Journal of Magnesium and Alloys最新文献

{"title":"Kinetic simulation of early-stage precipitation behavior in Mg-RE binary alloys during aging process","authors":"Hao Jiang ,&nbsp;Shao-Xiang Li ,&nbsp;Long-Long Hao ,&nbsp;Wei-Jian Li ,&nbsp;Zhi-Qiang Han ,&nbsp;Liang-Xing Lv ,&nbsp;Liang Zhen","doi":"10.1016/j.jma.2023.07.003","DOIUrl":"10.1016/j.jma.2023.07.003","url":null,"abstract":"<div><div>The precipitation behavior of magnesium-rare earth (Mg-RE) alloys plays a crucial role for their properties. However, the precipitation happens at small-length and long-time scales, making it challenging to be analyzed by state-of-the-art experimental techniques. Here, we combine the advantages of both molecular dynamic force fields on describing atom interactions and Monte Carlo method on describing diffusive events to develop an embedded atom method (EAM) potential based kinetic Monte Carlo (KMC) model. Using the proposed model, we simulated the formation and evolution of Y clusters in Mg-Y alloy formed by the vacancy mechanism, and rationalize the simulation results using aberration-corrected scanning transmission electron microscopy characterize. We conducted a systematic analysis of the atomic structure, the evolution kinetics and path of the Y cluster by tracing Y atoms and comparing with density function theory (DFT) calculations. Our work reveals that, all solute columns in a same cluster trend to grow along the [0001]_Mg direction synchronously. The method presented is not only used for the Mg-Y alloy but also other Mg-RE alloys such as Mg-Gd as illustrated in the last part of the paper.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 3","pages":"Pages 1078-1087"},"PeriodicalIF":15.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54594133","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":"Crystalline@amorphous core-shell structure of WO3@WO3-xSx established via doping strategy for enhancing magnesium ions storage performance","authors":"Shiqi Ding ,&nbsp;Yuxin Tian ,&nbsp;Jiankang Chen ,&nbsp;Guofeng Wang ,&nbsp;Bing Sun ,&nbsp;He Lv ,&nbsp;Lei Wang ,&nbsp;Guicun Li ,&nbsp;Alan Meng ,&nbsp;Zhenjiang Li","doi":"10.1016/j.jma.2024.04.029","DOIUrl":"10.1016/j.jma.2024.04.029","url":null,"abstract":"<div><div>Designing cathode possessing crystalline@amorphous core-shell structure with both active core and shell is a meaningful work for resolving the low specific capacity, unstable cycling performance and sluggish reaction kinetics issues of rechargeable magnesium batteries (RMBs) by providing more active sites as well as releasing inner stress during cycling. Herein, WO₃@WO<em>_3-x</em>S<em>_x</em> owning crystalline@amorphous core-shell structure containing both active core and active shell is constructed successfully by introducing S into metastable WO₃ structure under temperature field applying. In such structure, amorphous shell would provide continuous Mg²⁺ diffusion channels due to its isotropy property for most Mg²⁺ migrating rapidly to interface and then adsorb at ions reservoir formed by interfacial electric field for increasing specific capacity. It also makes security for stable structure of WO₃@WO<em>_3-x</em>S<em>_x</em> by alleviating volume expansion of crystalline core WO₃ during cycling to prolong cycling life. Additionally, “softer” ions S²⁻ would weaken interaction between hard acid Mg²⁺ and ionic lattice to enhance Mg²⁺ storage kinetics. Therefore, WO₃@WO<em>_3-x</em>S<em>_x</em> delivers the superior cycling performance (1000 cycles with 83.3%), rate capability (88.5 mAh g⁻¹ at 1000 mA g⁻¹) and specific capacity (about 150 mAh g⁻¹ at 50 mA g⁻¹), which is near 2 times higher than that of WO₃. It is believed that the crystalline@amorphous core-shell structure with both active core and shell designing via doping strategy is enlightening for the development of high-performance RMBs, and such design can be extended to other energy storage devices for better electrochemical performance.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 3","pages":"Pages 1353-1363"},"PeriodicalIF":15.