首页期刊导航|镁合金学报（英文）
期刊信息/Journal information
镁合金学报（英文）
镁合金学报（英文）

2213-9567

镁合金学报（英文）/Journal Journal of Magnesium and AlloysCSCD北大核心EISCI
正式出版
收录年代

    Crystal structure,phase transitions,and thermodynamic properties of magnesium metavanadate(MgV2O6)

    Guishang PeiCheng PanDapeng ZhongJunyi Xiang...
    1599-1609页
    查看更多>>摘要：As a promising anode material for magnesium ion rechargeable batteries,magnesium metavanadate(MgV2O6)has attracted considerable re-search interest in recent years.A MgV2O6 sample was synthesized via a facile solid-state reaction by multistep-firing stoichiometric mixtures of MgO and V2O5 powder under an air atmosphere.The solid-state phase transition from α-MgV2O6 to β-MgV2O6 occurred at 841 K and the en-thalpy change was(4.37±0.04)kJ·mol-1.The endothermic effect at 1014 K and the enthalpy change was(26.54±0.26)kJ·mol-1,which is related to the incongruent melting of β3-MgV2O6.In situ XRD was performed to investigate phase transition of the as-prepared MgV2O6 at high temperatures.The cell parameters obtained by Rietveld refinement indicated that it crystallizes in a monoclinic system with the C2/m space group,and the lattice parameters of a=0.9280 nm,b=0.3501 nm,c=0.6731 nm,β=111.76°.The solid-state phase transition from α-MgV2O6 to β-MgV2O6 was further studied by thermal kinetics,indicating that this process is controlled first by a fibril-like mechanism and then by a spherulitic-type mechanism with an increasing heating rate.Additionally,the enthalpy change of MgV2O6 at high temperatures was meas-ured utilizing the drop calorimetry,heat capacity was calculated and given as:Cp=208.3+0.03583T-4809000T-2(298-923 K)(J·mol-1·K-1),the high-temperature heat capacity can be used to calculate Gibbs free energy of MgV2O6 at high temperatures.
      原文链接:
    • 万方数据

    Design multifunctional Mg-Zr coatings regulating Mg alloy bioabsorption

    Zohra BenzartiSandesh ItaniJosé David CastroSandra Carvalho...
    1610-1628页
    查看更多>>摘要：Magnesium(Mg)alloys are widely used for temporary bone implants due to their favorable biodegradability,cytocompatibility,hemocompati-bility,and close mechanical properties to bone.However,rapid degradation and inadequate strength limit their applicability.To overcome this,the direct current magnetron sputtering technique is employed for surface coating in Mg-based alloys using various zirconium(Zr)content.This approach presents a promising strategy for simultaneously improving corrosion resistance,maintaining biocompatibility,and enhancing strength without compromising osseointegration.By leveraging Mg's inherent biodegradability,it has the potential to minimize the need for secondary surgeries,thereby reducing costs and resources.This paper is a systematic study aimed at understanding the corrosion mechanisms of Mg-Zr coatings,denoted Mg-xZr(x=0％-5％,atomic percent).Zr-doped coatings exhibited columnar growth leading to denser and refined structures with increasing Zr content.XRD analysis con-firmed the presence of the Mg(00.2)basal plane,shifting towards higher angles(1.15°)with 5％(atomic percent)Zr doping due to lattice pa-rameter changes(i.e.,decrease and increase of"c"and"a"lattice parameters,respectively).Mg-Zr coatings exhibited"liquidphilic"behavior,while Young's modulus retained a steady value around 80 GPa across all samples.However,the hardness has significantly improved across all samples'coating,reaching the highest value of(2.2±0.3)GPa for 5％Zr.Electrochemical testing in simulated body fluid(SBF)at 37 ℃ re-vealed a significant enhancement in corrosion resistance for Mg-Zr coatings containing 1.0％-3.4％(atomic percent)Zr.Compared with the 5％Zr coating which exhibited a corrosion rate of 32 mm·a-1,these coatings displayed lower corrosion rates,ranging from 1 mm·a-1 to 12 mm·a-1.This synergistic enhancement in mechanical properties and corrosion resistance,achieved with 2.0％-3.4％(atomic percent)Zr,sug-gests potential ability for reducing stress shielding and controlled degradation performance,and consequently,promising functional biodegrada-ble materials for temporary bone implants.
      原文链接:
    • 万方数据

    Tailoring the texture and mechanical properties of 3％Y2O3p/ZGK200 composites fabricated by unidirectional and cross rolling followed by annealing

