Microstructure and mechanical properties of rolled Mg–Gd–Zn–Zr–Ag–Al–Li alloys
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Xianhua Chen
,
Teng Tu
Abstract
The microstructural evolution and mechanical properties of hot rolled Mg-12Gd-1Zn-0.5Zr-0.5Ag (in wt.%) (MGZKA) alloys, with and without Al and Li additions, were investigated in this study. The Al and Li-containing alloys achieved excellent overall mechanical properties, especially MGZKA-6Al5Li alloy with a high elastic modulus of 52.2 GPa and a good plasticity of 15%. Compared with Al and Li-free MGZKA alloy, the fragmented Al2Gd and nanoscale Al2Li3 phases with high modulus are observed in Al and Li-containing MGZKA-4Al3Li and MGZKA-6Al5Li alloys, which contribute to the overall elastic modulus of the alloys. The dynamic recrystallization regions of Al and Li-containing alloys increased while c/a ratio reduced, leading to the weakened texture. The activation of non-basal slip in Al and Li-containing alloys is closely related to the fine grains and weakened texture, which jointly promote the plasticity of Al and Li-containing alloys.
© 2020 by Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- CONTENTS
- Original Contributions
- Effects of hydroxyapatite content on mechanical properties and in-vitro corrosion behavior of ZK60/HA composites
- The effect of plastic deformation on mechanical properties of aluminium matrix composites reinforced with 2D crystals
- Production and characterization of Al6061/zirconium carbide surface composites
- Microstructure and mechanical properties of rolled Mg–Gd–Zn–Zr–Ag–Al–Li alloys
- Anodizing and its effects on mechanical properties and corrosion resistance of laser additive manufactured Ti-6Al-4V alloy
- Comparative study of corrosion resistance between four non-commercial high manganese steel models and 9% nickel steel in aqueous solution of H2SO4
- Optimization of the grain boundary character distribution of pure copper by low-strain thermomechanical processing
- Two-step annealing treatment for grain refinement of cold-worked AISI 316L stainless steel
- Crystal structure, microstructure, and magnetic properties of the Fe2CrSi nanostructured Heusler alloy elaborated by the mechanical alloying method
- Experimental study of parameters influencing the damping of particulate, fibre-reinforced, hybrid, and sandwich composites
- Displacement cascade evolution in tungsten with pre-existing helium and hydrogen clusters: a molecular dynamics study
- Notifications
- DGM
- Conferences
- Imprint
Artikel in diesem Heft
- CONTENTS
- Original Contributions
- Effects of hydroxyapatite content on mechanical properties and in-vitro corrosion behavior of ZK60/HA composites
- The effect of plastic deformation on mechanical properties of aluminium matrix composites reinforced with 2D crystals
- Production and characterization of Al6061/zirconium carbide surface composites
- Microstructure and mechanical properties of rolled Mg–Gd–Zn–Zr–Ag–Al–Li alloys
- Anodizing and its effects on mechanical properties and corrosion resistance of laser additive manufactured Ti-6Al-4V alloy
- Comparative study of corrosion resistance between four non-commercial high manganese steel models and 9% nickel steel in aqueous solution of H2SO4
- Optimization of the grain boundary character distribution of pure copper by low-strain thermomechanical processing
- Two-step annealing treatment for grain refinement of cold-worked AISI 316L stainless steel
- Crystal structure, microstructure, and magnetic properties of the Fe2CrSi nanostructured Heusler alloy elaborated by the mechanical alloying method
- Experimental study of parameters influencing the damping of particulate, fibre-reinforced, hybrid, and sandwich composites
- Displacement cascade evolution in tungsten with pre-existing helium and hydrogen clusters: a molecular dynamics study
- Notifications
- DGM
- Conferences
- Imprint
