Twinning Evolution as a Function of Loading Direction in Magnesium
J. Čapeka, J. Stráská a, B. Clausen b, K. Máthis a
aDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech Republic
bLos Alamos National Laboratory, Lujan Neutron Scattering Center, Los Alamos, NM 87545, USA
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The twinning activity in random textured cast magnesium during monotonic, room temperature tension and compression tests was monitored by neutron diffraction. Decrease of integrated intensity which characterizes the twinned volume fraction of selected reflections was compared to its Schmid factor. The comparison shows that twinned fraction correlates with the maximum value of the Schmid factor with high precision during tensile test and with the average value of the Schmid factor during compression test.

DOI: 10.12693/APhysPolA.128.762
PACS numbers: 81.05.Bx,, 61.72.Mm