Journal of Magnesium and Alloys最新文献

{"title":"The TM single-atom catalytic system bidirectionally enhances the hydrogen absorption/desorption kinetics of Mg/MgH2: An insight into the synergetic enhancement mechanism and underlying principle","authors":"Congwen Duan, Haimei Wang, Xinya Wang, Yupeng Liu, Jinhui Wu, Lianxi Hu, Bogu Liu, Haixiang Huang, Fei Wang, Ying Wu","doi":"10.1016/j.jma.2024.11.020","DOIUrl":"https://doi.org/10.1016/j.jma.2024.11.020","url":null,"abstract":"Mg/MgH₂ has garnered significant attention primarily due to its abundant availability and high gravimetric density. Nevertheless, its practical implementation hindered by its high thermodynamic stability and sluggish kinetics. Fortunately, the introduction of transition metal single atom (TM SA) catalysts has emerged as an effective method to enhance the hydrogen storage properties of Mg/MgH₂. Among these catalysts, the synergistic effect of nanoconfinement and TM SAs plays a pivotal role in the hydriding/dehydriding kinetics of Mg/MgH₂. However, the effects of varying TM SAs interacting with N modified confined materials on H₂ adsorption and desorption and underlying mechanisms remain enigmatic. Leveraging DFT calculations, we investigated the potential of combining TM SA catalysts with N-modified Carbon nanomaterials (CNT) to enhance the hydrogenation/dehydrogenation of Mg/MgH₂. TM SA N<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>CNTs-Mg/MgH₂ heterojunction systems encompassing ten 3d/4d transition metals were designed and constructed. We systematically investigated the impact of TM SA N<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>CNTs on the hydrogen absorption and desorption properties of Mg/MgH₂ by examining parameters such as the electronic localization function (ELF), distorted charge density distributions, adsorption energies, dissociation energies, electronegativity, and the <span>d</span>-band center. Notably, the energy barriers for Mg/MgH₂ hydrogenation and dehydrogenation were significantly reduced by 0.2–0.7 eV and 1.6–2.2 eV, respectively, through the catalytic promotion of TM SA N<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>CNTs. Herein, a novel “electronic-ropeway” effect was proposed to elucidate the underlying mechanism responsible for enhancing the hydrogen absorption and desorption kinetics in Mg/MgH₂. Specifically, the contribution degree of TM SA N<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>CNTs and system electronegativity emerged as effective descriptors for predicting the reduced hydrogenation/dehydrogenation energy barriers. It is anticipated that elucidating the role of TM SA-N-CNTs will pave the way for developing innovative strategies to enhance the hydrogen absorption and desorption kinetics of Mg/MgH₂ systems, thereby providing valuable design principles for the construction of novel Mg/MgH₂ hydrogen storage materials.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"14 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142776642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Realizing ultra-high strength and excellent ductility in a low-alloyed biomedical Mg-Zn-Ca-MgO composite","authors":"Chaokun Tang ,&nbsp;Shaoyuan Lyu ,&nbsp;Ruixiao Zheng ,&nbsp;Guodong Li ,&nbsp;Zhongyang Liu ,&nbsp;Minfang Chen ,&nbsp;Bin Jiang","doi":"10.1016/j.jma.2024.01.004","DOIUrl":"10.1016/j.jma.2024.01.004","url":null,"abstract":"<div><div>An ultra-fine grained (UFG) Mg-1Zn-0.2Ca-1.0MgO composite with an average grain size of 0.49 µm as well as an excellent combination of yield strength (379 MPa) and ductility (10.1%) was produced by one-step extrusion. Subsequent heat treatment at 200 ℃ for 30 min further improved its yield strength to 420 MPa and elongation to 12.1% with a slight grain growth to 0.76 µm. Microstructure observations revealed that the precipitation of high number density of Ca₂Mg₆Zn₃ phase was the main reason for the enhanced strength after ageing treatment. Grain coarsening and recovery of dislocations during ageing improved the work-hardening capability of the extruded sample, leading to improved ductility. Our work provides a pathway for the mass production of strong and ductile Mg-based materials without excessive addition of alloying elements.