Journal of Magnesium and Alloys最新文献

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Low-energy and accelerated hydrogen release from MgH2–5 wt% NaTiOxH catalyzed hydrogen storage reactor by graphite responsive microwave 石墨响应微波在MgH2-5 wt% NaTiOxH催化储氢反应器中低能加速释氢
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-02 DOI: 10.1016/j.jma.2025.03.002
Bofei Wang, Zhen Wu, Honghao Liu, Fusheng Yang, Zaoxiao Zhang, Jing Yao, Qian Li, Hujun Cao, Bo Li
{"title":"Low-energy and accelerated hydrogen release from MgH2–5 wt% NaTiOxH catalyzed hydrogen storage reactor by graphite responsive microwave","authors":"Bofei Wang, Zhen Wu, Honghao Liu, Fusheng Yang, Zaoxiao Zhang, Jing Yao, Qian Li, Hujun Cao, Bo Li","doi":"10.1016/j.jma.2025.03.002","DOIUrl":"https://doi.org/10.1016/j.jma.2025.03.002","url":null,"abstract":"Owing to high thermal stability and large reaction enthalpy, MgH<sub>2</sub> has high reaction temperatures and sluggish reaction kinetics in the dehydrogenation process, which consumes lots of energy. To achieve hydrogen release with low energy consumption, accelerated reaction rate, and high heating uniformity, this paper proposes a novel method of graphite responsive microwave-assisted thermal management with NaTiO<em><sub>x</sub></em>H catalyst. A multi-physics model of the 5 wt% NaTiO<em><sub>x</sub></em>H catalyzed MgH<sub>2</sub> reactor integrated with a microwave generator is developed to investigate the reaction, heat and mass transfer process of hydrogen release. It is found that the graphite responsive microwave heating method could improve the temperature uniformity of reaction bed, reduce the energy consumption by at least 10.71% and save the hydrogen release time by 53.49% compared with the traditional electric heating method. Moreover, the hydrogen desorption thermodynamics could be improved with the increase of microwave power. The hydrogen release time is shortened by 19.55% with the increase of 20 W microwave power. Meanwhile, it is also concluded that the microwave excitation frequency of 2.1 GHz and the graphite content of 2 wt% have better heating performance. Therefore, it can be verified that the graphite responsive microwave heating helps to low-energy and accelerated hydrogen release from MgH<sub>2</sub> hydrogen storage reactor.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"75 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758162","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
First-principles calculations to investigate the structural, elastic and thermodynamic properties of full-Heusler MgXY2(X = Zn, Cd, Y = Ag, Au, Cu) compounds 通过第一性原理计算研究全赫斯勒 MgXY2(X = Zn、Cd,Y = Ag、Au、Cu)化合物的结构、弹性和热力学性质
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-02 DOI: 10.1016/j.jma.2025.03.012
Tahsin Özer, Murat Çanlı, Nihat Arıkan, Ali İhsan Öztürk
{"title":"First-principles calculations to investigate the structural, elastic and thermodynamic properties of full-Heusler MgXY2(X = Zn, Cd, Y = Ag, Au, Cu) compounds","authors":"Tahsin Özer, Murat Çanlı, Nihat Arıkan, Ali İhsan Öztürk","doi":"10.1016/j.jma.2025.03.012","DOIUrl":"https://doi.org/10.1016/j.jma.2025.03.012","url":null,"abstract":"Magnesium and its compounds are recognized as favorable materials for structural uses, primarily due to their lightweight nature and remarkable specific strength. This research employed first-principles methodologies to investigate how pressure affects the crystal structure along with the elastic and thermodynamic characteristics of MgXY<sub>2</sub> (<em>X</em>=Zn, Cd, and <em>Y</em>= Ag, Au, Cu) compounds. All analyses were implemented via the Perdew-Burke-Ernzerhof variant of the Generalized Gradient Approximation alongside a plane-wave ultrasoft pseudopotential approach. The findings on the elastic constants indicated that these MgXY<sub>2</sub> compounds have maintained their stability at pressures up to 500 kBar. These constants informed detailed assessments of properties like elastic modulus, Poisson's ratio, Vickers hardness, and material anisotropy. The Quantum Espresso software was utilized to calculate melting points, Debye temperature, and minimum thermal conductivity values. A temperature range spanning from 0 to 800 K allowed for an evaluation of vibrational energy, free energy, entropy, and specific heat capacity metrics. The anticipated physical attributes suggest significant potential for these magnesium compounds in biomedical fields.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"62 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766437","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
