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Recent Journal of Magnesium and Alloys Articles

Recently published articles from Journal of Magnesium and Alloys.

Unexpected high-temperature brittleness of a Mg-Gd-Y-Ag alloy

•An unexpected high temperature brittleness of Mg-Gd-Y-Ag alloy deformed at 500 °C.•Softening of segregated compounds resulting in severe intergranular fractures during high temperature deformation.•A...

Computational design of Mg alloys with minimal galvanic corrosion

Formation of galvanic cells between constituent phases is largely responsible for corrosion in Mg-based alloys. We develop a methodology to calculate the electrochemical potentials of intermetallic...

Extrusion limit diagram of AZ91–0.9Ca–0.6Y–0.5MM alloy and effects of extrusion parameters on its microstructure and mechanical properties

Available online 28 July 2021
Dong Hee Lee | Ye Jin Kim | Sang-Hoon Kim | Byoung Gi Moon | Sung Hyuk Park

An AZ91–0.9Ca–0.6Y–0.5 MM (AZXWMM91100) alloy, which has higher corrosion resistance, ignition resistance, and extrudability than a commercial AZ91 alloy, has been developed recently. In this study,...

Effect of heat treatment on the mechanical and biocorrosion behaviour of two Mg-Zn-Ca alloys

Available online 28 July 2021
N. Pulido-González | P. Hidalgo-Manrique | S. García-Rodríguez | B. Torres | J. Rams

•After solidification, ZX11 has both Mg2Ca and Ca2Mg6Zn3, but ZX30 only has Ca2Mg6Zn3.•Solution treatment results in a different Ca2Mg6Zn3 dissolution degree in each alloy.•Age hardening response is...

Biodegradable Mg alloys for orthopedic implants – A review

Available online 27 July 2021
Violeta Tsakiris | Christu Tardei | Florentina Marilena Clicinschi

The last decade has seen a significant growth in the market for alloys used for implants, especially for those intended for orthopedic implants. Research into biodegradable magnesium-based alloys has...

Bioinspired fish-scale-like magnesium composites strengthened by contextures of continuous titanium fibers: Lessons from nature

Natural fish scales demonstrate outstanding mechanical efficiency owing to their elaborate architectures and thereby may serve as ideal prototypes for the architectural design of man-made materials....

Tribological behaviour of AZ31 magnesium alloy reinforced by bimodal size B4C after precipitation hardening

•AZ31 composites reinforced by bimodal size B4C particles with low porosity were prepared.•The microhardness of the composites was increased by enhancing the B4C content.•The addition of B4C particles...

Effect of heat treatment on mechanical properties and microstructure evolution of Mg-9.5Gd-4Y-2.2Zn-0.5Zr alloy

Regarding the as-cast Mg-9.5Gd-4Y-2.2Zn-0.5Zr alloy, the effect of heat treatment on its properties at room temperature (RT), as well as the mechanical properties and microstructure evolution of various...

Controlling the rate of degradation of Mg using magnesium fluoride and magnesium fluoride-magnesium phosphate duplex coatings

Available online 25 July 2021
Mohan Sathyaraj P | Ravichandran K | Sankara Narayanan TSN

The thin and porous Fluoride Conversion Coating FCC with many cracks could not offer a significant improvement in corrosion resistance for Mg. Magnesium phosphate coating improves the corrosion resistance...

Effects of pre-aging on microstructure evolution and deformation mechanisms of hot extruded Mg–6Zn–1Gd–1Er Mg alloys

The influence of pre-aging treatment on the microstructure, texture and mechanical properties of the Mg–6Zn–1Gd–1Er (wt.%) alloy was investigated. The microstructure analysis shows that the presence...

Initial micro-galvanic corrosion behavior between Mg2Ca and α-Mg via quasi-in situ SEM approach and first-principles calculation

The initial micro-galvanic corrosion behavior of Mg‒30wt%Ca alloy only containing Mg2Ca and α-Mg was studied by immersion testing in a 0.9% NaCl solution at 37ºC. The quasi-in situ SEM and TEM results...

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

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

Continuous observation of twinning and dynamic recrystallization in ZM21 magnesium alloy tubes during locally heated dieless drawing

Available online 24 July 2021
Peihua Du | Shusaku Furusawa | Tsuyoshi Furushima

Compared to cold drawing, dieless drawing has shown great potential for manufacturing biodegradable Mg alloy microtubes due to the large reduction in area acquired in a single pass. However, owing to...

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...

Strength-ductility balance of AZ31 magnesium alloy via accumulated extrusion bonding combined with two-stage artificial cooling

AZ31 Mg alloy with heterogeneous bimodal grain structure (smaller grain size of 5–20 µm and coarser grain size of 100–200 µm) was subjected to accumulated extrusion bonding (AEB) at 250 ℃ combined with...

