PRECIPITATION KINETICS IN Mg-Gd ALLOY AFTER NATURAL AGEING
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10284876" target="_blank" >RIV/00216208:11320/14:10284876 - isvavai.cz</a>
Výsledek na webu
<a href="http://www.metal2014.com/files/proceedings/17/reports/2679.pdf" target="_blank" >http://www.metal2014.com/files/proceedings/17/reports/2679.pdf</a>
DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
PRECIPITATION KINETICS IN Mg-Gd ALLOY AFTER NATURAL AGEING
Popis výsledku v původním jazyce
Annealing at ambient temperature connected with a substantial degree of strengthening (natural ageing) is well known and investigated in Al-based alloys. Clustering of solute atoms at room temperature proven by atom probe tomography is believed to be assisted by vacancies quenched in material from high annealing temperature. This process has often a very deteriorating effect on further precipitation during artificial ageing of Al alloys. Natural ageing is not common in Mg-based alloys contrary to Al hardenable alloys. Two squeeze cast Mg-Gd alloys with different Gd content were solution heat treated. The increase of solute concentration in the matrix during the treatment was monitored by electrical resistivity measurements. Microhardness decrease during the solution heat treatment corresponds to dissolution of secondary phases combined with solid solution hardening. Electrical resistivity of both alloys measured at 77 K decreases, if the alloys are kept at room temperature immediately
Název v anglickém jazyce
PRECIPITATION KINETICS IN Mg-Gd ALLOY AFTER NATURAL AGEING
Popis výsledku anglicky
Annealing at ambient temperature connected with a substantial degree of strengthening (natural ageing) is well known and investigated in Al-based alloys. Clustering of solute atoms at room temperature proven by atom probe tomography is believed to be assisted by vacancies quenched in material from high annealing temperature. This process has often a very deteriorating effect on further precipitation during artificial ageing of Al alloys. Natural ageing is not common in Mg-based alloys contrary to Al hardenable alloys. Two squeeze cast Mg-Gd alloys with different Gd content were solution heat treated. The increase of solute concentration in the matrix during the treatment was monitored by electrical resistivity measurements. Microhardness decrease during the solution heat treatment corresponds to dissolution of secondary phases combined with solid solution hardening. Electrical resistivity of both alloys measured at 77 K decreases, if the alloys are kept at room temperature immediately
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
JG - Hutnictví, kovové materiály
OECD FORD obor
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Návaznosti výsledku
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
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
METAL 2014, 23rd International Conferenceon Metallurgy and Materials, Conference proceedings
ISBN
978-80-87294-54-3
ISSN
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e-ISSN
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Počet stran výsledku
6
Strana od-do
1277-1282
Název nakladatele
Tanger, Ltd.
Místo vydání
Ostrava
Místo konání akce
Brno
Datum konání akce
21. 5. 2014
Typ akce podle státní příslušnosti
EUR - Evropská akce
Kód UT WoS článku
000350641700211