Journal of Magnesium and Alloys最新文献

{"title":"Research advances of magnesium and magnesium alloys globally in 2023","authors":"Jia She, Jing Chen, Xiaoming Xiong, Yan Yang, Xiaodong Peng, Daolun Chen, Fusheng Pan","doi":"10.1016/j.jma.2024.10.001","DOIUrl":"https://doi.org/10.1016/j.jma.2024.10.001","url":null,"abstract":"Magnesium materials have attracted the attention of many researchers, and the related research is expanding. This article summarizes the advance in the research and development of magnesium materials globally in 2023 from bibliometric and scientific perspectives. More than 4680 articles on Mg and its alloys were published and indexed in the Web of Science (WoS) Core Collection database last year. The bibliometric analyses show that the traditional structural Mg alloys, functional Mg materials, and corrosion and protection of Mg alloys are still the main research focus. Therefore, this review paper mainly focuses on the research progress of Mg cast alloys, Mg wrought alloys, bio-magnesium alloys, Mg-based energy storage materials, corrosion and protection of Mg alloys in 2023. In addition, future research directions are proposed based on the challenges and obstacles identified throughout this review.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142487060","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":"Orchestrated degradation behavior of Mg mesh for calvarial bone defect reconstruction","authors":"Ume Farwa, Seongsu Park, Myeongki Park, Ihho Park, Byoung-Gi Moon, Byong-Taek Lee","doi":"10.1016/j.jma.2024.09.014","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.014","url":null,"abstract":"The biodegradability and biocompatibility of Mg alloys have rendered them favorable for cranial reconstruction applications. However, their rapid degradation rate has limited widespread use. In this study, we developed a Mg alloy -based mesh designed for calvarial bone defect reconstruction. We modulated the bone formation through the controlled degradation rate of the Mg alloy mesh. To achieve this, the Mg alloy mesh was coated with 2 types of coatings: Zn-d/Ca-P and Zn-d/Ca-P/P. Our findings revealed that, in comparison to the uncoated Mg alloy, both Zn-d/Ca-P and Zn-d/Ca-P/P coatings significantly reduced the degradation rate. The biocompatibility of the coated meshes improved markedly. With the Zn-d/Ca-P coating, there was not only an augmentation in the osteogenic potential of the Mg mesh but also an enhancement in angiogenic capacity. These meshed Mg samples were subsequently implanted into calvarial defects in rats. Bone regeneration was accelerated in specimens treated with Zn-d/Ca-P and Zn-d/Ca-P/P coatings compared to those with the bare Mg mesh. Furthermore, the in vivo assessments indicated that the coated meshes promoted angiogenesis. Nonetheless, the degradation rate of the Zn-d/Ca-P/P coating was slower than that of Zn-B/Ca-P. For applications requiring prolonged mechanical support, the Zn-d/Ca-P/P coating on Mg alloy is recommended, whereas the Zn-d/Ca-P coating is advisable for rapid regeneration where extended mechanical support is not critical.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142450157","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":"Magnesium alloys as alternative anode materials for rechargeable magnesium-ion batteries: Review on the alloying phase and reaction mechanisms","authors":"Dedy Setiawan, Hyeonjun Lee, Jangwook Pyun, Amey Nimkar, Netanel Shpigel, Daniel Sharon, Seung-Tae Hong, Doron Aurbach, Munseok S. Chae","doi":"10.1016/j.jma.2024.09.018","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.018","url":null,"abstract":"Magnesium-ion batteries (MIBs) are promising candidates for lithium-ion batteries because of their abundance, non-toxicity, and favorable electrochemical properties. This review explores the reaction mechanisms and electrochemical characteristics of Mg-alloy anode materials. While Mg metal anodes provide high volumetric capacity and dendrite-free electrodeposition, their practical application is hindered by challenges such as sluggish Mg²⁺ ion diffusion and electrolyte compatibility. Alloy-type anodes that incorporate groups XIII, XIV, and XV elements have the potential to