Journal of Magnesium and Alloys最新文献

{"title":"Self-assembled biodegradable herbal-based nanoflower decorative magnesium implants combine therapy with bone regeneration","authors":"Huihui Du ,&nbsp;Dongdong Zhang ,&nbsp;Kui Xue ,&nbsp;Limin Ma ,&nbsp;Ru Xu ,&nbsp;Ji Tan ,&nbsp;Feng Peng ,&nbsp;Xuanyong Liu","doi":"10.1016/j.jma.2023.11.012","DOIUrl":"10.1016/j.jma.2023.11.012","url":null,"abstract":"<div><div>The rapid corrosion rate and limited biological functionality still pose challenges for magnesium (Mg)-based implants in the treatment of complicated bone-related diseases in clinic. Herein, a multifunctional biodegradable curcumin (herbal medicine)-ferrum (Cur-Fe) nanoflower was self-assembled on plasma electrolytic oxidation (PEO)-treated Mg alloy via a facile immersion process to realize differential biological function for anti-bacteria/tumor and bone regeneration. The results indicated that Cur-Fe nanoflower coating can promote protein adsorption, cell adhesion and proliferation, exhibiting excellent biocompatibility. The Cur-Fe nanoflower coating exhibits unique degradation characteristics, as curcumin gradually decomposes into ferulic acid, aromatic aldehyde and other antibacterial substances, and the coating spontaneously converts into FeOOH nanosheets, ensuring the corrosion resistance of Mg-based implants. Moreover, Cur-Fe coating exhibits remarkable narrow gap semiconductor characteristics, which can generate reactive oxygen species (ROS) and demonstrated excellent antibacterial effect under simulated sunlight (SSL) irradiation. Meanwhile, under NIR irradiation, Cur-Fe coating showed excellent chemotherapy/photodynamic/photothermal synergetic antitumor properties <em>in vitro</em> and <em>in vivo</em> due to the introduction of curcumin, and photocatalysis and photothermal conversion properties of coating. Furthermore, Cur-Fe nanoflower coating demonstrated great osteogenesis activity <em>in vitro</em> and <em>in vivo</em> due to unique micro/nano structure, surface chemical bond, and the release of Mg and Fe ions.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 130-147"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139574118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnesium is at a crossroads: An industrial metal or a technology metal?","authors":"Alan A. Luo","doi":"10.1016/j.jma.2024.12.017","DOIUrl":"10.1016/j.jma.2024.12.017","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 1-3"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142974813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An overview of RE-Mg-based alloys for hydrogen storage: Structure, properties, progresses and perspectives","authors":"Dongsheng Zhou ,&nbsp;Chunling Zheng ,&nbsp;Yanghuan Zhang ,&nbsp;Hanfeng Sun ,&nbsp;Peng Sheng ,&nbsp;Xin Zhang ,&nbsp;Jun Li ,&nbsp;Shihai Guo ,&nbsp;Dongliang Zhao","doi":"10.1016/j.jma.2024.12.020","DOIUrl":"10.1016/j.jma.2024.12.020","url":null,"abstract":"<div><div>Rare earth (RE) elements have been successfully utilized in solid-state hydrogen storage as hydrogen-absorbing elements with excellent hydrogen storage properties in terms of safety and efficiency. RE-Mg-based hydrogen storage materials with high magnesium content are considered to be one of the most promising hydrogen storage materials for application due to their high mass/volume hydrogen storage density, moderate required hydrogen pressure, good reversibility, non-toxicity, and harmlessness. Furthermore, RE-Mg-based materials with low magnesium content and superlattice structure show great potential for application in the field of solid-state hydrogen storage. They are also widely used as anode materials for nickel-metal hydride batteries. In this paper, we comprehensively summarized and evaluated the organization and hydrogen storage properties of different RE-Mg system alloys (Mg-RE, Mg-RE-TM (TM=transition metals), and superlattice-type RE-Mg-TM) and the catalytic effect and mechanisms of catalysts on RE-Mg system alloys. The interactions between the types of RE elements, the contents of RE elements, the crystal structures, and the catalysts with the microstructure morphology and hydrogen storage properties of RE-Mg-based hydrogen storage alloys were established. The intrinsic mechanisms between microstructure morphology, phase structure, phase composition, and hydrogen storage properties of alloys with different RE-Mg-based systems were elucidated. By comparing the differences and characteristics between the organizational structures and hydrogen storage properties of different RE-Mg systems, a feasible idea and solution for the rational design and development of RE-Mg-based alloys with high hydrogen storage capacity, low cost, and fast hydrogen absorption and desorption kinetics was proposed.