Journal of Magnesium and Alloys最新文献

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Positive-negative shear asymmetry and anisotropy of a textured rolled plate of AZ31B Mg alloy under simple shear
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-02-04 DOI: 10.1016/j.jma.2025.01.009
Jiaxin Liu, Fulin Wang, Fenghua Wang, Shuai Dong, Jian Zeng, Li Jin, Jie Dong
{"title":"Positive-negative shear asymmetry and anisotropy of a textured rolled plate of AZ31B Mg alloy under simple shear","authors":"Jiaxin Liu, Fulin Wang, Fenghua Wang, Shuai Dong, Jian Zeng, Li Jin, Jie Dong","doi":"10.1016/j.jma.2025.01.009","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.009","url":null,"abstract":"Mg alloy often undergoes shear deformation during industrial processing. While its anisotropy and tension-compression asymmetry have been thoroughly studied under uniaxial loading, the understanding for shear loading is still lacking. This study employed a rolled AZ31B plate with typical basal texture to investigate the shear behaviors. Positive and negative simple shear experiments were performed at different angles in the transverse plane, whereby the visco-plastic self-consistent model was calibrated to reveal the deformation mechanisms and predict the mechanical responses at various orientations. Positive-negative shear asymmetry is present because extension twinning preferentially operates in one shear direction but is suppressed in the opposite direction. Simple shear induces multiple twin variants, thus impedes twin growth and slows the consumption of matrix, as compared to in-plane compression. For slip dominated simple shear, the interaction between loading-induced rigid body rotation and slip-induced crystal rotation produces distinct hardening behaviors, namely orthogonally asymmetric mechanical responses at complementary loading angles, which is largely absent in uniaxial loading. Finally, simulation results verify that positive-negative shear asymmetry appears only when the deviatoric normal stress on the sheet plane is non-zero. Positive-negative shear asymmetry persists except for the conditions of shear plane parallel to sheet plane, or shear direction parallel or perpendicular to rolling direction.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"25 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083121","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}
引用次数: 0
Effect of different metal-reinforcement phases on PEO discharge and coating growth behavior of AZ91 Mg-matrix composites
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-02-04 DOI: 10.1016/j.jma.2025.01.008
Jinchao Jiao, Yongrui Gu, Xiaoyun Ding, Jin Zhang, Yong Lian, Pengfei Gao, Xiaohui Zhang, Shengli Han, Kaihong Zheng, Fusheng Pan
{"title":"Effect of different metal-reinforcement phases on PEO discharge and coating growth behavior of AZ91 Mg-matrix composites","authors":"Jinchao Jiao, Yongrui Gu, Xiaoyun Ding, Jin Zhang, Yong Lian, Pengfei Gao, Xiaohui Zhang, Shengli Han, Kaihong Zheng, Fusheng Pan","doi":"10.1016/j.jma.2025.01.008","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.008","url":null,"abstract":"The strength and ductility of Mg alloys were improved through the introduction of metallic reinforcement phases. How the effect of different metal-reinforcement phases on the PEO discharge and coating growth behavior of Mg-matrix composites remains unclear. In this work, the influence of three metal-reinforcement phases (Nb, Mn, and Cu) on voltage evolution, coating morphology, coating phase composition, and corrosion resistance was investigated. The results indicate that Nb-reinforcement undergoes continuous spark discharges, resulting in the formation of a “volcano-like” localized morphology. In contrast, Mn and Cu-reinforcements do not directly participate in PEO discharges; instead, their oxidation products form “nodule-like” protrusions that limit the voltage rise rate. These behaviors are attributed to differences in the properties of the oxidation products of metal reinforcements and the Mg matrix, such as stability, Pilling–Bedworth ratio (PBR), band gap, dielectric constant, and conductivity. These characteristics influence the electrical structure of the PEO coating, thereby altering the PEO discharge and coating growth behavior of the composites. Finally, two models are proposed to describe the PEO discharge mechanisms in the two types of metal-reinforced AZ91-based composites.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"77 2 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083122","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}
引用次数: 0
An overview of the recent developments in biodegradable Mg-Zn alloy
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-02-03 DOI: 10.1016/j.jma.2025.01.011
Manas Ranjan Sahu, Akiko Yamamoto