overcome these limitations. We review various Mg alloys, emphasizing their alloying/dealloying reaction mechanisms, their theoretical capacities, and the practical aspects of MIBs. Furthermore, we discuss the influence of the electrolyte composition on the reversibility and efficiency of these alloy anodes. Emphasis is placed on overcoming current limitations through innovative materials and structural engineering. This review concludes with perspectives on future research directions aimed at enhancing the performance and commercial viability of Mg alloy anodes and contributing to the development of high-capacity, safe, and cost-effective energy storage systems.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439172","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":"Isothermal hydrogen absorption process of Pd-capped Mg films traced by ion beam techniques and optical methods","authors":"D. Abejón, P. Prieto, J.K. Kim, A. Redondo-Cubero, M.L. Crespillo, F. Leardini, I.J. Ferrer, G. García, J.R. Ares","doi":"10.1016/j.jma.2024.09.019","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.019","url":null,"abstract":"Pd-capped nanocrystalline Mg films were prepared by electron beam evaporation and hydrogenated under isothermal conditions to investigate the hydrogen absorption process via ion beam techniques and in situ optical methods. Films were characterized by different techniques such as X-ray diffraction (XRD) and scanning electron microscopy (SEM). Rutherford backscattering spectrometry (RBS) and elastic recoil detection analysis (ERDA) provided a detailed compositional depth profile of the films during hydrogenation. Gas-solid reaction kinetics theory applied to ERDA data revealed a H absorption mechanism controlled by H diffusion. This rate-limiting step was also confirmed by XRD measurements. The diffusion coefficient (D) was also determined via RBS and ERDA, with a value of <span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><mrow is=\"true\"><mo is=\"true\">(</mo><mn is=\"true\">1.1</mn><mo is=\"true\">±</mo><mn is=\"true\">0.1</mn><mo is=\"true\">)</mo></mrow><mo is=\"true\">·</mo><msup is=\"true\"><mn is=\"true\">10</mn><mrow is=\"true\"><mo is=\"true\">−</mo><mn is=\"true\">13</mn></mrow></msup></mrow></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"3.009ex\" role=\"img\" style=\"vertical-align: -0.812ex;\" viewbox=\"0 -945.9 7643.2 1295.7\" width=\"17.752ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><g is=\"true\"><g is=\"true\"><use xlink:href=\"#MJMAIN-28\"></use></g><g is=\"true\" transform=\"translate(389,0)\"><use xlink:href=\"#MJMAIN-31\"></use><use x=\"500\" xlink:href=\"#MJMAIN-2E\" y=\"0\"></use><use x=\"779\" xlink:href=\"#MJMAIN-31\" y=\"0\"></use></g><g is=\"true\" transform=\"translate(1891,0)\"><use xlink:href=\"#MJMAIN-B1\"></use></g><g is=\"true\" transform=\"translate(2891,0)\"><use xlink:href=\"#MJMAIN-30\"></use><use x=\"500\" xlink:href=\"#MJMAIN-2E\" y=\"0\"></use><use x=\"779\" xlink:href=\"#MJMAIN-31\" y=\"0\"></use></g><g is=\"true\" transform=\"translate(4171,0)\"><use xlink:href=\"#MJMAIN-29\"></use></g></g><g is=\"true\" transform=\"translate(4783,0)\"><use xlink:href=\"#MJMAIN-22C5\"></use></g><g is=\"true\" transform=\"translate(5283,0)\"><g is=\"true\"><use xlink:href=\"#MJMAIN-31\"></use><use x=\"500\" xlink:href=\"#MJMAIN-30\" y=\"0\"></use></g><g is=\"true\" transform=\"translate(1001,393)\"><g is=\"true\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-2212\"></use></g><g is=\"true\" transform=\"translate(550,0)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-31\"></use><use transform=\"scale(0.707)\" x=\"500\" xlink:href=\"#MJMAIN-33\" y=\"0\"></use></g></g></g></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"tr","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439520","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":"Twinning mediated anisotropic fracture behavior in bioimplant grade hot-rolled pure magnesium","authors":"Prakash C. Gautam, Somjeet Biswas","doi":"10.1016/j.jma.2024.09.013","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.013","url":null,"abstract":"Bioimplant grade hot-rolled magnesium with equiaxed microstructure and basal texture was examined for