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141130199","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":"Nanoscale analysis of interfacial structure and its effects on mechanical properties of Mg/Al laminate reinforced by TiB2 particles","authors":"Lihua Qian,&nbsp;Liang Chen,&nbsp;Biaohua Que,&nbsp;Kaiqiang Shen,&nbsp;Guoqun Zhao,&nbsp;Cunsheng Zhang","doi":"10.1016/j.jma.2024.03.021","DOIUrl":"10.1016/j.jma.2024.03.021","url":null,"abstract":"<div><div>Fabricating Mg/Al laminate is an effective strategy to circumvent the inherently low formability and poor corrosion resistance of Mg alloys. Here, Mg/Al laminate with good bonding quality and mechanical properties was successfully fabricated via porthole die co-extrusion process using ZK60 Mg and TiB₂/6061Al composite as constituted layers. Integrating the results from microstructural characterization and mechanical testing, the effects of extrusion temperature on microstructure, interfacial structure, element diffusion, and mechanical properties were investigated. The results show that Mg/Al laminate achieves a sound welding quality by mechanical bonding and diffusion bonding. The obvious intermetallic compounds (β and γ) layer forms at Mg/Al interface, and its thickness increases to 8.3 μm as the extrusion temperature reaches 400 °C. High extrusion temperature promotes the dynamic recrystallization and grain growth of Mg and Al layers, while the dislocation density decreases. β/γ interface shows a coherent feature, while γ/Mg interface is semi-coherent with a locally ordered transition zone of 4.5 nm. The rich Mg and Cr layers are found at TiB₂/6061 interface, which is conducive to improving the bonding quality. When the extrusion temperature is 370 °C, the thickness of diffusion layer is around 5.0 μm, and the bonding strength reaches 18.68 MPa, resulting in the best comprehensive mechanical properties. This work provides a new direction for the development of Mg/Al laminate with excellent strength and ductility.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 3","pages":"Pages 1310-1324"},"PeriodicalIF":15.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140778246","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":"Catalytic effect of carbon-supported NiCoFeCuMg high-entropy alloy nanocatalysts on hydrogen storage properties of MgH2","authors":"Yafei Liu,&nbsp;Mengyuan Yue,&nbsp;Yusang Guo,&nbsp;Yaru Jiang,&nbsp;Yu Sun,&nbsp;Lizhuang Feng,&nbsp;Yijing Wang","doi":"10.1016/j.jma.2024.04.031","DOIUrl":"10.1016/j.jma.2024.04.031","url":null,"abstract":"<div><div>High entropy alloy (HEA) based materials have been extensively investigated as viable catalysts in hydrogen storage for their unique properties. Herein, we demonstrate a relatively mild synthesis strategy for constructing carbon-supported by NiCoFeCuMg HEA (NiCoFeCuMg@C) nanocatalysts by utilizing polymetallic metal-organic frameworks (MOFs) as precursors. The incorporation of prepared catalysts into MgH₂ greatly improved the hydrogen storage performance: the MgH₂+NiCoFeCuMg@C composite can rapidly desorb 6.01 wt% H₂ at 325 °C, and the initial dehydrogenation temperature decreased to 167.2 °C, nearly 163.8 °C lower than that of the pure MgH₂. Besides, the composite exhibits a fairly stable reversible capacity with 97% capacity retention after 20 cycles. Most importantly, <em>ex</em>-situ structural characterization reveals that the synergistic effects of the “hydrogen pump” role of Mg₂Ni(Cu)/Mg₂Ni(Cu)H₄ and “hydrogen gateway” role of Co₃Fe₇, as well as the excellent dispersion function of carbon material, contribute to the outstanding hydrogen storage properties of the MgH₂+NiCoFeCuMg@C composite. This study provides valuable insights into the performance improvement of carbon-supported HEA catalysts in modification of MgH₂.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 3","pages":"Pages 1232-1242"},"PeriodicalIF":15.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141145455","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":"Very high cycle fatigue resistance improvement of Mg-Gd-Zn-Zr alloy by introducing curved long-period stacking ordered lamellae","authors":"Min Zhan ,&nbsp;Xinglin Yang ,&nbsp;Shoucheng Shi ,&nbsp;Yao Chen ,&nbsp;Lang Li ,&nbsp;Bing Xue ,&nbsp;Yongbo Li ,&nbsp;Wanshuang Yi ,&nbsp;Qingyuan Wang ,&nbsp;Chao He","doi":"10.1016/j.jma.2024.04.025","DOIUrl":"10.1016/j.jma.2024.04.025","url":null,"abstract":"<div><div>Magnesium alloys with long-period stacking ordered (LPSO) structures are known for their impressive static mechanical strength, but the consistent occurrence of slip-cracking along the LPSO lamellae, which do not effectively impede the movement of basal dislocations, has prompted concerns about their very high cycle fatigue (VHCF) performance. In this study, an extruded Mg-Gd-Zn-Zr alloy was developed, showcasing exceptional VHCF resistance due to its bimodal structure comprising fine grains and coarse grains consisting of curved LPSO lamellae. The investigation on the crack initiation mechanism revealed that slip-induced cracking predominantly occurs in fine-grained regions rather than in the interior of coarse grains. The extrusion process aligns the basal planes of most coarse grains parallel to the axial direction, and the presence of curved LPSO lamellae acts as barriers to the movement of basal dislocations, thereby effectively increasing the threshold for slip-cracking along the basal plane. Consequently, fatigue damage manifests in the form of slip bands and micro-cracks within the interior of fine grains, ultimately resulting in fatigue crack initiation, propagation and final fracture.