Abstract
The crystallographic texture and its correlation with anisotropy of mechanical properties of hotpressed Mg-Y-Gd-Zr alloy distinguished among magnesium alloys owing to its high strength at near room and elevated temperatures are investigated. Studies of mechanical properties of the alloy have shown that, in the hot-pressed state, it has slight anisotropy of strength properties as compared to the hot-pressed magnesium alloys from most other systems. Moreover, in the hot-pressed state in the Mg-Y-Gd-Zr alloy, in contrast to magnesium alloys not containing rare earth metals (REMs) of the yttrium group, the compression yield stress was close to the tension yield stress. The texture of hot compressed Mg-Y-Gd-Zr alloy displayed weak basal and prismatic components and this, in particular, explains low anisotropy and slight asymmetry of the yield stress during tension and compression of the studied alloy. A weak texture found in Mg-Y-Gd-Zr alloy is explained by a special character of dynamic recrystallization in a magnesium solid solution containing fine particles of zirconium phase forming during hot pressing, during which a great number of randomly oriented recrystallized grains grow.
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Original Russian Text © V.N. Serebryany, L.L. Rokhlin, A.N. Monina, 2013, published in Perspektivnye Materialy, 2013, No. 7, pp. 12–20.
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Serebryany, V.N., Rokhlin, L.L. & Monina, A.N. Texture and anisotropy of mechanical properties of the magnesium alloy of Mg-Y-Gd-Zr system. Inorg. Mater. Appl. Res. 5, 116–123 (2014). https://doi.org/10.1134/S207511331402018X
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DOI: https://doi.org/10.1134/S207511331402018X