fracture toughness (FT) anisotropy using fatigue pre-cracked single-edge notch bending specimens with the notch, <em>a<sub>n</sub></em> ∥, ⊥ and 45° to rolling direction (RD). Due to adequate crack-tip plasticity, the size-independent elastic-plastic fracture toughness (<em>J<sub>IC</sub></em>) were determined. Anisotropic <em>J<sub>IC</sub></em> was observed due to different twin lamellae formation w.r.t. notch owing to the initial basal texture with <span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><mo is=\"true\">{</mo><mrow is=\"true\"><mn is=\"true\">10</mn><mover accent=\"true\" is=\"true\"><mn is=\"true\">1</mn><mo is=\"true\">¯</mo></mover><mn is=\"true\">0</mn></mrow><mo is=\"true\">}</mo></mrow></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.779ex\" role=\"img\" style=\"vertical-align: -0.812ex;\" viewbox=\"0 -846.5 3073 1196.3\" width=\"7.137ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><use is=\"true\" xlink:href=\"#MJMAIN-7B\"></use><g is=\"true\" transform=\"translate(500,0)\"><g is=\"true\"><use xlink:href=\"#MJMAIN-31\"></use><use x=\"500\" xlink:href=\"#MJMAIN-30\" y=\"0\"></use></g><g is=\"true\" transform=\"translate(1001,0)\"><g is=\"true\" transform=\"translate(35,0)\"><use xlink:href=\"#MJMAIN-31\"></use></g><g is=\"true\" transform=\"translate(0,198)\"><use x=\"-70\" xlink:href=\"#MJMAIN-AF\" y=\"0\"></use><use x=\"70\" xlink:href=\"#MJMAIN-AF\" y=\"0\"></use></g></g><g is=\"true\" transform=\"translate(1571,0)\"><use xlink:href=\"#MJMAIN-30\"></use></g></g><use is=\"true\" x=\"2572\" xlink:href=\"#MJMAIN-7D\" y=\"0\"></use></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><mo is=\"true\">{</mo><mrow is=\"true\"><mn is=\"true\">10</mn><mover accent=\"true\" is=\"true\"><mn is=\"true\">1</mn><mo is=\"true\">¯</mo></mover><mn is=\"true\">0</mn></mrow><mo is=\"true\">}</mo></mrow></math></span></span><script type=\"math/mml\"><math><mrow is=\"true\"><mo is=\"true\">{</mo><mrow is=\"true\"><mn is=\"true\">10</mn><mover accent=\"true\" is=\"true\"><mn is=\"true\">1</mn><mo is=\"true\">¯</mo></mover><mn is=\"true\">0</mn></mrow><mo is=\"true\">}</mo></mrow></math></script></span> and <span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><mo is=\"true\">{</mo><mrow is=\"true\"><mn is=\"true\">11</mn><mover accent=\"true\" is=\"true\"><mn is=\"true\">2</mn><mo is=\"true\">¯</mo></mover><mn is=\"true\">0</mn></mrow><mo is=\"true\">}</mo><","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439174","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":"Ti3C2Tx MXene-functionalized Hydroxyapatite/Halloysite nanotube filled poly– (lactic acid) coatings on magnesium: In vitro and antibacterial applications","authors":"Mehmet Topuz, Yuksel Akinay, Erkan Karatas, Tayfun Cetin","doi":"10.1016/j.jma.2024.09.017","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.017","url":null,"abstract":"Magnesium (Mg) stands out in temporary biomaterial applications due to its biocompatibility, biodegradability, and low Young's modulus. However, controlling its corrosion through next-generation polymer-based functional coatings is crucial due to the rapid degradation behavior of Mg. In this study, the function of 2D lamellar Ti₃C₂T_x (MXene) in Hydroxyapatite (HA) and Halloysite nanotube (HNT) hybrid coatings in biodegradable poly– (lactic acid) (PLA) was investigated. The morphological and structural characterizations of the coatings on Mg were revealed through HRTEM, XPS, SEM-EDX, XRD, FTIR, and contact angle analyses/tests. Electrochemical <em>in vitro</em> corrosion tests (OCP, PDS, and EIS-Nyquist) were conducted for evaluate corrosion resistance under simulated body fluid (SBF) conditions. The bioactivity of the coatings in SBF have been revealed in accordance with the ISO 23,317 standard. Finally, antibacterial disk diffusion tests were conducted to investigate the functional effect of MXene in coatings. It has been determined that the presence of MXene in the coating increased not only surface wettability (131°, 85°, 77°, and 74° for uncoated, pH, PHH, and PHH/MXene coatings, respectively) but also increased corrosion resistance (1857.850, 42.357, 1.593, and 0.085 × 10^–6, A/cm² for uncoated, pH, PHH, and PHH/MXene coatings, respectively). It has been proven that the <em>in vitro</em> bioactivity of PLA-HA coatings is further enhanced by adding HNT and MXene, along with SEM morphologies after SBF. Finally, 2D lamellar MXene-filled coating exhibits antibacterial behavior against both <em>E. coli</em> and <em>S. aureus</em> bacteria.