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ISSN: 2213-9567

Comparison of the insertion-extraction of Ca and Mg ions in amorphous CaMn2O4 post-spinel-based cathodes in aqueous media

•Calcium manganese oxide (CMO) can be used as a cathode for Mg and Ca ion batteries.•Mg ions insert more efficiently in CMO than Ca ions.•Better CMO capacity and cyclability for Mg than for Ca electrolytes.•Cation...

Research progress and application prospects of die cast magnesium alloys

•Applications for die cast Mg alloys have been reducing in recent years.•There are potential new applications in electric vehicles and giga-casting.•Alloy design principles including eutectics with...

Tailoring bimodal grain structure to achieve simultaneous improvement of strength and ductility in magnesium alloys at cryogenic temperatures

•Bimodal grain structure enables a superior strength-ductility synergy in Mg-3.6Y alloys at CT, with ∼50 % DRXed region fraction increasing the TYS by 1.6 times and reducing fracture elongation by only...

Integrated process-structure–property–performance optimization of cold-sprayed zinc coatings on AZ91 magnesium alloy

•An optimum range of cold spray parameters was identified for cold spray depositing Zn on AZ91.•This optimum range resulted in ∼200 µm/pass deposition, <0.5 % porosity, greater than 30 MPa adhesion...

Insights of stearic acid/polypyrrole superhydrophobic coating on controlling corrosion, antibacterial and cytocompatibility of biodegradable Mg alloy and its implication on fracture fixation

•Stearic acid treated polypyrrole coating develops a superhydrophobic surface, which enhanced corrosion protection efficacy by more than 85 %.•Improved corrosion properties of the coated specimen leads...

Investigation of the compressive deformation mechanisms in Mg-Gd-Y strengthened bimetallic composite rods

•The AZ31/Mg-Gd-Y composite rod has a good metallurgical bond.•The high dislocation density in the interface region favors non-basal slip activation.•The nucleation and growth of {10-12} twins in A/G-AZ31...

Lightweight design and manufacture of die casting magnesium alloy seat frame

•A novel structure was designed that integrates the headrest with the backrest, combining lightness and safety.•Development of a new forward production logic for Mg seat castings.•Actual production...

From LLM to Agent: A large-language-model-driven machine learning framework for catalyst design of MgH2 dehydrogenation

•AI framework automates MgH2 catalyst data extraction from literature.•LLM to Agent approach accelerates MgH2 catalyst discovery and design.•Machine learning predicts MgH2 dehydrogenation with high...

Extruded Mg97.37Zn1.88Y0.75 alloy with both high thermal conductivity and mechanical strength

•The Mg97.37Zn1.88Y0.75 (at%) alloy simultaneously possessing high thermal conductivity (131 Wm-1K-1), high tensile yield strength (361 MPa), and notable elongation (9.7 %) was developed.•Regardless...

Tailoring microstructure and strength-ductility synergy in AZ91D/ZrO₂ magnesium matrix composite by dual eccentric-pin tool friction stir processing

•Dual eccentric-pin tool (DEPT) FSP was employed to incorporate ZrO2 particles AZ91D Mg alloy.•Enhanced twin formation and dislocation distribution.•Transition from basal to prismatic texture.•Strength-ductility...

Recent progress and perspectives in additive manufacturing of magnesium alloys and composites: A review of process-microstructure-property correlations

•The recent progress in additive manufacturing of magnesium alloys and magnesium matrix composites (MMCs) is systematically reviewed.•Microstructure evolution and defect formation mechanisms in various...

Dynamic recrystallization and strengthening mechanisms in a magnesium alloy processed by severe plastic deformation

•At the early stages of deformation, LAGBs and HAGBs developed through DRV and CDRX, respectively. At higher strains, the density of HAGBs increased through DDRX.•CDRX grains of “GB-type” in the vicinity...

Self-healing coatings on Mg-Li alloy using pH-responsive sepiolite microcontainer loaded with corrosion inhibitors

•A novel corrosion protection strategy for Mg-Li alloy is proposed.•pH-responsive functionalized sepiolite microcontainers are prepared.•Cerium ions and barbituric acid are encapsulated via ion exchange...

