Amplitude-dependent internal friction in AZ31 alloy sheets submitted to accumulative roll bonding

Fine grained magnesium alloy AZ31 sheets were submitted to the accumulative roll bonding (ARB). After ARB, the microstructure of samples was refined, and the sheets exhibited pronounced texture. The amplitude-dependent internal friction (ADIF) was measured at room temperature. Microstructure changes...

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Veröffentlicht in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2018-09, Vol.44 (9), p.966-972
Hauptverfasser: Trojanová, Z., Drozd, Z., Lukáč, P., Minárik, P., Džugan, J., Halmešová, K.
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container_issue 9
container_start_page 966
container_title Low temperature physics (Woodbury, N.Y.)
container_volume 44
creator Trojanová, Z.
Drozd, Z.
Lukáč, P.
Minárik, P.
Džugan, J.
Halmešová, K.
description Fine grained magnesium alloy AZ31 sheets were submitted to the accumulative roll bonding (ARB). After ARB, the microstructure of samples was refined, and the sheets exhibited pronounced texture. The amplitude-dependent internal friction (ADIF) was measured at room temperature. Microstructure changes as the increased dislocation density, grain size refinement, twins, and texture influenced the ADIF. A significant anisotropy of the properties was observed. Experimental results are discussed on the base of physical mechanisms responsible for internal friction.
doi_str_mv 10.1063/1.5052686
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subjects Amplitudes
Anisotropy
Dislocation density
Friction
Internal friction
Magnesium base alloys
Metal sheets
Microstructure
Roll bonding
Texture
title Amplitude-dependent internal friction in AZ31 alloy sheets submitted to accumulative roll bonding
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