Elastic and plastic properties of ultrafine-grained magnesium
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10107765" target="_blank" >RIV/00216208:11320/11:10107765 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1504/IJMPT.2011.037209" target="_blank" >http://dx.doi.org/10.1504/IJMPT.2011.037209</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1504/IJMPT.2011.037209" target="_blank" >10.1504/IJMPT.2011.037209</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Elastic and plastic properties of ultrafine-grained magnesium
Popis výsledku v původním jazyce
Ultrafine-grained magnesium (UFG-Mg) samples were prepared by milling of powder in an inert atmosphere and subsequent compacted and hot extruded. The linear grain size estimated by X-ray line profile analysis was between 100 and 150 nm. Two developed peaks in the internal friction spectrum were obtained at temperatures about 375 K and about 631 K (1 Hz). The low temperature peak has dislocation origin, while the high temperature peak is conditioned by the grain boundary sliding. Compression tests were performed between room temperature and 300 degrees C. The yield stress as well as the maximum stress decreases with increasing temperature. The dislocation substructure of deformed samples was investigated by the high resolution X-ray diffraction peak profile analysis. The influence of cyclic bending on the damping behaviour of UFG-Mg was determined at room temperature. Nucleation and growth of cracks were manifested by a rapid increase of damping with increasing number of cycles.
Název v anglickém jazyce
Elastic and plastic properties of ultrafine-grained magnesium
Popis výsledku anglicky
Ultrafine-grained magnesium (UFG-Mg) samples were prepared by milling of powder in an inert atmosphere and subsequent compacted and hot extruded. The linear grain size estimated by X-ray line profile analysis was between 100 and 150 nm. Two developed peaks in the internal friction spectrum were obtained at temperatures about 375 K and about 631 K (1 Hz). The low temperature peak has dislocation origin, while the high temperature peak is conditioned by the grain boundary sliding. Compression tests were performed between room temperature and 300 degrees C. The yield stress as well as the maximum stress decreases with increasing temperature. The dislocation substructure of deformed samples was investigated by the high resolution X-ray diffraction peak profile analysis. The influence of cyclic bending on the damping behaviour of UFG-Mg was determined at room temperature. Nucleation and growth of cracks were manifested by a rapid increase of damping with increasing number of cycles.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BM - Fyzika pevných látek a magnetismus
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GA101%2F06%2F0768" target="_blank" >GA101/06/0768: Vyšetřování mikrostruktury materiálu metodami ultrazvukové spektroskopie</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2011
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
International Journal of Materials and Product Technology
ISSN
0268-1900
e-ISSN
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Svazek periodika
40
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
20
Strana od-do
120-139
Kód UT WoS článku
000285089300007
EID výsledku v databázi Scopus
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