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Study of the loading mode dependence of the twinning in random textured cast magnesium by acoustic emission and neutron diffraction methods.

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Název: Study of the loading mode dependence of the twinning in random textured cast magnesium by acoustic emission and neutron diffraction methods.
Autoři: Čapek, Jan1 jan.capek@centrum.cz, Máthis, Kristián1, Clausen, Bjørn2, Stráská, Jitka1, Beran, Přemysl3, Lukáš, Petr3
Zdroj: Materials Science & Engineering: A. Apr2014, Vol. 602, p25-32. 8p.
Témata: *MAGNESIUM castings, *TWINNING (Crystallography), *METALS, *CRYSTAL texture, *ACOUSTIC emission, *NEUTRON diffraction, *MECHANICAL loads, *EFFECT of temperature on metals, *CRYSTAL growth
Abstrakt: Abstract: The twinning activity in random textured cast magnesium during monotonic, room temperature tension and compression tests was monitored by acoustic emission (AE) and neutron diffraction (ND). The AE detected higher twin nucleation activity in tension than in compression. The correlation of AE with the ND data indicates that in compression the nucleation of twins is followed by rapid growth, unlike in tension in which twin variants with limited growth were observed. [Copyright &y& Elsevier]
Databáze: Academic Search Index
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Abstrakt:Abstract: The twinning activity in random textured cast magnesium during monotonic, room temperature tension and compression tests was monitored by acoustic emission (AE) and neutron diffraction (ND). The AE detected higher twin nucleation activity in tension than in compression. The correlation of AE with the ND data indicates that in compression the nucleation of twins is followed by rapid growth, unlike in tension in which twin variants with limited growth were observed. [Copyright &y& Elsevier]
ISSN:09215093
DOI:10.1016/j.msea.2014.02.051