Microstructure and mechanical properties of ZK61 magnesium alloy thin-walled cylindrical component processed by two-step forging ZK61镁合金薄壁圆柱件两步锻造组织与力学性能
IF 17.6 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-02 DOI: 10.1016/j.jma.2025.02.033
Fang Chai, Jianqiang Feng, Xinghui Han, Wuhao Zhuang, Yizhe Chen, Zhili Hu, Xuan Hu, Fangyan Zheng, Lin Hua
{"title":"Microstructure and mechanical properties of ZK61 magnesium alloy thin-walled cylindrical component processed by two-step forging","authors":"Fang Chai, Jianqiang Feng, Xinghui Han, Wuhao Zhuang, Yizhe Chen, Zhili Hu, Xuan Hu, Fangyan Zheng, Lin Hua","doi":"10.1016/j.jma.2025.02.033","DOIUrl":"https://doi.org/10.1016/j.jma.2025.02.033","url":null,"abstract":"Magnesium alloy thin-walled cylindrical components with the advantages of high specific stiffness and strength present broad prospect for the lightweight of aerospace components. However, poor formability resulting from the hexagonal close-packed crystal structure in magnesium alloy puts forwards a great challenge for thin-walled cylindrical components fabrication, especially for extreme structure with the thickness-changing web and the high thin-wall. In this research, an ZK61 magnesium alloy thin-walled cylindrical component was successfully fabricated by two-step forging, i.e., the pre-forging and final-forging is mainly used for wed and thin-wall formation, respectively. Microstructure and mechanical properties at the core, middle and margin of the web and the thin-wall of the pre-forged and final-forged components are studied in detail. Due to the large strain-effectiveness and metal flow along the radial direction (RD), the grains of the web are all elongated along RD for the pre-forged component, where an increasingly elongated trend is found from the core to the margin of the wed. A relatively low recrystallized degree occurs during pre-forging, and the web at different positions are all with prismatic and pyramid textures. During final-forging, the microstructures of the web and the thin-wall are almost equiaxed due to the remarkable occurrence of dynamic recrystallization. Similarity, except for few basal texture of the thin-wall, only prismatic and pyramid textures are found for the final-forged component. Compared with the initial billet, an obviously improved mechanical isotropy is achieved during pre-forging, which is well-maintained during final-forging.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"1 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766438","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 Al2O3 nano sol content in Ni-Al2O3 composite coating on intermetallic compound formation and properties of Mg/Al soldered joints Ni-Al2O3 复合涂层中 Al2O3 纳米溶胶含量对 Mg/Al 焊点金属间化合物形成和性能的影响
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.06.025
Yingzong Liu, Yuanxing Li, Jinzhe Cui, Zongtao Zhu, Hui Chen
{"title":"Effect of Al2O3 nano sol content in Ni-Al2O3 composite coating on intermetallic compound formation and properties of Mg/Al soldered joints","authors":"Yingzong Liu,&nbsp;Yuanxing Li,&nbsp;Jinzhe Cui,&nbsp;Zongtao Zhu,&nbsp;Hui Chen","doi":"10.1016/j.jma.2024.06.025","DOIUrl":"10.1016/j.jma.2024.06.025","url":null,"abstract":"<div><div>Combining Mg and Al dissimilar metals further reduces structural weight, but the formation of intermetallic compounds (IMCs) affects Al/Mg joint properties. To prevent IMCs, a Ni-Al<sub>2</sub>O<sub>3</sub> composite coating was pre-plated on the Mg alloy substrate, and then Sn3.0Ag0.5Cu (SAC 305) solder was utilized to facilitate the joining of AZ31 Mg/6061 Al through ultrasonic-assisted soldering. We investigated the