TY - GEN
T1 - Quantification of microstructure-properties-behavior relations in magnesium alloys using a hybrid approach
AU - Hazeli, K.
AU - Cuadra, J.
AU - Vanniamparambil, P. A.
AU - Carmi, R.
AU - Kontsos, A.
PY - 2014
Y1 - 2014
N2 - This study presents a hybrid experimental mechanics approach combining multi-scale mechanical testing, in situ nondestructive evaluation and targeted microscopic quantification to identify and quantify critical microstructural parameters that affect properties and overall plasticity of Mg alloys. Room temperature monotonic and cyclic experiments monitored by Digital Image Correlation (DIC) coupled with Acoustic Emission (AE) of Mg Alloys of the AZ series were used for this investigation. Data obtained using the optico-acoustic nondestructive system revealed for the first time the direct connection between surface strain localization effects similar to Luder's bands and pronounced twin activity. Electron Back Scatter Diffraction (EBSD) measurements showed the profuse and spatially inhomogeneous nature of twinning at early stages of plasticity which is related with the onset of yielding and the macroscopic plateau region in the stress-strain curve. Furthermore, twinning/detwinning activity was identified in several grains of tested specimens and during characteristic points of fatigue cycles.
AB - This study presents a hybrid experimental mechanics approach combining multi-scale mechanical testing, in situ nondestructive evaluation and targeted microscopic quantification to identify and quantify critical microstructural parameters that affect properties and overall plasticity of Mg alloys. Room temperature monotonic and cyclic experiments monitored by Digital Image Correlation (DIC) coupled with Acoustic Emission (AE) of Mg Alloys of the AZ series were used for this investigation. Data obtained using the optico-acoustic nondestructive system revealed for the first time the direct connection between surface strain localization effects similar to Luder's bands and pronounced twin activity. Electron Back Scatter Diffraction (EBSD) measurements showed the profuse and spatially inhomogeneous nature of twinning at early stages of plasticity which is related with the onset of yielding and the macroscopic plateau region in the stress-strain curve. Furthermore, twinning/detwinning activity was identified in several grains of tested specimens and during characteristic points of fatigue cycles.
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U2 - 10.1002/9781118888179.ch26
DO - 10.1002/9781118888179.ch26
M3 - Conference contribution
AN - SCOPUS:84899878027
SN - 9781118888162
T3 - Magnesium Technology
SP - 121
EP - 124
BT - Magnesium Technology 2014 - Held During TMS 2014 143rd Annual Meeting and Exhibition
PB - Minerals, Metals and Materials Society
T2 - Magnesium Technology 2014 - TMS 2014 143rd Annual Meeting and Exhibition
Y2 - 16 February 2014 through 20 February 2014
ER -