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 3","pages":"Pages 1218-1231"},"PeriodicalIF":15.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141135551","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":"Research on the degradation behaviors of biomedical Mg-2 wt.% Zn alloy under a biliary environment in vitro and in vivo","authors":"Hongzhou Peng ,&nbsp;Zijun Gong ,&nbsp;Rui Zan ,&nbsp;Wei Wang ,&nbsp;Han Yu ,&nbsp;Yu Sun ,&nbsp;Chaolin Ma ,&nbsp;Wenhui Wang ,&nbsp;Tao Suo ,&nbsp;Xiaonong Zhang","doi":"10.1016/j.jma.2022.10.019","DOIUrl":"10.1016/j.jma.2022.10.019","url":null,"abstract":"<div><div>Magnesium and its alloys have been initially applied to biliary tract surgery. Currently, few reports on the degradation behavior of magnesium in the bile environment were investigated. Thus, in-depth research on the degradation behavior of Mg and its alloys in bile is beneficial to the further application of Mg in biliary tract surgery. In this study, the degradation behavior of HP-Mg (HPM) and Mg-2 wt.%Zn (MZ2) alloys in human bile and Hanks balanced salt solution (HBSS) was systematically investigated. The MZ2 alloy biliary stent was implanted into the porcine common bile duct to study the degradation behavior of MZ2 alloy <em>in vivo</em>, and to verify the biosafety of MZ2 alloys degradation in the bile duct. It was found that the degradation product layer formed by MZ2 alloys in bile consisted of three layers, including organic matter (fatty acid, etc.), calcium and magnesium phosphate, and Mg(OH)₂/MgO, respectively from the outside to the inside. The multi-layered degradation product layer slowed down the corrosion of the Mg matrix. During the 21 days of stent implantation, the degradation rate of the MZ2 stent was about 0.83 mm/y, there was no blockage and stenosis of the tube diameter, and the bile drainage function was normal.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 3","pages":"Pages 1066-1077"},"PeriodicalIF":15.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44831214","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":"Comprehensive study on corrosion, wear and fatigue performance of low-porosity PEO coating on Mg alloy","authors":"Xiaopeng Lu, Yufei Xie, Xinyu Zhang, Jirui Ma, Lingxiong Sun, Quantong Jiang, Wojciech Simka, Dan Zhang, Baorong Hou, Fuhui Wang","doi":"10.1016/j.jma.2025.01.023","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.023","url":null,"abstract":"Novel neutral electrolytes were designed to substantially decrease porosity and increase barrier property of plasma electrolytic oxidation (PEO) coating on AM50 Mg surface. Presence of additives was effective in tuning coating microstructure and composition, leading to significantly enhanced corrosion and wear properties. 50 % improvement in fatigue limit was detected for the optimized coating compared to conventional PEO coating. The low-porosity coating remained uncorroded after performing salt spray test for 1 month, and exposure 1 year in harsh South China Sea environment. This can be new strategy to evaluate coating lifespan and promote wide range of applications for Mg alloy.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"11 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143518090","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":"Improvement in electromagnetic shielding effectiveness and mechanical properties of ultrafine Mg98.5Zn0.5Y alloy via friction stir processing","authors":"Guangyu Zhang, Jialiang Dong, Ziyi Li, Zhongxue Feng, Jun Tan, Xianhua Chen, Jianhong Yi, Fusheng Pan","doi":"10.1016/j.jma.2025.02.011","DOIUrl":"https://doi.org/10.1016/j.jma.2025.02.011","url":null,"abstract":"A novel Mg_98.5Zn_0.5Y alloy sheet with ultrafine grains and exceptional electromagnetic shielding performance has been fabricated using friction stir processing (FSP). This study investigates the impact of FSP on the microstructure, mechanical properties, and electromagnetic interference (EMI) shielding effectiveness (SE) of the alloy, specifically across three distinct layers within the stir zone (SZ): Top, Middle, and Bottom. The results reveal that the Mg₁₂YZn long-period stacking ordered (LPSO) phase is the predominant structure, undergoing significant grain refinement. The grain size is drastically reduced from 1.5 mm in the as-cast state to 12.6 µm, 10.0 