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ISSN: 2213-9567

Architecting optimized heterostructure for exceptional strength-ductility synergy in Mg-Gd-Y-Zn-Mn alloy

•Extruded bimodal Mg-Gd-Y-Zn-Mn alloy achieves 372 MPa ultimate tensile strength and 17.3% elongation.•Narrow coarse grains enable uniform strain partitioning and continuous GNDs gradient near fine...

Development of a micro-alloyed bio-Mg alloy with high strength-ductility, promising corrosion behavior via rotary swaging

•Yield strength of Mg-0.5Zn-0.2Ge-0.05Ca alloy was increased by 61% via rotary swaging.•Strength improvement is mainly due to grain refinement (49.9 MPa) and dislocation accumulation (36.0 MPa).•High...

Revealing the dynamic evolution of interfacial water during Mg anodic dissolution

•Constructed a machine-learning interatomic potential for Mg–water interfaces via fine-tuning of a pre-trained model, enabling anodic dissolution simulations.•Derived an accurate anodic polarization...

Magnesium as a cross-domain regulator in aqueous zinc-ion batteries

•Mg2+ pre-intercalation pillars V/Mn oxide hosts, enhancing interlayer spacing to 13.4 Å.•Mg-rich interphases suppress zinc dendrites and Zn4SO4(OH)6·xH2O passivation on zinc.•MgSO4/ZnSO4 hybrid electrolytes...

Inhibition mechanism of cold sprayed Al-based composite repairs on micro-galvanic corrosion in a cast magnesium alloy substrate

•The micro-galvanic corrosion inhibition mechanisms of repaired ZM6 were discovered.•When CS repair area ratios are lower than 20%, the corrosion of ZM6 is suppressed.•Adding Al2O3 particles enhanced...

Fabrication of HEA particle-reinforced AZ91 magnesium matrix composites via WAAM-FSP hybrid process: Microstructural regulation and performance optimization

•A novel WAAM-FSP strategy enables homogeneous incorporation of HEA particles into AZ91 magnesium matrix composites.•Optimal processing parameters achieve defect-free morphology and uniform particle...

Ultra-high ductility in AZ31B magnesium alloy by preparing unique heterostructure: an experiment and phase field crystal simulation study

•An ultra-high room-temperature ductility heterostructure magnesium alloy with ductility of up to 36.8%, has been prepared.•The simultaneous initiation of 〈a〉 and 〈c+a〉 slip during microstructure evolution...

The key mechanism of twin-mediated microcracks in enhancing Mg anodes’ discharge behavior

•The effect of annealing temperature on the discharge performance of a Mg anode was studied.•The relationship between twins and the discharge morphology of a magnesium anode was revealed.•The fine grain...

Synergistic effects of silicon alloying and plastic deformation on thermal expansion behavior and mechanical performance of dual-phase Mg-Li alloys

●Si alloying and plastic deformation synergistically optimize the thermal expansion and mechanical properties of Mg–Li alloys.●Residual stress effects were investigated, while first-principles calculations...

Deformation twinning in magnesium: the role of phase transformations

Image, graphical abstract...

A new methodology for habit plane and orientation relationship prediction in precipitation strengthening of magnesium alloys

•A general method predicts orientation relationships and habit planes in precipitation-strengthened Mg alloys.•Three possible orientation relationships and habit planes are theoretically predicted for...

Al-driven magnesium alloy functionality via manifold structuring and disorder

•First comprehensive atomistic study of alloying & porosity in Mg-alloy performance.•Molecular Dynamics investigation of tensile response in Mg-Al-Zn alloys.•Effects of 0–18% Al+Zn and 0–3% porosity...

Novel Mg-Y-Ni dissoluble alloys with low cost, high strength, and rapid dissolution rate developed via optimizing thermal processing routes

•Proposes a “materials streamlining” strategy is proposed by utilizing a low-RE Mg-Y-Ni alloy and achieving performance through advanced thermomechanical processing instead of costly high-RE alloying.•Provides...

Integrating multimodal dot product fusion with conditional generative adversarial network to build a C-P-S-P chain in Mg alloys

•A multimodal CNN with dot product fusion predicts UTS of Mg alloys (R2 = 0.928).•MCCGAN generates EBSD microstructures conditioned on composition and process.•Integration of multimodal CNN and MCCGAN...

Deformation mechanisms and mechanical behaviors of magnesium alloys in light of the dislocation core structures dominated by composition-dependent 3D misfit potentials

Deformation mechanisms and mechanical behaviors of magnesium (Mg) alloys are essentially governed by the characteristics of dislocation core structures, which are dominated by the composition-dependent...

Synergistic enhancement of strength and ductility in wire arc additive manufactured Mg-Gd-Y-Zr alloy via Ag addition

To overcome the strength-ductility trade-off and poor formability of high-RE magnesium alloys, Mg-13Gd-3Y-XAg-Zr (x = 0, 1, and 2 wt.%) thin walls were fabricated via wire arc additive manufacturing...

Evaluation of corrosion performance of coated Mg component in commercial coolant

•Investigate corrosion performance at coupon and component levels for propulsion applications.•MAO coating significantly improves the corrosion resistance of magnesium.•Reveal consistent trends across...

Low temperature thermolysis and hydrolysis of MgH2 generated from a titanium-mediated hydrogenation of Mg2Si

•Mg2Si can be mostly converted to MgH2 (∼76 %) via hydrogen-assisted high-energy ball milling of Mg2Si-Ti.•The Ti-induced destabilization of Mg2Si promotes its transformation into MgH2.•The obtained...

Realizing enhanced superplasticity in an AZ91 Mg alloy featuring layered heterogeneous microstructure and texture

•Friction stir processing (FSP) generated a heterogeneous microstructure with layered variations in texture and grain size.•Superplastic elongation of 977% was observed for samples deformed at high...

Advanced processing and heat treatment of magnesium alloys: a quest for the critical breakthrough to large-scale applications

•Progress in processing of magnesium alloys including casting, twin roll casting, injection molding, rolling, extrusion, forging, and additive manufacturing is briefly specified, emphasizing a quest...

Effect of high-temperature aging treatment on strength enhancement of the as-cast Mg-8Li-6Zn-1Y (in wt.%) alloy

•Most of MgLiZn particles are dissolved during high-temperature aging.•Nano-sized I-phase particles are precipitated in α-Mg phase.•Aging-hardening is due to dissolved MgLiZn and precipitated I-pha...

Deep learning-driven microstructure characterization and Vickers-hardness prediction of Mg-Gd alloys

•Multitask pipeline quantifies microstructures in metallography and TEM images.•Deep-learning accurately predicts room-temperature Vickers hardness of Mg-Gd alloys.•Deep-learning microstructure-property...

Effect of Ca content in Mg melt on dealloying kinetics and microstructural evolution of Mg–Ti composites fabricated via liquid metal dealloying

•Ca content (1–10 wt.%) in the Mg melt accelerates Ti–Cu precursor dealloying.•Dealloying completion time shortens from 40 min (1Ca) to 20 min (10Ca).•Higher Ca leads to the formation of finer, more...

Through the extrusion temperature control AZ31B/6063 composite tubes microstructure to achieve strength-ductility synchronous enhancement

•AZ31B/6063 composite tubes were successfully fabricated by shear extrusion within a broad temperature window of 280–410 °C.•The as-prepared tubes exhibit stable high performance between 280 and 380...

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