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5108-5118"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139474574","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":"Ion recognition enables fast Mg–Cl bond dissociation kinetics and better Mg plating/stripping reversibility","authors":"Jiacheng Yang ,&nbsp;Jinlei Zhang ,&nbsp;Kun Zhang ,&nbsp;Jing Liu ,&nbsp;Zhenfang Zhou ,&nbsp;Zhenjiang Li ,&nbsp;Guicun Li ,&nbsp;Guanglei Cui ,&nbsp;Zhonghua Zhang","doi":"10.1016/j.jma.2023.09.021","DOIUrl":"10.1016/j.jma.2023.09.021","url":null,"abstract":"<div><div>Rechargeable Mg-metal batteries hold considerable promise for renewable energy storage and utilization. However, the Mg stripping/plating processes suffer from sluggish ion pairs dissociation kinetics, resulting in poor rate and cycle properties. In this work, an efficient skeleton host containing dissimilar coupling elements with varied electronegativity has been designed to promote interfacial reaction kinetics by accelerating the Mg–Cl bond dissociation process. As a proof-of-concept prototype, the N/O-doped cobalt nanoparticles embedded in carbonaceous polyhedrons has been synthesized <em>via</em> facile high temperature annealing of zeolitic imidazolate framework-67 (ZIF-67). The exposed electron-rich N/O sites and electron-deficient Co sites can regulate the adsorbing structure configuration of [Mg-Cl]⁺ complex ions by selectively bonding with the Mg²⁺ and Cl^– through chemical coordination linkage, respectively. The elongated bond length from 2.596 Å to 2.679 Å and the weakened bond strength are beneficial for the complex ions dissociation, leading to better charge transfer kinetics. In addition, the better magnesiophilic property accompanied by the conductive and porous permeable three-dimensional architecture realizes the homogeneous electrodeposition of Mg and improved electrode kinetics. The decreased overpotential has been verified in both magnesium organohaloaluminates electrolyte (from 290 mV to 189 mV) and conventional Mg(TFSI)₂-based electrolyte (from 600 mV to 200 mV). The designed skeleton host also exhibits excellent long cycle lifespan above 2300 h and extra-high average Coulombic efficiency of 99.65 % within 700 cycles. The accelerated bond splitting strategy enables improved metal-anode reversibility, which is also insightful to high concentrated or other electrolyte systems that contain abundant ion pairs or aggregates.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5205-5215"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72364899","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":"Evolution of deformation mechanisms and their orientation dependence in fine-grained Mg-3Gd during tension","authors":"Faping Hu ,&nbsp;Tianbo Yu ,&nbsp;Hao Chen ,&nbsp;Fang Han ,&nbsp;Keshun Dai ,&nbsp;Fangcheng Qiu ,&nbsp;Weidong Xie ,&nbsp;Xiaoxu Huang","doi":"10.1016/j.jma.2024.03.019","DOIUrl":"10.1016/j.jma.2024.03.019","url":null,"abstract":"<div><div>Magnesium alloys usually exhibit poor ductility attributed to their intrinsic hexagonal close-packed (hcp) structure, which fails to provide sufficient independent slip systems for homogeneous deformation. Here we demonstrate that multiple deformation mechanisms can be activated with increasing tensile strain in a fine-grained Mg-3Gd with a weak basal texture. 〈<em>c</em> + <em>a</em>〉 slip, tension twinning and compression/double twinning exhibit a high orientation dependence at an early stage of deformation, whereas the orientation dependence becomes less obvious with further increasing strain. The high work hardening rate at the strain of 2%–5% is accompanied by the significant increase of 〈<em>c</em> + <em>a</em>〉 slip and tension twinning activities. The fine microstructure strongly restricts the activation and growth of twinning, resulting in a slow exhaust of tension twinning and thin compression twins. The restriction of twinning and the activation of profuse 〈<em>c</em> + <em>a</em>〉 slip near grain/twin boundaries, relaxing the stress concentration, sustain the homogeneous deformation to a high strain.