    Xihai LiHong YanZhiwei ShanRongshi Chen...
    1629-1647页
    查看更多>>摘要：3％Y2O3p/ZGK200 composites were subjected to unidirectional rolling(UR)and cross rolling(CR)at 400 ℃ and 350 ℃ followed by an-nealing at 300 ℃ for 1 h.The microstructure,texture and mechanical properties of rolled and annealed composites were systematically studied.The rolled composites exhibited a heterogeneous microstructure,consisting of deformed grains elongated along rolling direction(RD)and Y2O3 particles bands distributed along RD.After annealing,static recrystallization(SRX)occurred and most deformed grains transformed into equi-axed grains.A non-basal texture with two strong T-texture components was obtained after UR while a non-basal elliptical/circle texture with cir-cle multi-peaks was obtained after CR,indicating that rolling path had great influences on texture of the composites.After annealing process,R-texture component disappeared or weakened,as results,a non-basal texture with double peaks tilting from normal direction(ND)to transverse direction(TD)and a more random non-basal texture with circle multi-peaks were obtained for UR and CR composites,respectively.The yield strength of rolled composites after UR showed obvious anisotropy along RD and TD while a low anisotropic yield strength was obtained after CR.Some Y2O3 particles broke during rolling.The fracture of the composites was attributed to the existence of Y2O3 clusters and interfacial debonding between particles and matrix during tension,as a result,the ductility was not as superior as matrix alloy.
      原文链接:
    • 万方数据

    Comparative analysis of microstructure,mechanical,and corrosion properties of biodegradable Mg-3Y alloy prepared by selective laser melting and spark plasma sintering

    P.MinárikM.ZemkováS.?a?ekJ.Dittrich...
    1648-1664页
    查看更多>>摘要：This work explored possibilities of biodegradable magnesium alloy Mg-3Y preparation by two modem powder metallurgy techniques-spark plasma sintering(SPS)and selective laser melting(SLM).The powder material was consolidated by both methods utilising optimised parame-ters,which led to very low porosity(about 0.3％)in the SLM material and unmeasurably low porosity in the SPS material.The main aim of the study was the thorough microstructure characterisation and interrelation between the microstructure and the functional properties,such as me-chanical strength,deformability,and corrosion resistance.Both materials showed comparable strength of about 110 MPa in tension and compres-sion and relatively good deformability of about 9％and 21％for the SLM and SPS materials,respectively.The corrosion resistance of the SPS material in 0.1 mol·L-1 NaCl solution was superior to the SLM one and comparable to the conventional extruded material.The digital image correlation during loading and the cross-section analysis of the corrosion layers revealed that the residual porosity and large strained grains have the dominant negative effect on the functional properties of the SLM material.On the other hand,one of the primary outcomes of this study is that the SPS consolidation method is very effective in the preparation of the W3 biodegradable alloy,resulting in material with convenient me-chanical and degradation properties that might find practical applications.
      原文链接:
    • 维普
    • 万方数据

    Anomalous { 10(1)2} tensile twinning and subsequent detwinning in a friction stir processed carbon fiber-reinforced Mg composite

    Wei ZhaoZhihao JiangXiang WuYujing Liu...
    1665-1673页
      原文链接:
    • 万方数据

    Prediction of corrosion rate for friction stir processed WE43 alloy by combining PSO-based virtual sample generation and machine learning

    Annayath MaqboolAbdul KhaladNoor Zaman Khan
    1674-1684页
    查看更多>>摘要：The corrosion rate is a crucial factor that impacts the longevity of materials in different applications.After undergoing friction stir processing(FSP),the refined grain structure leads to a notable decrease in corrosion rate.However,a better understanding of the correlation between the FSP process parameters and the corrosion rate is still lacking.The current study used machine learning to establish the relationship between the corrosion rate and FSP process parameters(rotational speed,traverse speed,and shoulder diameter)for WE43 alloy.The Taguchi L27 design of experiments was used for the experimental analysis.In addition,synthetic data was generated using particle swarm optimization for virtual sam-ple generation(VSG).The application of VSG has led to an increase in the prediction accuracy of machine learning models.A sensitivity analy-sis was performed using shapley additive explanations to determine the key factors affecting the corrosion rate.The shoulder diameter had a sig-nificant impact in comparison to the traverse speed.A graphical user interface(GUI)has been created to predict the corrosion rate using the i-dentified factors.This study focuses on the WE43 alloy,but its findings can also be used to predict the corrosion rate of other magnesium alloys.
      原文链接:
    • 维普
    • 万方数据

    {10(1)2} twin-twin intersection-induced lattice rotation and dynamic recrystallization in Mg-6Al-3Sn-2Zn alloy

    Bin-Jiang LvSen WangFu-Hao GaoNing Cui...
    1685-1697页
    查看更多>>摘要：This study investigated the formation mechanism of new grains due to twin-twin intersections in a coarse-grained Mg-6Al-3Sn-2Zn alloy dur-ing different strain rates of an isothermal compression.The results of electron backscattered diffraction investigations showed that the activated twins were primarily {10(1)2} tension twins,and 60°<10(1)0>boundaries formed due to twin-twin intersections under different strain rates.Isola-ted twin variants with 60°<10(1)0>boundaries transformed into new grains through lattice rotations at a low strain rate(0.01 s-1).At a high strain rate(10 s-1),the regions surrounded by subgrain boundaries through high-density dislocation arrangement and the 60°<10(1)0>boundaries transformed into new grains via dynamic recrystallization.
      原文链接:
    • 万方数据

