Journal of Magnesium and Alloys最新文献_第8页

Enhanced corrosion resistance of calcium carbonate coatings on magnesium alloy via simple stearic acid treatment 硬脂酸处理提高镁合金表面碳酸钙涂层的耐蚀性

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.022

Tianxiao Wang , Panpan Li , Yunting Guo , Yingchao Xu , Wen Kou , Guangyu Li , Jianshe Lian

{"title":"Enhanced corrosion resistance of calcium carbonate coatings on magnesium alloy via simple stearic acid treatment","authors":"Tianxiao Wang , Panpan Li , Yunting Guo , Yingchao Xu , Wen Kou , Guangyu Li , Jianshe Lian","doi":"10.1016/j.jma.2025.02.022","DOIUrl":"10.1016/j.jma.2025.02.022","url":null,"abstract":"<div><div>Magnesium alloy is a promising biodegradable metal material for hard tissue engineering. However, its high corrosion rate limits its application. In our previous study, we biomimetically deposited a calcium carbonate coating on the surface of magnesium alloy using siloxane induction. This calcium carbonate coating demonstrated excellent <em>in vitro</em> biocompatibility and provided partial protection for the magnesium alloy substrate. In this study, we further enhanced the corrosion resistance of the calcium carbonate coating by treating it with stearic acid and its derivative, sodium stearate. Electrochemical corrosion tests revealed that the sodium stearate-treated calcium carbonate coating reduced the corrosion rate by two orders of magnitude. Additionally, <em>in vitro</em> biocompatibility assessments showed that while the biocompatibility of the sodium stearate-treated coating was slightly reduced, it remained acceptable compared to the magnesium substrate. This study builds on our previous work and offers a promising reinforcement strategy for degradable magnesium alloys in medical applications.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1602-1616"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723925","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

Unraveling electrochemical performance of magnesium vanadate-based nanostructures as advanced cathodes for rechargeable aqueous zinc-ion batteries 钒酸镁基纳米结构作为可充电水性锌离子电池先进阴极的电化学性能研究

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.014

R. Shanthappa, Ashok Kumar Kakarla, Hari Bandi, Wasim Akram Syed, Jae Su Yu

{"title":"Unraveling electrochemical performance of magnesium vanadate-based nanostructures as advanced cathodes for rechargeable aqueous zinc-ion batteries","authors":"R. Shanthappa, Ashok Kumar Kakarla, Hari Bandi, Wasim Akram Syed, Jae Su Yu","doi":"10.1016/j.jma.2025.02.014","DOIUrl":"10.1016/j.jma.2025.02.014","url":null,"abstract":"<div><div>High-performance aqueous zinc (Zn)-ion batteries (AZIBs) have emerged as one of the greatest favorable candidates for next-generation energy storage systems because of their low cost, sustainability, high safety, and eco-friendliness. In this report, we prepared magnesium vanadate (MgVO)-based nanostructures by a facile single-step solvothermal method with varying experimental reaction times (1, 3, and 6 h) and investigated the effect of the reaction time on the morphology and layered structure for MgVO-based compounds. The newly prepared MgVO-1 h, MgVO-3 h and MgVO-6 h samples were used as cathode materials for AZIBs. Compared to the MgVO-1 h and MgVO-6 h cathodes, the MgVO-3 h cathode showed a higher specific capacity of 492.74 mA h g<sup>-1</sup> at 1 A g<sup>-1</sup> over 500 cycles and excellent rate behavior (291.58 mA h g<sup>-1</sup> at 3.75 A g<sup>-1</sup>) with high cycling stability (116%) over 2000 cycles at 5 A g<sup>-1</sup>. Moreover, the MgVO-3 h electrode exhibited good electrochemical performance owing to its fast Zn-ion diffusion kinetics. Additionally, various ex-situ analyses confirmed that the MgVO-3 h cathode displayed excellent insertion/extraction of Zn<sup>2+</sup> ions during charge and discharge processes. This study offers an efficient method for the synthesis of nanostructured MgVO-based cathode materials for high-performance AZIBs.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1660-1670"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546291","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 developments in coatings on biodegradable Mg alloys: A review 可生物降解镁合金涂层研究进展

