TY - GEN
T1 - Characterization of deformation mechanics and microstructure evolution during indirect extrusion in small length scales
AU - Moradi, Marzyeh
AU - Basu, Saurabh
AU - Shankar, M. Ravi
N1 - Publisher Copyright:
Copyright © 2015 by ASME.
PY - 2015
Y1 - 2015
N2 - In situ characterization of mechanics of deformation including dynamic strain, strain-rate and rotation of material elements was performed in prototypical small length-scale forming operation- indirect extrusion (IE) of commercially pure Lead (Pb) and Aluminum (Al 1100) using Digital Image Correlation (DIC) technique. Effects of scaling and deformation rate over a range of dimensions and velocities on mechanical response of CP Pb and the resultant anomalies were studied. Additionally, previous and post-deformation characterization of microstructure in Al was accomplished by performing Orientation Imaging Microscopy (OIM) on workpiece materials with different grain sizes. Finally, In situ characterization aided by high speed imaging of indirect extrusion of Al coupled with a Visco-Plastic Self-Consistent (VPSC) model was used to predict the evolved textures in various regions of deformation zone and the results were compared to OIM observations.
AB - In situ characterization of mechanics of deformation including dynamic strain, strain-rate and rotation of material elements was performed in prototypical small length-scale forming operation- indirect extrusion (IE) of commercially pure Lead (Pb) and Aluminum (Al 1100) using Digital Image Correlation (DIC) technique. Effects of scaling and deformation rate over a range of dimensions and velocities on mechanical response of CP Pb and the resultant anomalies were studied. Additionally, previous and post-deformation characterization of microstructure in Al was accomplished by performing Orientation Imaging Microscopy (OIM) on workpiece materials with different grain sizes. Finally, In situ characterization aided by high speed imaging of indirect extrusion of Al coupled with a Visco-Plastic Self-Consistent (VPSC) model was used to predict the evolved textures in various regions of deformation zone and the results were compared to OIM observations.
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U2 - 10.1115/MSEC20159473
DO - 10.1115/MSEC20159473
M3 - Conference contribution
AN - SCOPUS:84945143592
T3 - ASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015
BT - Materials; Biomanufacturing; Properties, Applications and Systems; Sustainable Manufacturing
PB - American Society of Mechanical Engineers
T2 - ASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015
Y2 - 8 June 2015 through 12 June 2015
ER -