    Predictive modeling of critical temperatures in magnesium compounds using transfer learning

    Surjeet KumarRussian JaafrehSubhajit DuttaJung Hyeon Yoo...
    1698-1712页
    查看更多>>摘要：This study presents a transfer learning approach for discovering potential Mg-based superconductors utilizing a comprehensive target dataset.Initially,a large source dataset(Bandgap dataset)comprising approximately about 75k compounds is utilized for pretraining,followed by fine-tuning with a smaller critical temperature(Tc)dataset containing about 300 compounds.Comparatively,there is a significant improvement in the performance of the transfer learning model over the traditional deep learning(DL)model in predicting Tc.Subsequently,the transfer learning model is applied to predict the properties of approximately 150k compounds.Predictions are validated computationally using density functional theory(DFT)calculations based on lattice dynamics-related theory.Moreover,to demonstrate the extended predictive capability of the transfer learning model for new materials,a pool of virtual compounds derived from prototype crystal structures from the materials project(MP)data-base is generated.Tc predictions are obtained for about 3600 virtual compounds,which underwent screening for electroneutrality and thermody-namic stability.An Extra Trees-based model is trained to utilize Ehull values to obtain thermodynamically stable materials,employing a dataset containing Ehull values for approximately 150k materials for training.Materials with Ehull values exceeding 5 meV·atom-1 were filtered out,re-sulting in a refined list of potential Mg-based superconductors.This study showcases the effectiveness of transfer learning in predicting super-conducting properties and highlights its potential for accelerating the discovery of Mg-based materials in the field of superconductivity.
      原文链接:
    • 维普
    • 万方数据

    Tailoring the micro structure of Mg-Al-Sn-RE alloy via friction stir processing and the impact on its electrochemical discharge behaviour as the anode for Mg-air battery

    Jingjing LiuHao HuTianqi WuJinpeng Chen...
    1713-1726页
    查看更多>>摘要：Constructing the magnesium alloy with fine grains,low density of dislocations,and weak crystal orientation is of crucial importance to en-hance its comprehensive performance as the anode for Mg-air battery.However,this unique microstructure can hardly be achieved with conven-tional plastic deformation such as rolling or extrusion.Herein,we tailor the microstructure of Mg-Al-Sn-RE alloy by using the friction stir pro-cessing,which obviously refines the grains without increasing dislocation density or strengthening crystal orientation.The Mg-air battery with the processed Mg-Al-Sn-RE alloy as the anode exhibits higher discharge voltages and capacities than that employing the untreated anode.Fur-thermore,the impact of friction stir processing on the electrochemical discharge behaviour of Mg-Al-Sn-RE anode and the corresponding mech-anism are also analysed according to microstructure characterization and electrochemical response.
      原文链接:
    • 万方数据

    Corrosion and in vitro cytocompatibility investigation on the designed Mg-Zn-Ag metallic glasses for biomedical application

    Jian WangLingzhong MengWeixin XieChen Jia...
    1727-1743页
    查看更多>>摘要：In the present work,seven Mg-Zn-Ag alloys with the nominal composition of Mg96-xZn,Ag4(x=17％,20％,23％,26％,29％,32％,35％in atomic percent)were prepared by induction melting and single-roller melt-spinning.The X-ray diffraction(XRD)analyses indicate the metal-lic glasses with three composition of Mg73Zn23Ag4,Mg70Zn26Ag4,and Mg67Zn29Ag4 were obtained successfully.The differential scanning calo-rimetry(DSC)measurement was used to obtain the characteristic temperature of Mg-Zn-Ag metallic glasses for the glass-forming ability analy-sis.The maximum glass transition temperature(Trg)was found to be 0.525 with a composition close to Mg67Zn29Ag4,which results in the best glass-forming ability.Moreover,the immersion test in simulated body fluid(SBF)demonstrate the relative homogeneous corrosion behavior of the Mg-Zn-Ag metallic glasses.The corrosion rate of Mg-Zn-Ag metallic glasses in SBF solution decreases with the increase of Zn content.The sample Mg67Zn29Ag4 has the lowest corrosion rate of 0.19 mm·a-1,which could meet the clinical application requirement well.The in vitro cell experiments show that the Madin-Darby canine kidney(MDCK)cells cultured in sample Mg67Zn29Ag4 and its extraction medium have higher activity.However,the Mg-Zn-Ag metallic glasses exhibit obvious inhibitory effect on human rhabdomyosarcoma(RD)tumor cells.The present investigations on the glass-forming ability,corrosion behavior,cytocompatibility and tumor inhibition function of the Mg-Zn-Ag based metallic glass could reveal their biomedical application possibility.
      原文链接:
    • 维普
    • 万方数据