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.01.027

Jie Yang , Zhihan Zhang , Wenhui Yao , Yulong Wu , Yuyang Gao , Yan Yang , Liang Wu , Maria Serdechnova , Carsten Blawert , Fusheng Pan

{"title":"Recent developments in coatings on biodegradable Mg alloys: A review","authors":"Jie Yang , Zhihan Zhang , Wenhui Yao , Yulong Wu , Yuyang Gao , Yan Yang , Liang Wu , Maria Serdechnova , Carsten Blawert , Fusheng Pan","doi":"10.1016/j.jma.2025.01.027","DOIUrl":"10.1016/j.jma.2025.01.027","url":null,"abstract":"<div><div>Mg and its alloys show high potential to be applied as implant materials due to their superior properties like biodegradability, bioactivity, biocompatibility, and suitable mechanical behaviors. Nevertheless, the fast and uncontrolled degradation of Mg alloys in biological environment severely restricts their wide applications as biomedical materials. In comparison with alloying, surface coatings can not only improve corrosion resistance but also impart other bio-functional properties to achieve diverse clinical requirements. This review analyzes and summarizes the most recent developments in popular coating technologies, including micro-arc oxidation, electrophoretic deposition, chemical conversion, anodic oxidation, layered double hydroxide, and sol-gel coatings. Considering inevitable damages under complex service conditions, smart self-healing coatings are also introduced in each coating technology. The existing issues and future perspectives are finally discussed to facilitate applications of Mg alloys as biomedical materials in the medical industry.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1405-1427"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608517","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

Making magnesium from low-grade magnesite: Experimental verification and life cycle assessment 低品位菱镁矿制镁：实验验证及生命周期评估

IF 17.6 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.025

Xiaorui Huang, Zifu Xu, Liangliang Fu, Zhennan Han, Kun Zhao, Kangjun Wang, Dingrong Bai, Guangwen Xu

{"title":"Making magnesium from low-grade magnesite: Experimental verification and life cycle assessment","authors":"Xiaorui Huang, Zifu Xu, Liangliang Fu, Zhennan Han, Kun Zhao, Kangjun Wang, Dingrong Bai, Guangwen Xu","doi":"10.1016/j.jma.2025.02.025","DOIUrl":"https://doi.org/10.1016/j.jma.2025.02.025","url":null,"abstract":"China, as the world`s largest producer and exporter of metallic magnesium, there are plenty of manufactures in the western provinces using the silicothermic method known as the Pidgeon process. The raw material used is usually dolomite containing about 20 wt.% element Mg. Liaoning province in the northeast China has up to 87 % of the national magnesite reserves, which contains 2–4 times more element Mg than dolomite does. How to economically produce metallic magnesium using magnesite is thus of significance for not only the local industry but also the flexible production of metal magnesium. This study proposed a process to produce magnesium using low-grade magnesite and further validated the proposal through experiments. Models of life cycle analysis are in turn formulated to evaluate the energy consumption and economic performance of the entire process proposed by taking the required source data from the Chinese Life Cycle Database (CLCD). The data comprehensively consider a variety of process equipment, energy supply pathways and geographical environments. In comparison with the Pidgeon process, the proposed pathway exhibited the best economic performance through its utilizing low-grade magnesite as the raw ore containing Mg and coke oven gas from steelworks as the fuel.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"16 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745195","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

Liquid-metal-electrode-assisted electrolysis for the production of sodium and magnesium 用于生产钠和镁的液态金属电极辅助电解法

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.01.028

Lei Guo , Huayi Yin , Wenmiao Li , Shiyu Wang , Kaifa Du , Hao Shi , Xu Wang , Dihua Wang