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...

A novel MgF2/PDA/S-HA coating on the bio-degradable ZE21B alloy for better multi-functions on cardiovascular application

Recently, functional molecules such as Polydopamine (PDA), Hyaluronic Acid (HA) and heparin have been widely studied in the field of surface modification of magnesium (Mg) alloy stents for better degradation...

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...

Coupling physics in machine learning to investigate the solution behavior of binary Mg alloys

The solution behavior of a second element in the primary phase (α(Mg)) is important in the design of high-performance alloys. In this work, three sets of features have been collected: a) interaction...

Underlying slip/twinning activities of Mg-xGd alloys investigated by modified lattice rotation analysis

The inconsistencies regarding the fundamental correlation between Gd content and slip (twinning) activities of Mg alloys appeal further investigations. However, the traditional slip dislocations analysis...

Antibacterial activity of bioceramic coatings on Mg and its alloys created by plasma electrolytic oxidation (PEO): A review

Available online 23 July 2021
Arash Fattah-alhosseini | Maryam Molaei | Meisam Nouri | Kazem Babaei

Mg and its alloys are suitable choices for implant materials due to their biodegradability and biocompatibility features. However, the high electrochemical activity of this family of biomaterials results...

Nucleation and growth behavior of coating film on Mg–Al–Zn alloy with different surface topographies via plasma electrolytic oxidation

Available online 23 July 2021
Nisa Nashrah | Sung Hun Baek | Young Gun Ko

This work was made to investigate how nucleation and growth behavior of the coating film were affected by surface topographies of Mg–Al–Zn alloy substrate during the initial stage of plasma electrolytic...

Investigations on the tensile deformation of pure Mg and Mg–15Gd alloy by in-situ X-ray synchrotron radiation and visco-plastic self-consistent modeling

In this study, the texture evolutions of two Mg materials during tension are explored. In-situ X-ray synchrotron and Visco-Plastic Self-Consistent (VPSC) modeling are employed to investigate the different...

Is Mg17Al12 ductile or brittle? A theoretical insight

The Mg17Al12-phase, which is common and important in Mg-Al alloy, has long been regarded as a brittle phase in experiments but theoretical calculations report controversial results. To unravel why theoretical...

A novel method towards improving the hydrogen storage properties of hypoeutectic Mg-Ni alloy via ultrasonic treatment

Ultrasonic treatment has great contributions on modifying the morphology, dimension and distribution of constituent phases during solidification, which serve as dominate factors influencing the hydrogen...

Friction-based riveting technique for AZ31 magnesium alloy

A new friction-based riveting technique, Rotating Hammer Riveting (RHR), is demonstrated to fully form AZ31 Mg rivet heads in a mere 0.23 s. Heat and pressure generated through severe plastic deformation...

Hydrogen absorption/desorption cycling performance of Mg-based alloys with in-situ formed Mg2Ni and LaHx (x = 2, 3) nanocrystallines

Available online 22 July 2021
Fenghai Guo | Tiebang Zhang | Limin Shi | Lin Song

Aiming to elucidate the hydrogen absorption/desorption cycling properties of Mg-based alloys with in-situ formed Mg2Ni and LaHx (x = 2, 3) nanocrystallines, the hydrogen storage cycle stability, hydriding/dehydriding...

Experimental and quantum chemical studies of carboxylates as corrosion inhibitors for AM50 alloy in pH neutral NaCl solution

Sodium salts of mono- and di- carboxylic acids (glycolic, fumaric and benzoic acid) were studied as corrosion inhibitors for AM50 alloy in pH neutral aqueous NaCl environment. Hydrogen evolution, electrochemical...

Low-temperatures synthesis of CuS nanospheres as cathode material for magnesium second batteries

Available online 22 July 2021
Qin Zhang | Yaobo Hu | Jun Wang | Fusheng Pan

Rechargeable magnesium batteries (RMBs), as one of the most promising candidates for efficient energy storage devices with high energy, power density and high safety, have attracted increasing attention....

Influence of Ni interlayer on interfacial microstructure and mechanical properties of Ti-6Al-4V/AZ91D bimetals fabricated by a solid–liquid compound casting process

The solid–liquid compound casting of Mg-AZ91D and Ti-TC4 alloys was developed by using pure Ni electro-deposited coating. The pouring temperatures of 660 ℃, 690 ℃, 720 ℃ and 750 ℃ were chosen to investigated...

Microstructure and surface texture driven improvement in in-vitro response of laser surface processed AZ31B magnesium alloy

The present work explored effects of laser surface melting on microstructure and surface topography evolution in AZ31B magnesium alloy. Thermokinetic effects experienced by the material during laser...

