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ISSN: 2213-9567

Enhanced strength-ductility synergy in a wire and arc additively manufactured Mg alloy via tuning interlayer dwell time

Strength-ductility trade-off is a common issue in Mg alloys. This work proposed that a synergistic enhancement of strength and ductility could be achieved through tuning interlayer dwell time (IDT)...

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Texture-dependent bending behaviors of extruded AZ31 magnesium alloy plates

The relatively insufficient knowledge of the deformation behavior has limited the wide application of the lightest structure material-Mg alloys. Among others, bending behavior is of great importance...

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Synergy of inside doped metals‒Outside coated graphene to enhance hydrogen storage in magnesium-based alloys

Grain growth of magnesium (Mg) and its hydride is one of the main reasons for kinetic and capacity degradation during the hydrogen absorption and desorption cycles. To solve this problem, herein we...

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First-principles study on the interfacial bonding strength and segregation at Mg/MgZn2 matrix interface

To understand the interface characteristics between the precipitate β2′ and the Mg matrix, and thus guide the development of new Mg-Zn alloys, we investigated the atomic interface structure, work of...

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An ionic liquid-assisted strategy for enhanced anticorrosion of low-energy PEO coatings on magnesium–lithium alloy

•Low-energy PEO coatings were grown on Mg–Li alloy in presence of ionic liquid.•The corrosion resistance of low-energy PEO coating with ionic liquid was enhanced.•The role of ionic liquid was demonstrated...

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Mechanisms and anisotropy of serrated flow in Mg–Gd single crystals

Serrated flow has been primarily studied at the macron scale, yet the length and times scales at which the solute–meditated dislocation pinning and de-pinning processes that underlie the phenomenon...

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Interface and energy band manipulation of Bi2O3-Bi2S3 electrode enabling advanced magnesium-ion storage

Rechargeable magnesium-ion (Mg-ion) batteries have attracted wide attention for energy storage. However, magnesium anode is still limited by the irreversible Mg plating/stripping procedure. Herein,...

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Evolution of microstructure and texture of AZ80 magnesium alloy under hot torsion with constant decreasing temperature rate

Hot torsion tests for AZ80 magnesium alloy were carried out in the temperature range of 380 °C-260 °C, with a constant decreasing temperature rate of 10 °C/s in order to weaken the basal texture and...

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Individual effect of Y and Nd on the microstructure formation of Mg-Y-Nd alloys processed by severe plastic deformation and their effect on the subsequent mechanical and corrosion properties

This work investigated the effect of sole yttrium and neodymium alloying on the microstructure formation during severe plastic deformation by equal channel angular pressing (ECAP) and an impact on the...

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Galvanic corrosion of AZ31B joined to dual-phase steel with and without Zn layer by ultrasonic and friction stir welding

Galvanic corrosion of AZ31B joined with bare or Zn-coated DP590 steel by ultrasonic spot welding or linear friction stir welding was quantitatively studied by pre-defining anode and cathode in the lap...

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Recent advances in the in-plane shear testing of Mg alloy sheets

•Simple shear deformation and subsequent annealing exhibit larger fracture elongations regardless of direction.•A prismatic slip along with tension twinning and basal slip make considerable contributions...

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Additive manufacturing of magnesium matrix composites: Comprehensive review of recent progress and research perspectives

•Research progress on AM of MMCs is systematically reviewed.•Unique characteristics of AM in fabricating MMCs are stated.•Formation mechanism and control methods of the defects during AM are systematically...

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A self-healing and bioactive coating based on duplex plasma electrolytic oxidation/polydopamine on AZ91 alloy for bone implants

Magnesium (Mg) alloys are well-known in biomedical materials owing to their elastic module near to bone, biocompatibility and biodegradation properties. Nevertheless, poor corrosion resistance hinders...

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High-ductility fine-grained Mg-1.92Zn-0.34Y alloy fabricated by semisolid and then hot extrusion

The combination of semisolid and hot extrusion processing was applied to refine the icosahedral quasicrystalline phase (I-phase) in an extruded Mg-1.92Zn-0.34Y(wt.%) alloy for the first time. The semisolid...

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Mg-3Al-1Zn alloy deformed along different strain paths: Role of latent hardening

The mechanical properties of magnesium alloy AZ31 were investigated experimentally with visco-plastic self-consistent modeling. Tension, compression and plane strain compression (PSC) tests were performed...

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Acceleration of aging behavior and improvement of mechanical properties of extruded AZ80 alloy through (10–12) twinning

The effects of pre-existing {10–12} extension twins on the precipitation behavior of an extruded AZ80 material during aging and on its mechanical properties after peak aging are investigated. The material...

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Effect of TiO2 nanoparticles on the photocatalytic properties of PEO coatings on Mg alloy

•Coatings with TiO2 nanoparticles were successfully formed on Mg.•The presence of titanium dioxide in the coating imparts photocatalytic properties to the surface.•Formed coatings decrease the corrosion...

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Effect of addition of minor amounts of Sb and Gd on hot tearing susceptibility of Mg-5Al-3Ca alloy

The effects of addition of minor amount of (0.5 wt.%) antimony (Sb) or gadolinium (Gd) and combined addition of Sb and Gd (0.5 wt.%, respectively) on the hot tearing susceptibility (HTS) of Mg-5Al-3Ca...

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The effect of temperature on load partitioning evolution in magnesium metal matrix composite reinforced with Ti particles using in-situ synchrotron radiation diffraction experiments

The load partitioning between the magnesium and titanium phases in an extruded Mg-15%Ti (vol.%) composite from room temperature up to 300 °C using synchrotron radiation diffraction during in-situ compression...

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Role of extrusion rate on the microstructure and tensile properties evolution of ultrahigh-strength low-alloy Mg-1.0Al-1.0Ca-0.4Mn (wt.%) alloy

Mg-1.0Al-1.0Ca-0.4Mn (AXM1104, wt.%) low alloy was extruded at 200 °C with an extrusion ratio of 25 and different ram speeds from 1.0 to 7.0 mm/s. The influence of extrusion rate on microstructure and...

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Three-dimensional crystal plasticity and HR-EBSD analysis of the local stress-strain fields induced during twin propagation and thickening in magnesium alloys

Present work focuses on analysis of the stress and strain fields inside and around the individual {10–12} twin in magnesium alloy. The 3D crystal plasticity model represents twin as an ellipsoidal inclusion...

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Texture property and weakening mechanism of Mg-3Al-1Zn alloy by interactive alternating forward extrusion

The interactive alternating forward extrusion (AFE) method can realize the change of texture type and the weakening of texture strength. Taking AZ31 magnesium alloy as an example, the texture evolution...

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Fabrication of chitosan/silica hybrid coating on AZ31 Mg alloy for orthopaedic applications

Biocompatible conversion of chitosan and chitosan/silica hybrid coating were prepared to enhance the biocompatibility and corrosion resistance of biodegradable AZ31 Mg alloy. The coatings were optimized...

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Reducing damage extent of epoxy coating on magnesium substrate by Zr-enhanced PEO coating as an effective pretreatment

This research was undertaken to study the effect of Zr-enhanced plasma electrolytic oxidation (PEO) as a pretreatment on the corrosion performance of epoxy coating applied on Magnesium in 3.5 wt.% NaCl...

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Use of various MgO resources for high-purity Mg metal production through molten salt electrolysis and vacuum distillation

A green and effective electrolytic process was developed to produce high-purity Mg metal using primary and secondary resources containing MgO as a feedstock. The electrolysis of various MgO resources...

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