{"title":"Liquid-metal-electrode-assisted electrolysis for the production of sodium and magnesium","authors":"Lei Guo , Huayi Yin , Wenmiao Li , Shiyu Wang , Kaifa Du , Hao Shi , Xu Wang , Dihua Wang","doi":"10.1016/j.jma.2024.01.028","DOIUrl":"10.1016/j.jma.2024.01.028","url":null,"abstract":"<div><div>Sodium (Na) and magnesium (Mg) are becoming important for making energy-storage batteries and structural materials. Herein, we develop a liquid-metal-electrode-assisted electrolysis route to producing Na and Mg with low-carbon emissions and no chlorine gas evolution. The clean production stems from the choice of a molten NaCl-Na<sub>2</sub>CO<sub>3</sub> electrolyte to prevent chlorine gas evolution, an inert nickel-based anode to produce oxygen, and a liquid metal cathode to make the cathodic product sit at the bottom of the electrolytic cell. We achieve a current efficiency of >90% for the electrolytic production of liquid Na-Sn alloy. Later, Mg-Sn alloy is prepared using the obtained Na-Sn alloy to displace Mg from molten NaCl-MgCl<sub>2</sub> with a displacement efficiency of >96%. Further, Na and Mg are separated from the electrolytic Na-Sn and displaced Mg-Sn alloys by vacuum distillation with a recovery rate of >92% and Sn can be reused. Using this electrolysis-displacement-distillation (EDD) approach, we prepare Mg from seawater. The CO<sub>2</sub> emission of the EDD approach is ∼20.6 kg CO<sub>2</sub> per kg Mg, which is less than that of the Australian Magnesium (AM) electrolysis process (∼25.0 kg CO<sub>2</sub> per kg Mg) and less than half that of the Pidgeon process (∼45.2 kg CO<sub>2</sub> per kg Mg).</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1579-1591"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139937898","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

Anisotropy of V3O7 nanobelts enables ultralong cycling life of magnesium ion battery 各向异性的 V3O7 纳米颗粒实现了镁离子电池的超长循环寿命

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.03.010

Xiu-Fen Ma , Hong-Yi Li , Jing Tan , Jinan Wang , Jiang Diao , Jili Yue , Shuangshuang Tan , Guangsheng Huang , Jingfeng Wang , Fusheng Pan

{"title":"Anisotropy of V3O7 nanobelts enables ultralong cycling life of magnesium ion battery","authors":"Xiu-Fen Ma , Hong-Yi Li , Jing Tan , Jinan Wang , Jiang Diao , Jili Yue , Shuangshuang Tan , Guangsheng Huang , Jingfeng Wang , Fusheng Pan","doi":"10.1016/j.jma.2024.03.010","DOIUrl":"10.1016/j.jma.2024.03.010","url":null,"abstract":"<div><div>Magnesium ion batteries (MIBs) are a promising alternative to lithium-ion batteries, which suffer from the short cycling life and sluggish Mg<sup>2+</sup> diffusion kinetics of cathodes. Nano morphologies are used to shorten Mg<sup>2+</sup> diffusion path for diffusion kinetics acceleration, but the cycling life is still unsatisfactory. Herein, the anisotropy of layered V<sub>3</sub>O<sub>7</sub>⋅1.9H<sub>2</sub>O nanobelts is utilized to stabilize their structure during discharging/charging. The V<sub>3</sub>O<sub>7</sub>⋅1.9H<sub>2</sub>O nanobelts grow along the preponderant migration direction of Mg<sup>2+</sup>, and the resulted axial migration of Mg<sup>2+</sup> enables the stress caused by Mg<sup>2+</sup> insertion to be decentralized in large zone, thus improving the cycling stability of V<sub>3</sub>O<sub>7</sub>⋅1.9H<sub>2</sub>O nanobelts. The inserted Mg<sup>2+</sup> cations bond with O atoms in adjacent V<sub>3</sub>O<sub>8</sub> layers of V<sub>3</sub>O<sub>7</sub>⋅1.9H<sub>2</sub>O, further stablizing the layered structure. Meanwhile, the axial migration of Mg<sup>2+</sup> significantly reduces the charge transfer resistance at electrode/electrolyte interface, which accelerates the Mg<sup>2+</sup> diffusion kinetics. Thus, the symmetric RMB assembled from V<sub>3</sub>O<sub>7</sub>⋅1.9H<sub>2</sub>O nanobelts exhibits an ultralong cycling life of 11,000 cycles at 4 A g<sup>−1</sup>, alongside a high specific capacity of 137 mAh g<sup>−1</sup> at 0.05 A g<sup>−1</sup>. According to our knowledge, this ultralong cycling life surpasses those of reported full RMBs. This strategy provides insight into the design of cathode materials with improved cycling lives.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1592-1601"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140281162","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

