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Open AccessArticle

Strengthening and Thermally Activated Processes in an AX61/Saffil Metal Matrix Composite

1
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16 Praha 2, Czech Republic
2
Comtes FHT, Průmyslová 996, 334 41 Dobřany, Czech Republic
3
Directorate G—Nuclear Safety and Security, Joint Research Center, Westerduinweg 3, NL-1755ZG Petten, The Netherlands
*
Author to whom correspondence should be addressed.
Crystals 2020, 10(6), 466; https://doi.org/10.3390/cryst10060466
Received: 16 April 2020 / Revised: 10 May 2020 / Accepted: 13 May 2020 / Published: 1 June 2020
(This article belongs to the Special Issue Study Properties of Hexagonal Single Crystals and Polycrystals)
AX61 magnesium alloy was reinforced with short Saffil fibres using squeeze cast technology. Samples were cut from the casting in two directions: parallel and perpendicular to the fibre plane. Samples were deformed in compression at various temperatures from room temperature to 300 °C. Various strengthening mechanisms such as load transfer, increased dislocation density, Orowan and Hall–Petch strengthening were analysed. During deformation, the stress relaxation tests were subsequently performed. The relaxation curves were evaluated with respect to Li and Feltham equations with the aim to find stress components in matrix and parameters of the thermally activated process(es). View Full-Text
Keywords: AX61 magnesium alloy; compressive deformation; stress relaxation; thermally activated processes; composite strengthening AX61 magnesium alloy; compressive deformation; stress relaxation; thermally activated processes; composite strengthening
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MDPI and ACS Style

Trojanová, Z.; Száraz, Z.; Lukáč, P.; Drozd, Z.; Džugan, J. Strengthening and Thermally Activated Processes in an AX61/Saffil Metal Matrix Composite. Crystals 2020, 10, 466.

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