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 41-70"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing multivalent NiMn-based layered nanosheets with high specific surface area and abundant active sites for solid-state hydrogen storage in magnesium hydride","authors":"Tao Zhong ,&nbsp;Tian Xu ,&nbsp;Liuting Zhang ,&nbsp;Fuying Wu ,&nbsp;Yiqun Jiang ,&nbsp;Xuebin Yu","doi":"10.1016/j.jma.2024.04.027","DOIUrl":"10.1016/j.jma.2024.04.027","url":null,"abstract":"<div><div>Catalytic doping of magnesium hydride (MgH₂) to improve its hydrogen ab/desorption kinetic properties is considered to be an effective and feasible method. In solid-phase catalysis, the extent of contact between the catalyst and the substrate determines the catalytic reaction in a great sense. With large specific surface area and abundant active sites, two-dimensional (2D) nanomaterials are promising catalysts for MgH₂ via providing numerous pathways for the diffusion and dissociation of hydrogen. In this regard, 2D NiMn-based layered double hydroxide and layered metallic oxide (LMO) are designed and introduced into MgH₂ to improve its hydrogen storage properties. Simultaneous enhancement in interfacial contact, desorption temperature and kinetics are achieved. The MgH₂+9wt% Ni₃Mn-LMO composites begin to discharge hydrogen at only 190 °C and 6.10wt% H₂ could be charged in 600 s at 150 °C. The activation energy for de/hydrogenation is reduced by 42.43% and 46.56%, respectively, compared to pure MgH₂. Even at a low operating temperature of 235 °C, the modified system was still able to release 4.44wt% H₂ in an hour, which has rarely been reported in previous studies. Microstructure observations and density functional theory calculations revealed that first, the hydrogen pumping effect of Mg₂Ni/Mg₂NiH₄ promotes the adsorption and desorption of hydrogen molecules on the surface of MgH₂, second, MnO_x drew electrons from Mg₂Ni, producing a new Density of State structure with a lower d-bond center. This unique change further strengthens the Mg₂Ni/Mg₂NiH₄ pump effect on MgH₂. Our work indicates that the application of 2D metal-based catalysts is a feasible and promising approach towards MgH₂ for solid-state hydrogen storage to meet technical and scientific requirements.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 148-160"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141027006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tuning the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy: The effect of pretreatment and organic additive","authors":"Siyu Sun ,&nbsp;Peng Zhou ,&nbsp;Yan Chen ,&nbsp;JinTao Xiao ,&nbsp;Jingli Sun ,&nbsp;Yong Yuan ,&nbsp;Tao Zhang ,&nbsp;Fuhui Wang","doi":"10.1016/j.jma.2023.09.037","DOIUrl":"10.1016/j.jma.2023.09.037","url":null,"abstract":"<div><div>In order to obtain a more protective phosphate conversion coating with a denser architecture, the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy was tuned in this work. A pretreatment process was proposed and organic additives were incorporated, which aims at increasing the ionic produce (<em>J</em>_sp) at the interface for increasing σ, and decreasing the critical ionic product (<em>J</em>_C,sp), respectively. Results prove that the pretreatment of bare alloys in a phosphate bath could increase the ion products of MgHPO₄ / MnHPO₄. The addition of benzalkonium chloride could neutralize the charges of crystals, and in turn promote the nucleation kinetics. A denser and more protective conversion coating could consequently be obtained.