Dramatic improvement of formability in Mg-3Al-1Sn-0.5Ca-0.1Sm alloy via Mn microalloying combined with high temperature rolling 通过锰微合金化结合高温轧制大幅提高 Mg-3Al-1Sn-0.5Ca-0.1Sm 合金的成型性

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.06.022

Shi-Chao Wang , Si-Yu Chen , Zhong-Zheng Jin , Xiao Ma , Hai-Long Jia , Jia-Ning Zhu , Chun-Yuan Li , Min Zha , Hui-Yuan Wang

{"title":"Dramatic improvement of formability in Mg-3Al-1Sn-0.5Ca-0.1Sm alloy via Mn microalloying combined with high temperature rolling","authors":"Shi-Chao Wang , Si-Yu Chen , Zhong-Zheng Jin , Xiao Ma , Hai-Long Jia , Jia-Ning Zhu , Chun-Yuan Li , Min Zha , Hui-Yuan Wang","doi":"10.1016/j.jma.2024.06.022","DOIUrl":"10.1016/j.jma.2024.06.022","url":null,"abstract":"<div><div>Rolled Mg-Al-Sn series alloys generally possess limited formability due to the formation of strong basal texture. Texture weakening is an effective way to enhance formability, but usually accompanied with decreasing strength. In this work, synergistic enhancement of strength and formability is achieved in a Mg-3Al-1Sn-0.5Ca-0.1Sm (ATXS3110) alloy by 0.2 wt.% Mn addition combined with high temperature rolling, exhibiting a high index Erichsen (I.E.) value of ∼8.1 mm and near-isotropic mechanical properties. On one hand, after Mn addition, the grain refinement from ∼7.6 µm to ∼4.1 µm results in suppression of extension twinning, thereby preventing the development of strong basal texture upon stretch forming. On the other hand, trace Mn addition narrows the grain size distribution and promotes the formation of uniform fine grains, which induces homogeneous deformation during stretch forming. Moreover, grain refinement and high-density nano-sized precipitates caused by trace Mn addition increase the strength. This work may provide insights into designing low-cost Mg-Al-Sn series alloys with superior comprehensive mechanical properties for further structural applications.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1630-1645"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141696201","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

Towards age-hardening ability enhancement and high strength in Mg–Gd–Ag alloy by balancing grain refinement and weakening of dynamic precipitation 通过平衡晶粒细化和动态析出弱化，提高镁镉银合金的时效硬化能力和强度

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.06.032

Zhenquan Yang , Aibin Ma , Bingqian Xu , Guowei Wang , Jinghua Jiang , Jiapeng Sun

{"title":"Towards age-hardening ability enhancement and high strength in Mg–Gd–Ag alloy by balancing grain refinement and weakening of dynamic precipitation","authors":"Zhenquan Yang , Aibin Ma , Bingqian Xu , Guowei Wang , Jinghua Jiang , Jiapeng Sun","doi":"10.1016/j.jma.2024.06.032","DOIUrl":"10.1016/j.jma.2024.06.032","url":null,"abstract":"<div><div>The dilemma of choosing between superb grain boundary strengthening and excellent precipitation strengthening is commonly faced in the pursuit of high-strength age-hardenable Mg alloys. Here, a strategy for addressing this dilemma <em>via</em> the balance between grain refinement and weakening of dynamic precipitation is proposed and applied on a Mg–10.95Gd–2.06Ag (wt%) alloy treated by sequential processing of equal-channel angular pressing (ECAP), hot rolling and aging. The hot rolling leads to a noticeable dissolution of the dynamic precipitates intensively formed during prior ECAP, together with a tolerable grain growth. Meanwhile, numerous multi-twinning-induced lamellar bands (LBs) demarcated by coaxial grain boundaries (CGBs) subdivide the grains. For the first time, a quadruple twinning pattern for the formation of CGB with a misorientation of ∼135° is raised. During post-rolling aging, besides the common <em>β’</em> and <em>γ”</em> precipitates and the <em>β</em> nano-particles whose Gd/Ag ratio is much lower than that of dynamically precipitated <em>β</em> particles, the <em>β”</em>/<em>β<sub>T</sub></em> precipitates, CGB segregation, and stacking fault (SF)-associated segregation/<em>γ’</em> precipitates within LBs, are also involved with the precipitation structure. Benefiting from this complex precipitation structure, a good age-hardening ability manifested by the aging-induced tensile yield strength (TYS) increment reaching 115 MPa is attained. Combining with the strengthening from grain boundaries, dislocations, solutes, and basal texture, a high TYS of 447 MPa is achieved.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1699-1720"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141705675","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

