TY - JOUR
T1 - Enhancement of ductility in Mg-3Al-1Zn alloy with tilted basal texture by electropulsing
AU - Guan, Lei
AU - Tang, Guoyi
AU - Chu, Paul K.
AU - Jiang, Yanbin
PY - 2009/12
Y1 - 2009/12
N2 - The microstructure and texture evolution in a cold-rolled AZ31 magnesium alloy during electropulsing treatment (EPT) are investigated and correlated with the mechanical properties. The microstructure is effectively refined, and a tilted basal texture develops gradually during EPT. The yield stress in the treated samples is lower than that in the cold-rolled sample, indicating that texture softening is dominant over strengthening because of grain refinement. The phenomenon is primarily the result of the tilted basal texture. EPT improves the tensile ductility of the EPT samples significantly, albeit slightly compromising the tensile strength. The mechanism of the microstructure evolution during electropulsing is discussed from the viewpoint of grain-boundary motion. Moreover, the ductility enhancement is discussed in terms of the deformation mechanism and texture of the Mg alloy. © 2009 Materials Research Society.
AB - The microstructure and texture evolution in a cold-rolled AZ31 magnesium alloy during electropulsing treatment (EPT) are investigated and correlated with the mechanical properties. The microstructure is effectively refined, and a tilted basal texture develops gradually during EPT. The yield stress in the treated samples is lower than that in the cold-rolled sample, indicating that texture softening is dominant over strengthening because of grain refinement. The phenomenon is primarily the result of the tilted basal texture. EPT improves the tensile ductility of the EPT samples significantly, albeit slightly compromising the tensile strength. The mechanism of the microstructure evolution during electropulsing is discussed from the viewpoint of grain-boundary motion. Moreover, the ductility enhancement is discussed in terms of the deformation mechanism and texture of the Mg alloy. © 2009 Materials Research Society.
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U2 - 10.1557/jmr.2009.0436
DO - 10.1557/jmr.2009.0436
M3 - RGC 21 - Publication in refereed journal
SN - 0884-2914
VL - 24
SP - 3674
EP - 3679
JO - Journal of Materials Research
JF - Journal of Materials Research
IS - 12
ER -