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 |
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| 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 |