Structure and mechanical properties of the Mg-Y-Gd-Zr alloy after high pressure torsion

Structure and mechanical properties of the Mg-Y-Gd-Zr alloy after high pressure torsion

The age-hardenable Mg-4.7%Y-4.6%Gd-0.3%Zr (wt%) alloy has been studied after high pressure torsion (HPT) at room temperature, 200°C and 300°C. The formation of partially nanocrystalline structure upon HPT results in substantial strengthening relative to the undeformed state of the alloy. The researc...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2016-06, Vol.667, p.217-223
Hauptverfasser: Dobatkin, S.V., Rokhlin, L.L., Lukyanova, E.A., Murashkin, M. Yu, Dobatkina, T.V., Tabachkova, N. Yu
Format: Artikel
Sprache:eng
Schlagworte:
Age hardening
Aging (metallurgy)
Aging treatment
Grain refinement
High pressure torsion
Magnesium alloys
Magnesium base alloys
Mechanical properties
Microstructure
Nanocrystals
Rare-earth elements
Strengthening
Torsion
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Zusammenfassung:The age-hardenable Mg-4.7%Y-4.6%Gd-0.3%Zr (wt%) alloy has been studied after high pressure torsion (HPT) at room temperature, 200°C and 300°C. The formation of partially nanocrystalline structure upon HPT results in substantial strengthening relative to the undeformed state of the alloy. The research showed that the strength of the HPT processed alloy could be further improved by aging.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2016.05.003