spectroscopy combined with transmission electron microscopy, electrical resistometry, differential scanning calorimetry and microhardness measurements. Peak hardening was observed at 200oC due to precipitation of finely dispersed particles of ?'' phase with the D019 structure. Vacancy-like defects associated with ?'' phase particles were detected by positron annihilation. At higher temperatures precipitation of ?' and subsequently ? phase takes place. Formation of these phases lead to some additional hardening and introduces open volume defects at precipitate/matrix interfaces. To elucidate the effect of plastic deformation on the precipitation sequence we studied also a Mg-13wt.%Tb alloy with ultra fine grained structure prepared by high

Název v anglickém jazyce

Influence of Deformation on Precipitation Kinetics in Mg-Tb Alloy

Popis výsledku anglicky

Precipitation effects in age-hardenable Mg-13wt.%Tb alloy were investigated in this work. The solution treated alloy was subjected to isochronal annealing and decomposition of the supersaturated solid solution was investigated by positron annihilation spectroscopy combined with transmission electron microscopy, electrical resistometry, differential scanning calorimetry and microhardness measurements. Peak hardening was observed at 200oC due to precipitation of finely dispersed particles of ?'' phase with the D019 structure. Vacancy-like defects associated with ?'' phase particles were detected by positron annihilation. At higher temperatures precipitation of ?' and subsequently ? phase takes place. Formation of these phases lead to some additional hardening and introduces open volume defects at precipitate/matrix interfaces. To elucidate the effect of plastic deformation on the precipitation sequence we studied also a Mg-13wt.%Tb alloy with ultra fine grained structure prepared by high

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

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

322

Číslo periodika v rámci svazku

15.03.2012

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

151-162

Kód UT WoS článku

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EID výsledku v databázi Scopus

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