Anisotropy of Mechanical Properties of an AZ31 Alloy Prepared by SPD Method

¹Charles University, Faculty of Mathematics and Physics, Ke Karlovu 3, CZ-121 16 Praha 2, Czech Republic

²Comtes FHT, Průmyslová 995, CZ-334 41 Dobřany, Czech Republic

Adv. Mater. Lett., 2019, 10 (12), pp 887-892

DOI: 10.5185/amlett.2019.0037

Publication Date (Web): Nov 01, 2019

Copyright © IAAM-VBRI Press

E-mail: zdenek.drozd@mff.cuni.cz

Abstract

Cast magnesium alloy AZ31 was processed by equal channel angular pressing (ECAP); 1-8 passes were applied using different processing routes A, B_C and C. Samples were cut from the extruded billet in the extrusion, transversal and normal directions. Micro-tensile tests were performed at room temperature with an initial strain rate of 1´10^-3 s^-1. The microstructure analysis showed a significant grain reducing. Texture of extruded samples was studied using EBSD technique. The true stress-true strain curves and characteristic stresses exhibit a pronounced anisotropy for all processing routes as a consequence of the developed different texture. © VBRI Press.

Keywords

Magnesium alloy AZ31, ECAP, tensile tests, anisotropy.