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5095-5107"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140769077","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":"The stable configuration for a single-atomic-layer-height disconnection on the {101¯1} twin boundary","authors":"Y. Yue ,&nbsp;H.Y. Song ,&nbsp;J.F. Nie","doi":"10.1016/j.jma.2024.07.019","DOIUrl":"10.1016/j.jma.2024.07.019","url":null,"abstract":"<div><div>Single-atomic-layer-height disconnections that connect with I₁ stacking faults are produced on <span><math><mrow><mo>{</mo><mrow><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>1</mn></mrow><mo>}</mo></mrow></math></span> twin boundaries in pure magnesium through transmutation of basal 〈<em>a</em>〉 mixed dislocations across the twin boundaries, and their stabilities are examined using molecular dynamics simulations. The stable configuration for a single-atomic-layer-height disconnection is a pyramidal-basal (PyB) disconnection connecting an I₁ fault associated with a stacking sequence change of AB<u>A</u>CA, or a basal-pyramidal (BPy) disconnection connecting an I₁ fault associated with a stacking sequence change of BA<u>B</u>CB. A stable single-atomic-layer-height disconnection can transform to a less stable single-atomic-layer-height disconnection when its step orientation changes solely. A stable single-atomic-layer-height disconnection can also transform to another stable single-atomic-layer-height disconnection, when the step orientation of the disconnection and the type of the I₁ fault that connects with the disconnection change synchronously, and this process is accompanied with the emission of a Shockley partial dislocation from the twin boundary.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 4868-4876"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143308917","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":"Promoting catalysis in magnesium hydride for solid-state hydrogen storage through manipulating the elements of high entropy oxides","authors":"Li Wang ,&nbsp;Liuting Zhang ,&nbsp;Fuying Wu ,&nbsp;Yiqun Jiang ,&nbsp;Zhendong Yao ,&nbsp;Lixin Chen","doi":"10.1016/j.jma.2024.01.030","DOIUrl":"10.1016/j.jma.2024.01.030","url":null,"abstract":"<div><div>The lattice distortion effect and cocktail effect of high-entropy oxides (HEOs) will dominate the catalytic effect of the materials, in order to study the influence of the constituent elements of HEOs on the lattice distortion effect and cocktail effect, through elemental manipulation of Cr, Cu, and La, high entropy oxides (HEOs) catalyst CrMnFeCoNiO (Cr_1:1), CuMnFeCoNiO (Cu_1:1), and LaMnFeCoNiO (La_1:1) were effectively synthesized by the facile co-precipitation approach. With a size of about 10 nm, Cr_1:1 presented significant modification impacts on enhancing the hydrogen storage capability of MgH₂. Specifically, MgH₂ was able to release hydrogen at 200 °C with the addition of Cr_1:1, MgH₂+10wt% Cr_1:1 showed prompt rate of dehydrogenation which could release 5.56 wt% H₂ in 20 min at 250 °C, and the activation energy of MgH₂ was lowered to 69.77± 3.75 kJ⋅mol⁻¹ by adding Cr_1:1. According to the Chou model fitting, the exceptional kinetic performance of the composite was attributable to a rate-controlling step changed from low-speed surface penetration to high-speed diffusion. Furthermore, MgH₂+10wt% Cr_1:1 was capable of absorbing hydrogen at ambient temperature and the composite could uptake 6 wt% H₂ within 8 min at the temperature of 150 °C. Due to the high entropy effects of HEOs, Cr_1:1 possessed superior stability, which guarantees the robust cycling qualities of MgH₂+10wt% Cr_1:1. Meanwhile, microstructure analysis revealed that the active sites with numerous heterogeneous structures were uniformly dispersed on surfaces, exhibiting superior catalytic effects on improving the hydrogen storage performance of MgH₂.