{"title":"An overview of the recent developments in biodegradable Mg-Zn alloy","authors":"Manas Ranjan Sahu, Akiko Yamamoto","doi":"10.1016/j.jma.2025.01.011","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.011","url":null,"abstract":"The increasing interest in Mg-Zn binary alloys as temporary implant materials is attributed to their outstanding biocompatibility, biodegradability, and favourable mechanical properties. However, their application is constrained by high degradation rates in the physiological environment, resulting in the release of hydrogen gas and a rapid decline in mechanical properties. Additionally, the material's biocompatibility is contingent upon its degradability. Researchers have demonstrated that addressing these issues is possible through strategies such as controlling Zn content, employing thermo-mechanical processing to achieve suitable microstructures, and applying surface coatings. This manuscript provides a comprehensive review of published literature on Mg-Zn alloys, exploring the challenges and outlining future research directions in this field.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"168 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077160","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}
引用次数: 0
Potential of strain-integrated gas infusion (SIGI) casting on post-heat treatment kinetics of AZ91 magnesium alloy
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-02-03 DOI: 10.1016/j.jma.2025.01.016
V. Tiwari, S.K. Panigrahi
{"title":"Potential of strain-integrated gas infusion (SIGI) casting on post-heat treatment kinetics of AZ91 magnesium alloy","authors":"V. Tiwari, S.K. Panigrahi","doi":"10.1016/j.jma.2025.01.016","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.016","url":null,"abstract":"Heat treatments play a crucial role in enhancing the mechanical properties of AZ91 Mg alloy by dissolving coarse phases during solution treatment and promoting precipitation during aging. However, non-uniform microstructures and coarse secondary phases in conventional casting methods hinder the effectiveness of these treatments, leading to reduced ductility, inconsistent properties, and prolonged durations. To overcome these challenges, this study introduces the Strain Integrated Gas-Infusion (SIGI) casting process that integrates strain and gas infusion in the semi-solid state. The impact of the SIGI process on the solution treatment and aging kinetics of AZ91 Mg alloy is explored. The SIGI process refines α-Mg and β-Mg<sub>17</sub>Al<sub>12</sub> phases, significantly enhancing mechanical properties. Experimental and quantitative analyses reveal that the SIGI process accelerates solute atom dissolution, reducing solution treatment times by half, and promotes faster nucleation and growth of precipitates during aging, shortening aging times by one-third. These improvements result in substantial gains in ultimate tensile strength (∼40–50 %) and ductility (∼20–30 %) after age hardening compared to conventional casting. The mechanisms driving these changes, including enhanced nucleation rates, reduced diffusion distances, and microstructural refinement, are discussed. These findings demonstrate the potential of the SIGI casting process to advance magnesium alloy performance for engineering applications.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"35 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077168","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}
引用次数: 0
Vanadium induces Ni-Co MOF formation from a NiCo LDH to catalytically enhance the MgH2 hydrogen storage performance
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-02-03 DOI: 10.1016/j.jma.2025.01.012
Zexuan Yang, Yazhou Wang, Xia Lin, Yongjin Zou, Cuili Xiang, Fen Xu, Lixian Sun, Yong Shen Chua
{"title":"Vanadium induces Ni-Co MOF formation from a NiCo LDH to catalytically enhance the MgH2 hydrogen storage performance","authors":"Zexuan Yang, Yazhou Wang, Xia Lin, Yongjin Zou, Cuili Xiang, Fen Xu, Lixian Sun, Yong Shen Chua","doi":"10.1016/j.jma.2025.01.012","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.012","url":null,"abstract":"Magnesium-based hydrogen storage materials, such as MgH<sub>2</sub>, have attracted considerable attention because of its superior hydrogen storage capacities, inexpensive, and excellent reversibility. However, their high thermodynamic stabilities and slow kinetics lead to relatively high desorption temperatures, which severely limit the wide application of MgH<sub>2</sub>. In this study, the inclusion of vanadium induced the formation Ni-Co metal–organic frameworks (MOF) from a NiCo layered double hydroxide (LDH), thereby increasing the number of defects and vacancies, and improving the hydrogen storage properties of MgH<sub>2</sub>. The synthesized NiCo-MOF/V-O-doped MgH<sub>2</sub> system demonstrates excellent hydrogen storage capacity. More specifically, 5 wt.% of H<sub>2</sub> was released over 20 min at a relatively low dehydrogenation temperature of 250 °C, and almost complete dehydrogenation was achieved at 300 °C for 5 min. In addition, at 125 °C, the hydrogen storage material absorbed 5.5 wt.% H<sub>2</sub> in 10 min. Furthermore, the activation energy of dehydrogenation was determined to be 69.588 ± 6.302 kJ ·mol<sup>−1</sup> which is significantly lower than that of the ball-milled MgH<sub>2</sub> (i.e., 118.649 ± 2.825 kJ ·mol<sup>−1</sup>). It was therefore inferred that during dehydrogenation process, a Mg<sub>2</sub>Ni/Mg<sub>2</sub>NiH<sub>4</sub> hydrogen pump is formed by Ni, while the V-H and Co-H bonds formed by Co and V during the reaction act synergistically to catalyze the absorption and desorption of hydrogen, thereby increasing the hydrogen storage capacity of MgH<sub>2</sub>. These experiments provide new perspectives on the commercial application of MgH<sub>2</sub>.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"27 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077169","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}