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439173","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":"Effect of corrosion behavior of cast and extruded ZK60 magnesium alloys processed via friction extrusion","authors":"A. Sharma, V. Beura, D. Zhang, J. Darsell, S. Niverty, V. Prabhakaran, N. Overman, D.R. Herling, V. Joshi, K. Solanki","doi":"10.1016/j.jma.2024.09.015","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.015","url":null,"abstract":"The increasing demand for high-strength, corrosion-resistant magnesium alloys in transportation has led to the development of new processing techniques. In this work, cast and extruded ZK60 magnesium alloys were processed using the innovative solid-phase process, Friction Extrusion (FE). The microstructure was analyzed using Scanning Electron Microscopy (SEM), and Energy Dispersive Spectroscopy (EDS), showing a marked reduction in grain size, uniform solute distribution (Zn and Zr), and second phases after FE processing. Moreover, optical micrographs and Electron Backscatter Diffraction (EBSD) were employed to further evaluate the alloy microstructure. The corrosion resistance and electrochemical behavior were analyzed using potentiodynamic polarization, Scanning Electrochemical Cell Impedance Microscopy (SECCIM), and atomic emission spectroelectrochemistry analysis (AESEC). Time evolution surface imaging and post-corrosion microstructures were also analyzed to support the understanding of underlying corrosion mechanisms. Corrosion initiation and propagation in FE-processed samples followed grain boundary patterns, differing from cast and extruded ZK60 behaviors. Electrochemical measurements and <em>in-situ</em> time-dependent optical imaging demonstrated that FE processing enhanced corrosion potential, reduced corrosion current, and increased cathodic activity. Additionally, FE processing reduced the disparity in pitting potential between cast and extruded samples, resulting in intermediate pitting potentials. Higher Mg and lower Zn dissolution was observed in the lower anodic currents for FE-processed samples. During aggravated anodic current cycles, Mg dissolution equalized, but the Zn/Mg dissolution ratio increased for FE-processed extruded samples, suggesting less cathodic activation and better resistance to further pitting.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439175","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":"Effective multifunctional coatings with polyvinylpyrrolidone-enhanced ZIF-67 and zinc iron layered double hydroxide on microarc oxidation treated AZ31 magnesium alloy","authors":"Mohammad Aadil, Ananda Repycha Safira, Arash Fattah-alhosseini, Mohammad Alkaseem, Mosab Kaseem","doi":"10.1016/j.jma.2024.09.016","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.016","url":null,"abstract":"Modulating metal-organic framework's (MOF) crystallinity and size using a polymer, in conjunction with a high surface area of layered double hydroxide, yields an effective strategy for concurrently enhancing the electrochemical and photocatalytic performance. In this study, we present the development of an optimized nanocomposite, denoted as 0.5PVP/ZIF-67, developed on AZ31 magnesium alloy, serving as an efficient and durable multifunctional coating. This novel strategy aims to enhance the overall performance of the porous coating through the integration of microarc oxidation (MAO), ZnFe LDH backbone, and ZIF-67 formation facilitated by the addition of polyvinylpyrrolidone (PVP), resulting in a three-dimensional, highly efficient, and multifunctional material. The incorporation of 0.5 g of PVP proved to be effective in the size modulation of ZIF-67, which formed a corrosion-resistant top layer, improving the total polarization resistance (R_p = 8.20 × 10⁸). The dual functionality exhibited by this hybrid architecture positions it as a promising candidate for mitigating environmental pollution, degrading 97.93 % of Rhodamine B dye in 45 min. Moreover, the sample displayed exceptional degradation efficiency (96.17 %) after 5 cycles. This study illuminates the potential of nanocomposites as electrochemically stable and photocatalytically active materials, laying the foundation for the advancements of next-generation multifunctional frameworks.