Decoding complex compositions in topologically close-packed nanoplates of magnesium alloys: A high-throughput route to stable precipitates

•The metastable β2′ nanoplates in Mg-Zn alloys adopt the Mg(Mg, Zn)2 composition instead of pure MgZn2.•The metastable Mg2Nd nanoplates in Mg-Nd-Ca alloys adopt the Mg2(Ca, Nd, Mg) composition rather...

Enhancing irradiation tolerance of Mg-Mn based alloys via tailoring Mn nanoprecipitates

•The nano Mn particles (1–4 nm) are precipitated periodically along the basal plane during Xe irradiation.•The irradiation-induced Mn nanoprecipitates could effectively suppress the nucleation and growth...

New insights into combined thermal and vibration softening of magnesium alloy in rotational vibration assisted incremental sheet forming

•Modelling thermal and vibration effects in complex deformation of RV-ISF.•Decoupling and understanding individual contributions of different softening effects.•Investigating microstructure evolution...

In-situ TiH/V8C7 from bimetallic TiVC MXene for enhanced hydrogen storage in the 2LiBH4-MgH2

•The LMBH + 6 wt% TiVC releases 9.3 wt% hydrogen in 35 min and hydrogenation completes in 30 min.•Hydrogen is more easily diffused through the TiH/LiH/V8C7/MgB2 multi-phase interface.•The capacity retention...

The mechanism of pre-twinning on enhancing strength of AZ31 magnesium alloy

•New free compression and width-constrained rolling (FCWR) of AZ31 sheet is proposed.•FCWR of AZ31 sheet can eliminate strong basal texture and considerably refine grains.•Multiple slip systems are...

Degradation and biocompatibility of Mg-Dy-Zn alloys containing the LPSO and γʹ phases under physiological conditions

•Mg-Dy-Zn alloys with varying Dy content were prepared and investigated with respect to microstructure, degradation properties and biocompatibility.•Larger amounts of intermetallics display the lower...

Insight into the evolution of lamellar and block LPSO phase of Mg-Gd-Y-Zn-Zr alloy with laser welding after post-weld solution and aging treatment

•The microstructure transformation throughout entire laser welding, post-weld solution and aging treatment of Mg-RE-Zn alloy consisting of LPSO phases were systematically illustrated.•Complete dissolution...

Insight into the hot deformation behavior and recrystallization mechanism of Mg-Y-RE alloys based on machine learning

•Systematic analysis of microstructure evolution during hot deformation of Mg-Y-Nd-(Sm)-Zr alloys.•The flow stress of Sm-containing alloys decreases dramatically to a steady state after reaching a peak...

The copper-magnesium system: calorimetric studies and phase diagram calculations

•Preparation and identification of the Cu-Mg intermetallic phases.•Calorimetric measurements of the Cu-Mg system.•Thermodynamic properties of the Cu-Mg system.•Formation enthalpies of Cu-Mg alloys from...

Evaluation of MgO solubility in MgF2 – LiF and MgF2 – LiF – MF2 (M = Ca, Ba) at 1053–1203 K

•MgO solubility in MgF2 – LiF-based molten salts was systematically measured.•Electrolytic O²⁻ removal lowered O in salt to below 88 ppm for precise measurement.•At 1053 K, MgO solubility in (MgF2 –...

Coordinated control of drug release and corrosion resistance for 3D-printed porous Mg alloy in bone implant applications

•Two drug loaded coating systems are introduced inside 3D porous on AZ91 Mg.•In situ incorporation of LDH capsules effectively reduced the porosity of PEO layer.•The post-deposited LDH on PEO layer...

Mechanisms and strategies for corrosion control of additively manufactured magnesium alloys

•Corrosion mechanisms of AM Mg parts are reviewed.•Correlation between microstructure and corrosion behavior is explored.•Future directions in the research of the corrosion processes of AM Mg parts...

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