µm, and 7.1 µm in the Top, Middle, and Bottom, respectively. This grain refinement and fragmentation of the LPSO phase into nanoscale particles result in a substantial enhancement of mechanical properties. The ultimate tensile strength (UTS) reached 358.2 MPa with an elongation (EL) of 15.1 %, reflecting a 344 % increase in strength and a 733 % improvement in ductility compared to the as-cast material. Simultaneously, the EMI SE was maintained between 70 and 110.4 dB over a broad frequency range (30–4500 MHz). Despite the nanoscale LPSO particles contributing minimally to EMI shielding, the lamellar LPSO structure demonstrated excellent performance through multiple electromagnetic wave reflections within the matrix. These findings underscore the dual benefits of FSP in improving both mechanical strength and electromagnetic shielding effectiveness, positioning this Mg_98.5Zn_0.5Y alloy for advanced applications in the electronics and telecommunications sectors.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"84 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526539","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":"Revealing twin-induced deformation mechanisms of AZ31 Mg alloy sheet during warm deep drawing","authors":"Lei Tian, Lifei Wang, Xinwei Fu, Kunkun Deng, Xiao Wang, Liuwei Zheng, Hongxia Wang, Qiang Zhang, Kwang Seon Shin","doi":"10.1016/j.jma.2025.02.002","DOIUrl":"https://doi.org/10.1016/j.jma.2025.02.002","url":null,"abstract":"In this work, the {10–12} tensile twins are introduced to improve the drawability of the AZ31 Mg alloy sheet. Concretely, the drawing depth is increased by 32 % compared with the as-received sheet at 200 °C. This is because {10–12} tensile twins promote the occurrences of many deformation mechanisms during warm deep drawing, such as slips, detwinning, dynamic recrystallization (DRX) behaviors, etc. Further, based on the different stress states during deep drawing, these mechanisms and their competition relationships, as well as texture evolutions, are systematically studied. Combined with critical resolved shear stress (CRSS) and microstructure evolution, the global Schmid factor (GSF) obtained by quantizing stress states by stress tensor (σ) can accurately predict the activation trend of deformation mechanisms. It is found that the stress states have a reverse influence on the activation trend of the {10–12} twinning and detwinning. The change of stress states affects the competitive relationships between detwinning and DRX, and then affects the process and degree of DRX. The {10–12} tensile twins and large plane strain promote the activation of prismatic slips, and the larger plane strain also deflected the {10–12} twinning lattice. The {10–12} tensile twins and their induced deformation mechanisms can prominently weaken the basal texture and improve the drawability.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"37 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143518092","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":"The threat of hemorrhage from pelvic fractures: Clinicians seeking new solutions based on biomedical Mg implant","authors":"Qinghui Han, Xiaonong Zhang, Wenhui Wang, Kaiyang Wang, Tao Wang","doi":"10.1016/j.jma.2025.02.007","DOIUrl":"https://doi.org/10.1016/j.jma.2025.02.007","url":null,"abstract":"Biodegradable magnesium (Mg) materials offer significant advantages in trauma care due to their degradable nature and superior mechanical properties. This study reports the first successful use of degradable Mg clips in damage control surgery for pelvic fractures, addressing challenges associated with severe hemorrhage and high mortality rates (30–70 %). A 57-year-old male patient with pelvic fractures and traumatic shock underwent open reduction and internal fixation with Mg clips. At a six-month follow-up, imaging confirmed fracture healing, clip degradation, and no signs of rebleeding or infection, highlighting their effectiveness in precise hemorrhage control. Unlike traditional titanium clips, Mg clips degrade over time, eliminating the need for removal and reducing infection risks. This innovative approach combines Mg clips with conventional gauze packing, offering a more effective and safer alternative for managing pelvic trauma. Future large-scale clinical trials are necessary to validate these findings and establish Mg clips as a global standard for pelvic fracture treatment. Their portability and functionality hold promise for advancing emergency trauma care.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"85 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143518094","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}