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 207-218"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138492282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface properties of friction stir welded dissimilar joints of AA7075 and Mg-WE43 alloys: Effect of positional arrangement","authors":"Tariq Ahmad ,&nbsp;Nadeem Fayaz Lone ,&nbsp;Noor Zaman Khan ,&nbsp;Babar Ahmad ,&nbsp;Arshad Noor Siddiquee ,&nbsp;Daolun Chen","doi":"10.1016/j.jma.2024.12.022","DOIUrl":"10.1016/j.jma.2024.12.022","url":null,"abstract":"<div><div>This study investigates the surface properties of the dissimilar AA7075/Mg-WE43 joints wherein the effect of positioning the AA7075 on the advancing or retreating sides during friction stir welding (FSW) was scrutinized. The EBSD analysis revealed that the average grain size reduced from 4.11 ± 0.7 µm to 2.04 ± 0.9 µm when AA7075 was shifted from advancing to retreating side. The results showed that positioning AA7075 on the retreating side significantly reduced the wear rate from 0.41 mm³/Nm to 0.27 mm³/Nm and mitigates the problem of brittle intermetallic compound (IMC) formation, consequently reducing the average microhardness. Corrosion resistance improved from 77.59 mpy to 56.299 mpy. The higher grain refinement improved wear resistance due to higher grain boundary density and greater chances of formation of protective oxide films. The current work thus enhances the practical applicability of AA7075/Mg-WE43 welds for lightweighting of automotive structures.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 398-413"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142974810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermodynamic and experimental evaluation of the sustainable recycling of magnesium alloy scrap by vacuum distillation based on vapor-liquid equilibrium","authors":"Lipeng Wang ,&nbsp;Dong Liang ,&nbsp;Yang Tian ,&nbsp;Jianxue Chai ,&nbsp;Rui Li ,&nbsp;Shuji Wu ,&nbsp;Bin Yang ,&nbsp;Baoqiang Xu ,&nbsp;Yong Deng","doi":"10.1016/j.jma.2023.12.011","DOIUrl":"10.1016/j.jma.2023.12.011","url":null,"abstract":"<div><div>Magnesium (Mg) alloys are widely used lightweight structural materials for automobiles and help reduce carbon emissions. However, their use increases the production of Mg alloy scrap, which is recycled at a much lower rate than aluminum, and its greater complexity poses challenges to existing recycling processes. Although vacuum distillation can be used to recycle Mg alloy scrap, this requires optimizing and maximizing metal recirculation, but there has been no thermodynamic analysis of this process. In this study, the feasibility and controllability of separating inclusions and 23 metal impurities were evaluated, and their distribution and removal limits were quantified. Thermodynamic analyses and experimental results showed that inclusions and impurity metals of separation coefficient lg<em>β_i</em> ≤ -5, including Cu, Fe, Co, and Ni below 0.001 ppm, could be removed from the matrix. All Zn entered the recycled Mg, while impurities with -1 &lt; lg<em>β_i</em> &lt; -5 such as Li, Ca, and Mn severely affected the purity of the recycled Mg during the later stage of distillation. Therefore, an optimization strategy for vacuum distillation recycling: lower temperatures and higher system pressures for Zn separation in the early stage, and the early termination of the recovery process in the later stage or a continuous supply of raw melt can also prevent contamination during recycling. The alloying elements Al and Zn in Mg alloy scrap can be further recovered and purified by vacuum distillation when economically feasible, to maximize the recycling of metal resources.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 283-295"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139574128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic mechanical response and deformation-induced co-axial nanocrystalline grains facilitating crack formation in magnesium-yttrium alloy","authors":"Shuang Yang ,&nbsp;Fei Liu ,&nbsp;Fei Chen ,&nbsp;Yuan-Biao Tan ,&nbsp;Hao Fu ,&nbsp;Si-Yuan Wei ,&nbsp;Song Xiang","doi":"10.1016/j.jma.2024.09.011","DOIUrl":"10.1016/j.jma.2024.09.011","url":null,"abstract":"<div><div>The dynamic mechanical response and deformation mechanism of magnesium-yttrium alloy at high strain rate were investigated using split-Hopkinson pressure bar (SHPB) impact, and the microstructure evolution and crack formation mechanism were revealed. The yield strength and work hardening rate increase significantly with increasing impact strain rate. Deformation twinning and non-basal dislocation slip are the primary deformation mechanisms during testing. Contrary to crack initiation mechanism facilitated by adiabatic shear bands, we find that high-density co-axial nanocrystalline grains form near cracks, which leads to local softening and promotes crack initiation and rapid propagation. Most grains have similar <span><math><mrow><mo>〈</mo><mrow><mover><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>0</mn></mrow><mo>〉</mo></mrow></math></span> orientations, with unique misorientation of 24°, 32°, 62°, 78° and 90° between adjacent grains, suggesting that these grains are primarily formed by interface transformation, which exhibits distinct differences from recrystallized grains. Our results shed light upon the dynamic mechanical response and crack formation mechanism in magnesium alloys under impact deformation.