impact of Al<sub>2</sub>O<sub>3</sub> nano sol content in the coating on microstructure evolution, IMCs formation, and mechanical properties. Results indicated that the Ni-Al<sub>2</sub>O<sub>3</sub> composite coating effectively suppressed the Mg-Sn reaction, thereby preventing the formation of Mg<sub>2</sub>Sn IMC and significantly enhancing joint strength. In joints with a Ni-Al<sub>2</sub>O<sub>3</sub> composite coating containing 50 mL/L Al<sub>2</sub>O<sub>3</sub> nano sol, no Mg<sub>2</sub>Sn IMC was detected after 50 min of holding at 260 °C, achieving a maximum shear strength of approximately 67.2 MPa. Increasing the Al<sub>2</sub>O<sub>3</sub> concentration further expanded the soldering process window. For the joint with Ni-Al<sub>2</sub>O<sub>3</sub> (100 mL/L Al<sub>2</sub>O<sub>3</sub> nano sol) composite coating held at 260 °C for 70 min, the coating was dissolved to a thickness of about 5.8 µm, but no Mg<sub>2</sub>Sn IMC was observed. The Ni-based solid solution formed near the coating/solder interface was strengthened, leading to fractures occurring within the SAC solder, and the maximum shear strength further increased to 73.9 MPa. The strengthening mechanism of the joints facilitated by using the Ni-Al<sub>2</sub>O<sub>3</sub> composite coating was revealed by comparing with pure Ni-assisted joints. Therefore, employing a Ni-Al<sub>2</sub>O<sub>3</sub> composite coating as a barrier layer represents a promising strategy for inhibiting IMC formation during the joining of dissimilar metals.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1784-1798"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141700283","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 overview in improving corrosion resistance of Mg alloys: Enhancing protective coatings with plasma electrolytic oxidation and superhydrophobic coatings 提高镁合金耐蚀性的综合综述:用等离子体电解氧化和超疏水涂层增强保护涂层
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.023
Arash Fattah-alhosseini, Haniye Salimi, Minoo Karbasi
{"title":"A comprehensive overview in improving corrosion resistance of Mg alloys: Enhancing protective coatings with plasma electrolytic oxidation and superhydrophobic coatings","authors":"Arash Fattah-alhosseini,&nbsp;Haniye Salimi,&nbsp;Minoo Karbasi","doi":"10.1016/j.jma.2025.02.023","DOIUrl":"10.1016/j.jma.2025.02.023","url":null,"abstract":"<div><div>The corrosion resistance of magnesium alloys is a significant concern in industries seeking to use these materials for lightweight structures. Plasma electrolytic oxidation (PEO) is a process that forms a ceramic oxide film on Mg alloy surfaces, effectively enhancing their corrosion performance in the short term. In this regard, optimizing PEO process parameters is crucial for creating a stable oxide layer. An improved level of corrosion resistance is ensured by applying superhydrophobic coating (SHC) on top of the PEO layer to prevent moisture infiltration, creating air pockets on the surface. Various methods are employed to fabricate SHC on Mg alloys, including techniques like electrophoretic deposition (EPD), Hydrothermal (HT), dip, and spray coating. The synergistic combination of PEO and SHC coatings has demonstrated encouraging outcomes in enhancing the corrosion performance of Mg alloys. This study offers an extensive overview of recent progress in the preparation, characterization, and corrosion behavior of Mg alloys by employing PEO coatings and SHC treatment processes.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1386-1404"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713193","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
Investigation of tensile twinning on texture and microstructure evolution of Mg-3Al-1Zn-1Ca alloy under in-plane shear deformation 面内剪切变形对Mg-3Al-1Zn-1Ca合金织构和组织演变的拉伸孪晶研究
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.017
Saurav Kumar , Mahesh Panchal , Appala N. Gandi , Lalit Kaushik , Shi-Hoon Choi , Jaiveer Singh
