Thermal fatigue of AX41 magnesium alloy based composite using thermal expansivity measurements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10082196" target="_blank" >RIV/00216208:11320/10:10082196 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermal fatigue of AX41 magnesium alloy based composite using thermal expansivity measurements

Popis výsledku v původním jazyce

Magnesium alloy AX41 (Mg-4Al-1Ca in wt. %) reinforced with 15 vol% of short Saffil fibres was used in this study. Thermal expansion was measured over a wide temperature range from 25 up to 400 °C in four runs. The thermal expansion coefficient was estimated during heating and cooling. The Young's modulus of the composite was estimated by the measurements of the resonant frequency of the free vibrations of the sample. Samples for these measurements were thermally cycled between room temperature and an increasing upper temperature of the thermal cycle. The modulus defect estimated from the difference between the resonant frequency before the thermal cycling and after cycling was compared with the relative change of the thermal expansion coefficient. Similar course of the temperature dependence of both quantities indicates that the deviation from the linearity has the common reason: thermal stresses and increased dislocation density.

Název v anglickém jazyce

Thermal fatigue of AX41 magnesium alloy based composite using thermal expansivity measurements

Popis výsledku anglicky

Magnesium alloy AX41 (Mg-4Al-1Ca in wt. %) reinforced with 15 vol% of short Saffil fibres was used in this study. Thermal expansion was measured over a wide temperature range from 25 up to 400 °C in four runs. The thermal expansion coefficient was estimated during heating and cooling. The Young's modulus of the composite was estimated by the measurements of the resonant frequency of the free vibrations of the sample. Samples for these measurements were thermally cycled between room temperature and an increasing upper temperature of the thermal cycle. The modulus defect estimated from the difference between the resonant frequency before the thermal cycling and after cycling was compared with the relative change of the thermal expansion coefficient. Similar course of the temperature dependence of both quantities indicates that the deviation from the linearity has the common reason: thermal stresses and increased dislocation density.

Druh

O - Ostatní výsledky

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)

Rok uplatnění

2010

Kód důvěrnosti údajů

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