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 429-441"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142385620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of metal ion implantation (Fe, Ti, Zn and Zr) on mechanical properties, corrosion resistance and biocompatibility of WE43 Mg alloy","authors":"Lianhui Li ,&nbsp;Zhiqiang Zhang ,&nbsp;Dechuang Zhang ,&nbsp;Fugang Qi ,&nbsp;Yilong Dai ,&nbsp;Wenwen Wei ,&nbsp;Xiaoping Ouyang","doi":"10.1016/j.jma.2024.05.005","DOIUrl":"10.1016/j.jma.2024.05.005","url":null,"abstract":"<div><div>To improve the corrosion resistance of biodegradable Mg alloys, WE43 alloys were implanted with Fe, Ti, Zn and Zr ions at the same implantation dose. The surface morphology, valence state of elements, nano-hardness (NH), elastic modulus (EM), degradation rate and <em>in vitro</em> cell experiments of the modified WE43 alloys were systematically studied. A modified layer composed of Mg, MgO, the implanted elements and their oxides was formed on the modified alloys. Since high-speed metal ions caused severe surface lattice damage, the surface hardness of the substrate considerable increased. Electrochemical tests demonstrated a substantial enhancement in the corrosion resistance of the modified alloys via the implantation of Ti and Zr ions, resulting in a reduction of the corrosion current density to 88.1 ± 9.9 and 15.6 ± 11.4 µA cm⁻², respectively, compared with the implantation of Fe and Zn ions. Biocompatibility tests showed that the implantation of Fe, Ti, Zn and Zr ions enhanced the anticoagulant and hemolytic resistance of the WE43 alloy. All surface-modified samples showed negligible cytotoxicity (0–1) at 12.5% extract concentration. Moreover, the alloys implanted with Fe, Ti and Zn ions significantly promoted proliferation of human umbilical vein endothelial cells (HUVEC) compared with the unmodified alloy. The results demonstrate that Ti ion implantation is the best choice for WE43 alloy modification to achieve outstanding corrosion resistance and biocompatibility.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 296-310"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141132148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Micromechanical modeling and evaluation of CNTs reinforced magnesium matrix composites based on stress softening modified constitutive model","authors":"Mingjie Shen ,&nbsp;Baojian Han ,&nbsp;Tao Ying ,&nbsp;Jingya Wang ,&nbsp;Liping Zhou ,&nbsp;Xiangzhen Xue ,&nbsp;Yang Gao ,&nbsp;Zongyang Yang","doi":"10.1016/j.jma.2024.04.008","DOIUrl":"10.1016/j.jma.2024.04.008","url":null,"abstract":"<div><div>Heterogeneous composites have strong anisotropy and are prone to dynamic recrystallization during hot compression, making the mechanical response highly nonlinear. Therefore, it is a very challenging task to intellectually judge the thermal deformation characteristics of magnesium matrix composites (MgMCs). In view of this, this paper introduces a method to accurately solve the thermoplastic deformation of composites. Firstly, a hot compression constitutive model of magnesium matrix composites based on stress softening correction was established. Secondly, the complex quasi-realistic micromechanics modeling of heterogeneous magnesium matrix composites was conducted. By introducing the recrystallization softening factor and strain parameter into the constitutive equation, the accurate prediction of the global rheological response of the composites was realized, and the accuracy of the new constitutive model was proved. Finally, the thermal processing map of magnesium matrix composites was established, and the suitable processing range was chosen. This paper has certain guiding values for the prediction of the thermodynamic response and thermal processing of magnesium matrix composites.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":"Pages 243-259"},"PeriodicalIF":15.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140770836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}