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439491","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":"Balancing strength and ductility of LA141 alloy with a micro-nano laminated structure","authors":"Xiaoyan Feng, Huize Deng, Xiaochun Ma, Zhenzhao Yang, Hui Zhang, Zhe Yu, Wenbin Liu, Jun Wang, Legan Hou, Bingyu Qian, Jianfeng Sun, Ruizhi Wu","doi":"10.1016/j.jma.2024.09.012","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.012","url":null,"abstract":"The laminated LA141 sheets were processed by the accumulative roll bonding (ARB). The interaction between dislocations and laminated interfaces, and the effect of bond interface spacing on the dynamic recrystallisation (DRX) behavior and mechanical properties were investigated. The results show that, with the increase of ARB cycles, physical metallurgical bonding is enhanced. MgLi₂Al nanophases and fragmented MgO particles are formed at the bond interface during ARB process, which has a significant positive effect on the interface bonding. With the increase of ARB cycles, the bond interface spacing decreases, DRX mode changes from continuous dynamic recrystallization (CDRX) to geometrical dynamic recrystallization (GDRX), and the Zener-pinning effect is enhanced, which facilitates the grain refinement strengthening. The bond interface can not only effectively hinder the movement of dislocations causing strengthening, but also absorb, reflect and transmission the dislocations causing the improvement of the ductility. The final LA141 alloy possesses a tensile strength of 247 MPa and an elongation of 16.6 %, of which is 93.0 % and 70.3 % higher than the as-cast alloy, respectively.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439518","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":"Mg anode interface engineering in KNO3 electrolyte with sodium 5-sulfosalicylate as an additive for enhanced performance of Mg-air batteries","authors":"Guanhua Lin, Yaqing Zhou, Sandrine Zanna, Antoine Seyeux, Philippe Marcus, Jolanta Światowska","doi":"10.1016/j.jma.2024.09.007","DOIUrl":"https://doi.org/10.1016/j.jma.2024.09.007","url":null,"abstract":"The Mg-air batteries face limitations with pronounced hydrogen evolution and low anodic utilization efficiency from Mg anodes in conventional NaCl electrolytes. The corrosion performance, surface composition, and discharge properties of commercial purity Mg anodes were thoroughly investigated in KNO₃ electrolytes with and without sodium 5-sulfosalicylate and compared to NaCl electrolyte. The addition of sodium 5-sulfosalicylate to KNO₃-based electrolyte results in efficient inhibition of H₂ evolution, consequently enhancing anodic utilization efficiency to 84 % and specific capacity to 1844 mAh/g, compared to NaCl (24 % and 534 mAh/g, respectively) under discharge condition of 10 mA/cm² in half cell. Furthermore, the chelating ability of sodium 5-sulfosalicylate can significantly improve the Mg surface dissolution kinetics and discharge product deposition rate at the Mg anode / electrolyte interface, yielding formation of a thinner discharge layer as confirmed by time-of-flight secondary ion mass spectrometry. The discharge voltage is increased to 1.60 V, compared to 1.35 V in KNO₃ at 0.5 mA/cm² in full cell. However, higher concentration of sodium 5-sulfosalicylate can accelerate Mg anode dissolution, impeding the improvement of anodic utilization efficiency, specific capacity, and energy density. Hence, determining optimal additive concentration and current density is crucial for enhancing the discharge properties of Mg-air batteries and mitigating excessive Mg dissolution in chloride-free electrolytes.","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":null,"pages":null},"PeriodicalIF":17.6,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142398061","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}