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5038-5050"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143355299","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":"Achieving ultra-high strength and ductility in a rare-earth-free magnesium alloy via precisely controlled secondary hot extrusion process with an extremely low extrusion speed","authors":"Wei Gao ,&nbsp;Xin Wang ,&nbsp;Yingjian Lin ,&nbsp;Xiao Wang ,&nbsp;Debao Liu ,&nbsp;Xiaohao Sun","doi":"10.1016/j.jma.2024.07.015","DOIUrl":"10.1016/j.jma.2024.07.015","url":null,"abstract":"<div><div>Magnesium (Mg) alloys, as the lightest structural metallic materials, hold significant potential for various applications in modern society. However, their limited strength and ductility have restricted their widespread use. Herein, a precisely controlled secondary hot extrusion (SHE) process with extremely low extrusion speed (a cross-head rate of 0.1 mm·min⁻¹) was employed to achieve ultra-fine microstructure with an average grain size of 0.45 µm and uniform precipitation of nano-sized Mn-rich secondary phase in a rare-earth (RE)-free Mg-1.5Ag-0.2Mn-0.1Ca (wt.%) (MACM) alloy. Nano-sized Mn-rich secondary phase with an average particle size of 2.7 nm could inhibit the basal slip and result in the simultaneous activation of multiple slip systems, contributing to excellent ductility. Additionally, substantial elemental segregation occurred at the grain boundaries of the α-Mg phase in the SHEed Mg-Ag-Mn-Ca alloy after tensile deformation, providing significant solute drag pressure and Zener pressure. This phenomenon induces grain boundary segregation strengthening and activates non-basal slip. Consequently, the secondary hot extruded (SHEed) alloy exhibited an ultra-high ultimate tensile strength (UTS) of ∼422 MPa, a yield strength (YS) of ∼362 MPa, and an excellent elongation of 30.0%. Quantitative analysis of strengthening behavior in the SHEed MACM alloys revealed that the primary strengthening mechanism is grain refinement, with consideration given to the influences of Orowan strengthening and work hardening. This study provides a novel approach to synchronously ameliorate the strength and ductility in Mg-based materials for load-bearing applications.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5216-5230"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227778","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":"Biodegradable Mg alloy modified with bioactive exosomes for cardiovascular stent application","authors":"Ya-chen Hou ,&nbsp;Jing-an Li ,&nbsp;Chang Cao ,&nbsp;Chang Su ,&nbsp;Zhen Qin ,&nbsp;Ge Zhang ,&nbsp;Jia-cheng Guo ,&nbsp;Jun-nan Tang ,&nbsp;Jin-ying Zhang ,&nbsp;Shao-kang Guan","doi":"10.1016/j.jma.2023.05.007","DOIUrl":"10.1016/j.jma.2023.05.007","url":null,"abstract":"<div><div>Cardiovascular stent has been widely applied to treat cardiovascular disease (CVD), which is the major disease contribution to mortality in the world wide. Biodegradable magnesium (Mg) alloys are the encouraging materials in cardiovascular stents benefit from absorbability and biocompatibility. While, the ability of degradation is a double-edged sword for manufacture stent, modifying the surface to decrease the excessive degradation rate and promote the surface endothelialization could expand the prospect of the further application. In this work, the biodegradable Mg-Zn-Y-Nd alloy was modified by MgF₂ and dopamine polymer film (PDA) as the corrosion resistance layer and the bonding layer respectively, and then the exosome, a natural nanoparticle contains mRNAs and proteins, was tailored to give the surface better biocompatibility. The electrochemical test and weight loss test reflected the MgF₂-PDA/exosome coating increase the corrosion resistance of the Mg-Zn-Y-Nd alloy. The cytocompatibility data indicated the novel MgF₂-PDA/exosome coating selectively reduced the tumor necrosis factor (TNF-α) expression and ROS release from macrophage, and promoted the α-SMA expression of smooth muscle cells. In addition, the MgF₂-PDA/exosome coating also improved the adhesion, proliferation, CD31 expression and nitric oxide (NO) release of vascular endothelial cells (ECs), all of which contribute to the surface endothelialization. And the mechanism experiments showed the exosome released from the coating uptake by the ECs and assemble around the lysosome and mitochondria, and the released rate of the exosome on the coating is around 5 to 7 days, indicating excellent multi-functions of MgF₂-PDA/exosome coating in cardiovascular stent.