Comparison of the corrosion behavior of AM60 Mg alloy with and without self-healing coating in atmospheric environment

Coatings on the surface of Mg alloys are inevitably damaged during their practical applications, and corrosion can easily initiate from the damaged areas to accelerate the failure of Mg parts. A dual...

On investigating the soda-lime shot blasting of AZ31 alloy: Effects on surface roughness, material removal rate, corrosion resistance, and bioactivity

15 July 2021
Gurmider Singh | Sunpreet Singh | Chander Prakash | Seeram Ramakrishna

In the present study, a novel method of surface finish improvement is proposed using shot blasting of soda lime (SBSL) beads on the Mg-AZ31 alloy. The effect of the soda blasting process parameters,...

Electrochemical and corrosion behaviors of the wrought Mg–Y–Zn based alloys with high Y/Zn mole ratios

15 July 2021
Xuan Liu | Zijian Zhu | Jilai Xue

The electrochemical behaviors and corrosion resistance of the wrought Mg–Y–Zn based alloys with high Y/Zn mole ratio have been investigated in details. The results show that the corrosion resistance...

Corrosion resistance and superhydrophobicity of one-step polypropylene coating on anodized AZ31 Mg alloy

Superhydrophobic coatings have been considerably used in corrosion and its protection of metallic Mg. And the comprehensive performance (hydrophobicity, bonding strength, and corrosion resistance, etc.)...

A novel approach to determine residual stress field during FSW of AZ91 Mg alloy using combined smoothed particle hydrodynamics/neuro-fuzzy computations and ultrasonic testing

15 July 2021
A.R. Eivani | H. Vafaeenezhad | H.R. Jafarian | J. Zhou

The faults in welding design and process every so often yield defective parts during friction stir welding (FSW). The development of numerical approaches including the finite element method (FEM) provides...

Development and strengthening mechanisms of a hybrid CNTs@SiCp/Mg-6Zn composite fabricated by a novel method

The hybrid addition of CNTs was used to improve both the strengths and ductility of SiCp reinforced Mg matrix composites. A novel method was developed to simultaneously disperse SiCp and CNTs in Mg...

Role of heat balance on the microstructure evolution of cold spray coated AZ31B with AA7075

15 July 2021
Bahareh Marzbanrad | Mohammad Hadi Razmpoosh | Ehsan Toyserkani | Hamid Jahed

A promising solid-state coating mechanism based on the cold spray technique provides highly advantageous conditions on thermal-sensitive magnesium alloys. To study the effect of heat balance in cold...

Low-loss Cd-substituted Mg ferrites with matching impedance for high-frequency-range antennas

The effects of Cd2+ ions on the microstructure, magnetic properties, and dielectric properties of Bi2O3-added MgFe2O4 ferrites (CdxMg1-xFe2O4, x = 0.00, 0.15, 0.30 and 0.45) are obtained by adopting...

Microstructure and mechanical and corrosion properties of hot-extruded Mg–Zn–Ca–(Mn) biodegradable alloys

•Effect of extrusion temperature on properties of Mg–Zn–Ca–(Mn) alloys was studied.•Addition of Mn and decrease in extrusion temperature caused grain refinement.•Addition of Mn significantly reduced...

Effect of extrusion speed on microstructure and mechanical properties of the Mg-Ca binary alloy

This work reported the effect of extrusion speeds on the microstructures and mechanical properties of Mg-Ca binary alloy. The results showed that yield strength of the as-extruded Mg-1.2 wt.% Ca alloys...

Recent progress in in vivo studies and clinical applications of magnesium based biodegradable implants – A review

15 July 2021
Prithivirajan Sekar | Narendranath S | Vijay Desai

Biodegradable magnesium has regained great attention due to its ability to temporarily offer mechanical strength and degrade completely once the injured pathological tissue is healed. A few clinical...

Properties of polydimethylsiloxane hydrophobic modified duplex microarc oxidation/diamond-like carbon coatings on AZ31B Mg alloy

A reliable, high-performance coating procedure was developed using PDMS to modify a duplex MAO/DLC coating on an AZ31B Mg alloy. First, the duplex MAO/DLC coating was fabricated via a combined MAO and...

Superhydrophobic fluoride conversion coating on bioresorbable magnesium alloy – fabrication, characterization, degradation and cytocompatibility with BMSCs

A micro-nano structure CaF2 chemical conversion layer was prepared on fluoride-treated AZ31 alloy, then the composite fluoride conversion film (CaF2/MgF2) was modified by stearic acid (SA) and fabricated...

The effect of powder size on the mechanical and corrosion properties and the ignition temperature of WE43 alloy prepared by spark plasma sintering

Powder metallurgy is a powerful method for the preparation of materials with superior properties. This work aimed to investigate the effect of powder size on the microstructure, mechanical, and corrosion...