{"title":"Investigation of tensile twinning on texture and microstructure evolution of Mg-3Al-1Zn-1Ca alloy under in-plane shear deformation","authors":"Saurav Kumar ,&nbsp;Mahesh Panchal ,&nbsp;Appala N. Gandi ,&nbsp;Lalit Kaushik ,&nbsp;Shi-Hoon Choi ,&nbsp;Jaiveer Singh","doi":"10.1016/j.jma.2025.02.017","DOIUrl":"10.1016/j.jma.2025.02.017","url":null,"abstract":"<div><div>The evolution of microstructure and texture in Mg-3Al-1Zn-1Ca alloy sheets subjected to in-plane shear (IPS) loading was investigated using experimental techniques and viscoplastic self-consistent (VPSC) modeling. The specimens were deformed under varying degrees of IPS strain (γ₁₂ = 0.05, 0.10, and 0.15) using a customized jig. Electron backscatter diffraction (EBSD) observations revealed profuse tensile twinning (TTW) even at an IPS strain of 0.05, with its intensity continuously increased as the IPS strain increased. The TTWs progressively engulfed parent grains with increasing shear strain, evolving into an unusual deformation twin morphology. Furthermore, VPSC model predictions confirmed basal slip as the dominant deformation mode at low IPS strains, transitioning to prismatic slip dominance at higher IPS strains. The activity of the TTW mode was significantly higher during the initial stages of IPS strain and saturated to lower values at higher strains. VPSC simulation results also indicated preferential shear accumulation on a single twin system, explaining the phenomenon of a single twin variant engulfing a parent grain. Additionally, the influence of individual slip and twin modes on texture evolution was evaluated through orientation tracking of representative grains at various shear strain increments using VPSC simulation. The simulation results quantitatively highlighted the activities of basal slip, prismatic slip, and tensile twinning, establishing a correlation between texture evolution and the underlying deformation mechanisms.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1815-1828"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713136","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
The development and prospect of bio-Mg alloy materials 生物镁合金材料的发展与展望
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.04.005
Jia She , Xianhua Chen
{"title":"The development and prospect of bio-Mg alloy materials","authors":"Jia She ,&nbsp;Xianhua Chen","doi":"10.1016/j.jma.2025.04.005","DOIUrl":"10.1016/j.jma.2025.04.005","url":null,"abstract":"","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1383-1385"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836856","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
Near-infrared responsive polycaprolactone coatings for magnesium implants: Photodynamic antibacterial and controllable dissolution 镁植入物近红外响应聚己内酯涂层:光动力抗菌和可控溶解
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.11.013
Xi Liu , Jinglong Pan , You Lv , Xu Wang , Xiaoze Ma , Xinxin Zhang , Guangyi Cai , Zehua Dong
{"title":"Near-infrared responsive polycaprolactone coatings for magnesium implants: Photodynamic antibacterial and controllable dissolution","authors":"Xi Liu ,&nbsp;Jinglong Pan ,&nbsp;You Lv ,&nbsp;Xu Wang ,&nbsp;Xiaoze Ma ,&nbsp;Xinxin Zhang ,&nbsp;Guangyi Cai ,&nbsp;Zehua Dong","doi":"10.1016/j.jma.2024.11.013","DOIUrl":"10.1016/j.jma.2024.11.013","url":null,"abstract":"<div><div>Magnesium implants have received widespread attention in orthopaedic surgery. However, the mechanical degradation and concurrent inflammation caused by the rapid corrosion of Mg limits their applications. In this study, a kind of unique core-shell heterojunction CuS@PPy nanostructures was synthesized and then incorporated in polycaprolactone (PCL) to construct an intelligent coating (CuS@PPy/PCL) on micro-arc-oxidized Mg implants. The PCL-based coating can realize near-infrared (NIR)-driven antibacterial and controllable Mg dissolution according to different bone healing stages. At the beginning of bone remodelling, the coating exhibits promising antibacterial properties with 99.67% and 99.17% efficacy against <em>S. aureus</em> and <em>E. coli</em>, respectively, thanks to the singlet oxygen (<sup>1</sup>O<sub>2</sub>) and alkoxyl radicals (RO·) generated by the photodynamic effect of CuS@PPy heterojunction under low-power NIR light (1.5 