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 4988-5004"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42771382","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":"Enhancing the room-temperature plasticity of magnesium alloys: Mechanisms and strategies","authors":"Lu Zhang ,&nbsp;Qian Yuan ,&nbsp;Jun Tan ,&nbsp;Quan Dong ,&nbsp;Hao Lv ,&nbsp;Fanglei Wang ,&nbsp;Aitao Tang ,&nbsp;Jürgen Eckert ,&nbsp;Fusheng Pan","doi":"10.1016/j.jma.2024.12.008","DOIUrl":"10.1016/j.jma.2024.12.008","url":null,"abstract":"<div><div>The room-temperature plasticity of magnesium and its alloys is limited primarily by their hexagonal close-packed (HCP) crystal structure, which restricts the number of active slip systems available at room temperature. This limitation hinders their broader application in various industries. Consequently, enhancing the room-temperature plasticity of magnesium alloys is essential for expanding their usage. This review provides a comprehensive overview of the underlying mechanisms and strategies for enhancing room-temperature plasticity in magnesium alloys. The first section emphasizes the importance of improving plasticity in these materials. The second section uses bibliometric analysis to identify key research trends and emerging hotspots in the field. The third section explores the deformation mechanisms and factors that influence room-temperature plasticity. The fourth section discusses various methods for enhancing plasticity. The fifth section focuses on achieving a balance between strength and plasticity. Finally, the review concludes with insights into future prospects and challenges, offering guidance for the development of high-plasticity magnesium alloys and serving as a resource for both research and industrial applications.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 4741-4767"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848858","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":"Progress and prospects in magnesium alloy scrap recycling","authors":"Lipeng Wang ,&nbsp;Dong Liang ,&nbsp;Rong Yu ,&nbsp;Meng Wang ,&nbsp;Yang Tian ,&nbsp;Tingzhuang Ma ,&nbsp;Bin Yang ,&nbsp;Baoqiang Xu ,&nbsp;Wenlong Jiang","doi":"10.1016/j.jma.2024.11.031","DOIUrl":"10.1016/j.jma.2024.11.031","url":null,"abstract":"<div><div>Magnesium (Mg) alloy is widely used in aerospace and automotive industries as an excellent lightweight metal material to reduce carbon emissions. The expansion of Mg alloy applications and the increasing demands for these materials have significantly facilitated the generation of Mg alloy scrap. The recycling of Mg resources is crucial for promoting both environmental sustainability and economic viability. However, current recycling effect is unsatisfactory. Therefore, this paper provides a comprehensive review of the entire recycling process, including scrap classification, separation and sorting, pre-treatment, and recycling. This paper explores the generation of Mg alloy scrap and its reincorporation into industrial products. This review outlines various Mg scrap recycling technologies based on different phase states. These include liquid-state recycling (such as flux refining, impurity removal additives, fluxless refining, compound treatment, and direct remelting), solid-state recycling (involving hot extrusion, equal-channel angular pressing (ECAP), friction stir extrusion (FSE), and spark plasma sintering (SPS)), vapor-state recycling (comprising vacuum distillation and sublimation), electrochemical recycling (solid oxide membrane (SOM) electrolysis, RE-12™ electrorefining, and non-aqueous solution electrorefining), and Mg secondary alloy development. The advantages and existing challenges associated with each method are compared and discussed, and the current obstacles to the future recycling of complex scrap are examined.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 4828-4867"},"PeriodicalIF":15.8,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874670","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}