Effect of Temperature on Grain Refinement of Mg-3Al-1Zn Alloy Processed by Equal Channel Angular Pressing
P. Molnár, A. Jäger and P. Lejček
Institute of Physics of the ASCR, Na Slovance 2, CZ-182 21 Prague 8, Czech Republic
Full Text PDF
In this work the effect of temperature on grain refinement of Mg-3Al-1Zn alloy (AZ31B) processed by equal channel angular pressing using route A is described. The deformation sequences consisted of equal channel angular pressing passes at 200°C followed by passes at 150°C. Nonhomogeneous grain size distribution promotes shear band formation at 150°C. Shear bands with microcracks inside were analyzed by electron backscatter diffraction technique.
DOI: 10.12693/APhysPolA.122.461
PACS numbers: 62.20.F-, 81.70.Bt, 81.20.Hy, 87.64.Ee