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ISSN: 2213-9567

Direct conversion of CO2 to graphene via vapor–liquid reaction for magnesium matrix composites with structural and functional properties

Converting CO2 to valuable materials is attractive in environmental protection and resource utilization. In this study, a vapor–liquid interface reaction system for mass production of high-quality graphene...

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Evaluation of elastic-viscoplastic self-consistent models for a rolled AZ31B magnesium alloy under monotonic loading along five different material orientations and free-end torsion

Comprehensive experiments including monotonic tension and monotonic compression of specimens taken from a rolled AZ31B Mg thick plate along five different material orientations with respect to the rolled...

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A novel dual-functional layer exhibiting exceptional protection and photocatalytic activity by organic functionalization of plasma electrolyzed layer

The formation of inorganic-organic hybrids (IOH) on the metallic substrates would play a decisive role in improving their structural and functional features. In this work, the growth of organic coating...

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Effects of proteins on magnesium degradation - static vs. dynamic conditions

•Proteins promote the formation of Ca/P-rich products on mg surface in static immersion.•Protein adsorption is largely reduced during mg degradation under flow condition.•Interaction between proteins...

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Kinking-facilitated nano-crystallization in a shock compressed Mg-1Zn alloy

The local deformation behavior and dynamic recrystallization of a shock compressed Mg-1Zn alloy was investigated through EBSD and TEM. Since dislocation slipping and twinning were locally suppressed...

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Revealing the grain size dependent hot workability and deformation mechanisms in a Mg-Zn-Y alloy

Despite the industrial significance of grain size for enhancing mechanical properties and formability, the in-depth deformation mechanisms at elevated temperature are still unclear. To investigate the...

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On the strengthening and slip activity of Mg-3Al-1Zn alloy with pre-induced {101¯2} twins

{101¯2} twins were introduced into the magnesium (Mg) plate AZ31 via pre-rolling along its transverse direction. The plates, both with and without the pre-induced {101¯2} twins, were subjected to uniaxial...

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Effects of surface roughness on bending properties of rolled AZ31 alloy

This study investigated the effects of mechanical-polishing-induced surface roughness and the direction of polishing lines on the bending properties of a rolled AZ31 alloy. To this end, three-point...

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Micro-alloyed Mg-Ca: Corrosion susceptibility to heating history and a plain problem-solving approach

•Corrosion rate of Mg-0.15ca alloy increases remarkably after thermal processing.•Significant precipitation of Fe impurity is found upon Mg-0.15Ca due to annealing.•In alloying is able to hinder the...

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Novel PA encapsulated PCL hybrid coating for corrosion inhibition of biodegradable Mg alloys: A triple triggered self-healing response for synergistic multiple protection

•Novel PA loaded PCL microcapsules with unique honeycomb core morphology are developed.•The microcapsules engineered in micro-porous PCLNIPS layer to obtain PA-PCLcaps coating.•The PA-PCLcaps coating...

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ZIF-8-based micro-arc oxidation composite coatings enhanced the corrosion resistance and superhydrophobicity of a Mg alloy

Mg alloys are considered the most promising engineering materials because of their unique properties. However, the uncontrolled corrosion rate of these alloys limits their applications. Therefore, in...

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Incorporation of LDH nanocontainers into plasma electrolytic oxidation coatings on Mg alloy

In-situ incorporation of layered double hydroxides (LDH) nanocontainers into plasma electrolytic oxidation (PEO) coatings on AZ91 Mg alloy has been achieved in the present study. Fumarate was selected...

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Achieving high strength-ductility synergy in a Mg97Y1Zn1Ho1 alloy via a nano-spaced long-period stacking-ordered phase

Achieving high strength in Mg alloys is usually accompanied by ductility loss. Here, a novel Mg97Y1Zn1Ho1 at.% alloy with a yield strength of 403 MPa and an elongation of 10% is developed. The strength-ductility...

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Investigation on the temperature-dependent diffusion growth of intermetallic compounds in the Mg-Al-Zn system: Experiment and modeling

•Multi-element multi-phase diffusion couples designed by phase stability diagram.•In-situ observation of diffusion growth of ternary IMCs in Mg-Al-Zn system.•Composition- and temperature-dependent interdiffusivities...

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Deformation behaviour of magnesium bicrystals with symmetrical 90° <112¯0> tilt grain boundaries analysed by large area EBSD mapping

Grain boundaries play a significant role in the deformation of polycrystals. Their response to deformation is however not completely understood, particularly with respect to how they accommodate lattice...

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Atomistic simulation of the dislocation interactions with the Al2Ca Laves phase in Mg–Al–Ca alloy

The mechanical properties of Mg–Al–Ca alloys are significantly affected by their Laves phases, including the Al2Ca phase. Laves phases are generally considered to be brittle and have a detrimental effect...

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Shortening the manufacturing process of degradable magnesium alloy minitube for vascular stents by introducing cyclic extrusion compression

•It is innovative to introduce CEC during minitube manufacturing process.•The precision and performance of minitubes meet the requirements of use.•The effect of annealing on minitubes microstructure...

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Influence of Sr on microstructure evolution, mechanical and corrosion properties of extruded Mg-2Zn-0.5Ca alloy

•Microstructure of ingots was refined and became homogeneous due to Sr addition.•Grains were further refined and fiber texture formed during hot extrusion.•The UTS increased and elongation decreased...

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NaF assisted preparation and the improved corrosion resistance of high content ZnO doped plasma electrolytic oxidation coating on AZ31B alloy

•Fluoride ion salt can regulate the discharge behavior of the PEO on AZ31B alloy in the ZnO contented electrolyte by forming MgF2 .•The interval MgF2 decreases the breakdown voltage and discharge voltage...

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Fatigue crack propagation in fine-grained magnesium under low temperature tension-tension cyclic loading

Fine-grained magnesium was tested under stress-controlled tension-tension cyclic loading at -30 °C and the tested sample was observed using scanning electron microscope and electron backscatter diffraction...

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Study of HCP→FCC phase transformation mechanism under different hot compression rates of AZ31 magnesium alloy

At present, there are few studies on the phase transition during the thermocompression plastic deformation of magnesium alloy. In this study, the evolution model of thermal compression plastic of AZ31...

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New superhydrophobic composite coatings on Mg-Mn-Ce magnesium alloy

•A combined method was created for the formation of composite coatings on magnesium.•The low SFE and hierarchical structure determined superhydrophobic properties.•Superhydrophobic properties are preserved...

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Improving the ductility and toughness of nano-TiC/AZ61 composite by optimizing bimodal grain microstructure via extrusion speed

In this study, the nano-TiC/AZ61 composites with different heterogeneous bimodal grain (HBG) structures and uniform structure are obtained by regulating the extrusion speed. The effect of HBG structure...

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Rapid drop in ductility of the bimodal-structured Mg–15Gd binary alloy during early aging

A bimodal-structured Mg–15Gd binary alloy with 45% volume fraction of elongated grains and 55% of dynamically recrystallized (DRXed) grains is fabricated by the extrusion process. The precipitating...

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