TY - GEN
T1 - The microstructural effects on magnesium alloy AZ31B-O while undergoing an electrically-assisted manufacturing process
AU - McNeal, Timothy A.
AU - Beers, Jeffrey A.
AU - Roth, John T.
PY - 2009
Y1 - 2009
N2 - In today's industry, the need for lightweight alloys with high strength properties is growing. More specifically, magnesium alloys are in high demand. Unfortunately, magnesium's limited formability hinders its broad range applicability. Previous research has discovered that the tensile formability of this alloy can be increased using electrical pulsing during the deformation process, referred to as Electrically-Assisted Manufacturing (EAM). Although this method increases a material's formability (i.e. lowers flow stress, increases elongation, and reduces springback), a detailed analysis is required to further evaluate the effects of electricity on the material's microstructure. The research herein will examine the microstructure of Magnesium AZ31B-O specimens that were deformed under uniaxial tension while electrically pulsed with various pulsing parameters (i.e. different current density/pulse duration combinations). This microstructural analysis will focus on how EAM affected grain size, grain orientation, and twinning. The microstructure of the following different specimen types will be compared: deformed EAM specimens, deformed non-pulsed baseline specimens, and undeformed non-pulsed "as received" specimens.
AB - In today's industry, the need for lightweight alloys with high strength properties is growing. More specifically, magnesium alloys are in high demand. Unfortunately, magnesium's limited formability hinders its broad range applicability. Previous research has discovered that the tensile formability of this alloy can be increased using electrical pulsing during the deformation process, referred to as Electrically-Assisted Manufacturing (EAM). Although this method increases a material's formability (i.e. lowers flow stress, increases elongation, and reduces springback), a detailed analysis is required to further evaluate the effects of electricity on the material's microstructure. The research herein will examine the microstructure of Magnesium AZ31B-O specimens that were deformed under uniaxial tension while electrically pulsed with various pulsing parameters (i.e. different current density/pulse duration combinations). This microstructural analysis will focus on how EAM affected grain size, grain orientation, and twinning. The microstructure of the following different specimen types will be compared: deformed EAM specimens, deformed non-pulsed baseline specimens, and undeformed non-pulsed "as received" specimens.
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U2 - 10.1115/MSEC2009-84377
DO - 10.1115/MSEC2009-84377
M3 - Conference contribution
AN - SCOPUS:77953192170
SN - 9780791843611
T3 - Proceedings of the ASME International Manufacturing Science and Engineering Conference 2009, MSEC2009
SP - 641
EP - 650
BT - Proceedings of the ASME International Manufacturing Science and Engineering Conference 2009, MSEC2009
T2 - ASME International Manufacturing Science and Engineering Conference 2009, MSEC2009
Y2 - 4 October 2009 through 7 October 2009
ER -