引用次数: 0
Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-02-03 DOI: 10.1016/j.jma.2025.01.006
Wei-li Cheng, Xu-bang Hao, Jin-hui Wang, Hui Yu, Li-fei Wang, Ze-qin Cui, Cheng Chang
{"title":"Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery","authors":"Wei-li Cheng, Xu-bang Hao, Jin-hui Wang, Hui Yu, Li-fei Wang, Ze-qin Cui, Cheng Chang","doi":"10.1016/j.jma.2025.01.006","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.006","url":null,"abstract":"The dominated contradiction in optimizing the performance of magnesium-air battery anode lies in the difficulty of achieving a good balance between activation and passivation during discharge process. To further reconcile this contradiction, two Mg-0.1Sc-0.1Y-0.1Ag anodes with different residual strain distribution through extrusion with/without annealing are fabricated. The results indicate that annealing can significantly lessen the “pseudo-anode” regions, thereby changing the dissolution mode of the matrix and achieving an effective dissolution during discharge. Additionally, p-type semiconductor characteristic of discharge product film could suppress the self-corrosion reaction without reducing the polarization of anode. The magnesium-air battery utilizing annealed Mg-0.1Sc-0.1Y-0.1Ag as anode achieves a synergistic improvement in specific capacity (1388.89 mA h g<sup>-1</sup>) and energy density (1960.42 mW h g<sup>-1</sup>). This anode modification method accelerates the advancement of high efficiency and long lifespan magnesium-air batteries, offering renewable and cost-effective energy solutions for electronics and emergency equipment.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"30 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077170","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}
引用次数: 0
Recent advancements in the design of micro/nanostructured superhydrophobic surfaces on magnesium alloys
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-01-31 DOI: 10.1016/j.jma.2025.01.013
Sihui Ouyang, Fengyi Wang, Jia She, Liying Qiao, Ao Fu, Xianhua Chen, Fusheng Pan
{"title":"Recent advancements in the design of micro/nanostructured superhydrophobic surfaces on magnesium alloys","authors":"Sihui Ouyang, Fengyi Wang, Jia She, Liying Qiao, Ao Fu, Xianhua Chen, Fusheng Pan","doi":"10.1016/j.jma.2025.01.013","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.013","url":null,"abstract":"As one of the lightest engineering materials, magnesium (Mg) alloy possesses excellent mechanical performance, meeting the needs of versatile engineering fields and holding the potential to address cutting-edge issues in aerospace, electronics, biomedicine. The design of superhydrophobic (SHB) surfaces with micro and nanostructures can endow Mg alloys with multiple functionalities, such as self-cleaning, self-healing, antibacterial, and corrosion resistance. Over the past decade, researchers have drawn inspiration from nature to implement biomimetic design principles, resulting in the rapid development of micro/nanostructured SHB surfaces on Mg alloys, which hold great promise for biomedical applications. This review comprehensively introduces the biomimetic design principles of micro/nanostructured SHB surfaces on Mg alloys, discusses the challenges along with advantages and disadvantages of current preparation methods, and explores the future perspectives for preparing these SHB surfaces, providing strategies to enhance their performance in biomedical applications.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"60 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072176","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}
引用次数: 0
Diabolical ironclad beetle elytra-inspired flexible WE43 magnesium endovascular stent structures and their biomechanical potential
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-01-31 DOI: 10.1016/j.jma.2025.01.017
Il Won Suh, Jinwoo Kim, Sieb Chanchamnan, Se Rim Jang, Esensil Man Hia, Chan Hee Park, Cheol Sang Kim
{"title":"Diabolical ironclad beetle elytra-inspired flexible WE43 magnesium endovascular stent structures and their biomechanical potential","authors":"Il Won Suh, Jinwoo Kim, Sieb Chanchamnan, Se Rim Jang, Esensil Man Hia, Chan Hee Park, Cheol Sang Kim","doi":"10.1016/j.jma.2025.01.017","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.017","url":null,"abstract":"Nature-inspired designs have increasingly influenced biomedical engineering by providing superior biomechanical performance and structural stability. In this study, the diabolical ironclad beetle elytra structure was applied to stent strut designs and thoroughly evaluated through various computational simulations to assess their potential to enhance the mechanical performance of WE43 magnesium alloy stents. Connected elliptical structures with a vertical-to-horizontal length ratio of 1:1.8 were incorporated in varying numbers and then compared to conventional laser-cut stents using 3-point bending, crush, crimping, and expansion tests, internal carotid artery insertion simulations, and computational fluid dynamics analyses. The results demonstrated that the biomimetic stents exhibited significantly improved stress distribution and reduced applied stress while maintaining hemodynamic stability. Computational fluid dynamics simulations further confirmed that the biomimetic could reduce wall shear stress and improve blood flow, thereby potentially minimizing the risk of restenosis and thrombosis. These findings suggest that diabolical ironclad beetle-inspired stent structures may offer enhanced biomechanical performance and clinical safety in magnesium-based endovascular interventions.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"147 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072177","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}