W/cm<sup>2</sup>). In the bone reparative stage, the PCL-based coating can maintain high corrosion resistance to meet the mechanical requirements of Mg implants in human body fluid. However, after the complete rehabilitation of bones, through a high-power (2 W/cm<sup>2</sup>) NIR light, the PCL-based coating changed from an elastic to a viscous flow state (44.7 °C) under the photothermal effects of CuS@PPy, leading to quick degradation of the PCL-based coating and following accelerating dissolution of the Mg implant (avoiding secondary surgery). Hopefully, this NIR-responsive coating may provide an innovative method for the antibacterial and controllable dissolution of Mg implants.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1671-1684"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823310","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
Comprehensive study on corrosion, wear and fatigue performance of low-porosity PEO coating on Mg alloy 镁合金低孔隙率PEO涂层腐蚀、磨损和疲劳性能的综合研究
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.01.023
Xiaopeng Lu , Yufei Xie , Xinyu Zhang , Jirui Ma , Lingxiong Sun , Quantong Jiang , Wojciech Simka , Dan Zhang , Baorong Hou , Fuhui Wang
{"title":"Comprehensive study on corrosion, wear and fatigue performance of low-porosity PEO coating on Mg alloy","authors":"Xiaopeng Lu ,&nbsp;Yufei Xie ,&nbsp;Xinyu Zhang ,&nbsp;Jirui Ma ,&nbsp;Lingxiong Sun ,&nbsp;Quantong Jiang ,&nbsp;Wojciech Simka ,&nbsp;Dan Zhang ,&nbsp;Baorong Hou ,&nbsp;Fuhui Wang","doi":"10.1016/j.jma.2025.01.023","DOIUrl":"10.1016/j.jma.2025.01.023","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1685-1698"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","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}
引用次数: 0
Degradation behavior of pure Mg in the physiological medium and growth mechanism of surface corrosion product films 纯镁在生理介质中的降解行为及表面腐蚀产物膜的生长机理
IF 15.8 1区 材料科学
Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.05.012
Chenyu Wang , Mingshan Sun , Chao Yang , Haiyang Wang , Jie Wang , Lin Mao , Yao Yang , Tao Ying , Paul K. Chu , Xiaoqin Zeng
{"title":"Degradation behavior of pure Mg in the physiological medium and growth mechanism of surface corrosion product films","authors":"Chenyu Wang ,&nbsp;Mingshan Sun ,&nbsp;Chao Yang ,&nbsp;Haiyang Wang ,&nbsp;Jie Wang ,&nbsp;Lin Mao ,&nbsp;Yao Yang ,&nbsp;Tao Ying ,&nbsp;Paul K. Chu ,&nbsp;Xiaoqin Zeng","doi":"10.1016/j.jma.2024.05.012","DOIUrl":"10.1016/j.jma.2024.05.012","url":null,"abstract":"<div><div>Pure Mg boasting a relatively small corrosion rate is a potential biodegradable metal material for implants. However, its degradation behavior in the complex physiological environment is still a lack of understanding. In this work, we investigated the effect of corrosion product film layers on the degradation behavior of pure Mg in physiological environments. Pure Mg shows a faster corrosion rate in simulated body fluid (SBF) compared to NaCl solution. Hydrogen evolution experiments indicate that the degradation rate of pure Mg in SBF decreases rapidly within the first 12 h but stabilizes afterward. The rapid deposition of low-solubility calcium phosphate on the pure Mg in SBF provides protection to the substrate, resulting in a gradual decrease in the degradation rates. Consequently, the corrosion product film of pure Mg formed in SBF exhibits a layered structure, with the upper layer consisting of dense Ca<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>/Mg<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> and the lower layer consisting of Mg(OH)<sub>2</sub>/MgO. Electrochemical impedance spectroscopy (EIS) shows that the resistance of the corrosion product film increases over time, indicating gradual strengthening of the corrosion resistance. The 4-week degradation results in the femoral marrow cavity of mice are consistent with the result in SBF <em>in vitro</em>.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1523-1535"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141846976","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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