Mathematical modeling of salicylate effects on high-purity Mg anode for aqueous primary Mg-Air batteries 水杨酸盐对高纯度Mg-空气原水电池阳极影响的数学建模

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2025.02.027

Wen Xu , Yulong Wu , Darya Snihirova , Linqian Wang , Min Deng , Cheng Wang , Sviatlana V. Lamaka , Mikhail L. Zheludkevich , Daniel Höche

{"title":"Mathematical modeling of salicylate effects on high-purity Mg anode for aqueous primary Mg-Air batteries","authors":"Wen Xu , Yulong Wu , Darya Snihirova , Linqian Wang , Min Deng , Cheng Wang , Sviatlana V. Lamaka , Mikhail L. Zheludkevich , Daniel Höche","doi":"10.1016/j.jma.2025.02.027","DOIUrl":"10.1016/j.jma.2025.02.027","url":null,"abstract":"<div><div>This study investigates the effectiveness of salicylate (SAL) as an electrolyte additive on the discharge behavior of high-purity (HP) Mg anode in an aqueous half-cell system, using an integrated approach of mathematical modeling and experimental analysis. A finite element-based model is developed to elucidate the key mechanisms by which SAL influences the voltage profile and pH. Systematic electrochemical measurements, especially intermittent discharge tests combined with electrochemical impedance spectroscopy (EIS), demonstrate that SAL can enhance initial voltage stability of HP Mg anode. Moreover, the model incorporates the SAL-Mg complexation factor to describe the role of SAL in modifying the deposit film on HP Mg surface. The agreement between model predictions and experimental observations suggests that SAL facilitates the formation of compact Mg(OH)<sub>2</sub> deposits and sustains a favorable pH environment within the half-cell compartment. This integrated approach provides new insights into understanding and optimizing additive effects for Mg-air batteries.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1506-1522"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723728","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 characteristics of high-purity magnesium implants under single static and cyclic compressive loads in vivo and in vitro 高纯度镁植入物在体内和体外单一静态和循环压缩载荷下的降解特性

IF 15.8 1区材料科学

Journal of Magnesium and Alloys Pub Date : 2025-04-01 DOI: 10.1016/j.jma.2024.12.014

Long Guo , Xuanbin Zhang , Zhishan Zhang , Zhixiu Hao

{"title":"Degradation characteristics of high-purity magnesium implants under single static and cyclic compressive loads in vivo and in vitro","authors":"Long Guo , Xuanbin Zhang , Zhishan Zhang , Zhixiu Hao","doi":"10.1016/j.jma.2024.12.014","DOIUrl":"10.1016/j.jma.2024.12.014","url":null,"abstract":"<div><div>The degradation characteristics of high-purity (HP) magnesium (Mg) orthopedic implants under static and cyclic compressive loads (SCL and CCL) remain inadequately understood. This study developed an <em>in vivo</em> loading device capable of applying single SCL and CCL while shielding against unpredictable host movements. <em>In vitro</em> degradation experiments of HP Mg implants were conducted to verify the experimental protocol, and <em>in vivo</em> experiments in rabbit tibiae to observe the degradation characteristics of the implants. Micro-computed tomography and scanning electron microscope were used for three-dimensional reconstruction and surface morphology analysis, respectively. Compared to <em>in vitro</em> specimens, <em>in vivo</em> specimens exhibited significantly higher corrosion rates and more extensive cracking. Cracks in the <em>in vivo</em> specimens gradually penetrated deeper from the loading surface, eventually leading to a rapid structural deterioration; whereas <em>in vitro</em> specimens exhibited more surface-localized cracking and a relatively uniform corrosion pattern. Compared to SCL, CCL accelerated both corrosion and cracking to some extent. These findings provide new insights into the <em>in vivo</em> degradation behavior of Mg-based implants under compressive loading conditions.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"13 4","pages":"Pages 1480-1494"},"PeriodicalIF":15.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142981516","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