引用次数: 0
A comprehensive review on Mg-based materials as filler in mixed matrix membranes for CO2 separation
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-01-31 DOI: 10.1016/j.jma.2025.01.018
Payam Veisi, Alireza Askari, Arash Fattah-alhosseini
{"title":"A comprehensive review on Mg-based materials as filler in mixed matrix membranes for CO2 separation","authors":"Payam Veisi, Alireza Askari, Arash Fattah-alhosseini","doi":"10.1016/j.jma.2025.01.018","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.018","url":null,"abstract":"The crisis of excessive increase in CO<sub>2</sub> emissions has quickly become a serious issue and requires low-cost and bio-compatible solutions. The employee of membrane technology for CO<sub>2</sub> gas separation has garnered significant interest among researchers. However, this method encounters challenges related to selectivity and permeability. Therefore, modifying and reinforcing the polymer membranes to improve gas separation performance seems essential. Among the various methods for polymer membrane modification, modification with magnesium-based fillers to prepare a mixed matrix membrane (MMM) is considered an efficient method. Owing to magnesium metal's low weight, low density, high strength, and good selectivity, magnesium-based materials (Mg-based materials) have more porosity, higher available surface area, more adsorption sites, lighter weight, and more gas absorption tendency than other fillers, which makes them an attractive choice for the preparation of gas separation MMMs. This research deals with the introduction of Mg-based materials, various methods of synthesis of Mg-based materials, different methods of introducing Mg-based materials into the membrane matrix, and their effect on the performance of MMMs in CO<sub>2</sub> gas separation applications. Therefore, this review can provide researchers with light horizons in using the high potential of Mg-based materials as efficient fillers in MMMs to achieve excellent permeability and selectivity and generally improve their performance in CO<sub>2</sub> gas separation applications.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"37 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072179","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}
引用次数: 0
Interpretable machine learning excavates a low-alloyed magnesium alloy with strength-ductility synergy based on data augmentation and reconstruction
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-01-31 DOI: 10.1016/j.jma.2025.01.003
Qinghang Wang, Xu Qin, Shouxin Xia, Li Wang, Weiqi Wang, Weiying Huang, Yan Song, Weineng Tang, Daolun Chen
{"title":"Interpretable machine learning excavates a low-alloyed magnesium alloy with strength-ductility synergy based on data augmentation and reconstruction","authors":"Qinghang Wang, Xu Qin, Shouxin Xia, Li Wang, Weiqi Wang, Weiying Huang, Yan Song, Weineng Tang, Daolun Chen","doi":"10.1016/j.jma.2025.01.003","DOIUrl":"https://doi.org/10.1016/j.jma.2025.01.003","url":null,"abstract":"The application of machine learning in alloy design is increasingly widespread, yet traditional models still face challenges when dealing with limited datasets and complex nonlinear relationships. This work proposes an interpretable machine learning method based on data augmentation and reconstruction, excavating high-performance low-alloyed magnesium (Mg) alloys. The data augmentation technique expands the original dataset through Gaussian noise. The data reconstruction method reorganizes and transforms the original data to extract more representative features, significantly improving the model's generalization ability and prediction accuracy, with a coefficient of determination (R<sup>2</sup>) of 95.9 % for the ultimate tensile strength (UTS) model and a R<sup>2</sup> of 95.3 % for the elongation-to-failure (EL) model. The correlation coefficient assisted screening (CCAS) method is proposed to filter low-alloyed target alloys. A new Mg-2.2Mn-0.4Zn-0.2Al-0.2Ca (MZAX2000, wt%) alloy is designed and extruded into bar at given processing parameters, achieving room-temperature strength-ductility synergy showing an excellent UTS of 395 MPa and a high EL of 17.9 %. This is closely related to its hetero-structured characteristic in the as-extruded MZAX2000 alloy consisting of coarse grains (16 %), fine grains (75 %), and fiber regions (9 %). Therefore, this work offers new insights into optimizing alloy compositions and processing parameters for attaining new high strong and ductile low-alloyed Mg alloys.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072178","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}
引用次数: 0
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