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Evaluation of various properties of ribbons of Mg-9%Al-3%Ca-based anode material for magnesium batteries produced by single-roll rapid solidification

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Keikinzoku/Journal of Japan Institute of Light Metals 2024年第10期74卷 455-462页

作者： Kirimoto, Yuichi Tsukeda, Tadayoshi Aida, Tetsuo Tabata, Hironobu Kurihara, Hideki Suzuki, Mayumi Haga, Toshio Department of Nano and Functional Material Science Graduate School of Science and Engineering for Education University of Toyama 3190 Gofuku Toyama-shi Toyama930-8555 Japan Faculty of Sustainable Design Academic Assembly University of Toyama Toyama-shi Toyama Japan Chuetsu Metal Works Co. Ltd. Nakaniikawa-gun Toyama Japan Saitama Industrial Technology Center Kawaguchi-shi Saitama Japan Department of Mechanical Systems Engineering Faculty of Engineering Toyama Prefectural University Imizu-shi Toyama Japan Department of Mechanical Engineering Osaka Institute of Technology Osaka-shi Osaka Japan

There is an urgent need to develop next-generation rechargeable batteries for a carbon-neutral society. In this context, our research team is focusing on magnesium, which is abundant in the earth's crust and inexpensive. Ribbons of Mg-9%Al-3%Ca, a magnesium alloy, were prepared as anode material for rechargeable batteries by a single-roll rapid solidification method. The fabricated ribbons were subjected to various manufacturing conditions, and various properties such as surface properties, microstructure, mechanical properties, and electrochemical activity of the fabricated ribbons were evaluated. As a result, it was found that a peripheral speed of 25 m/s and an injection pressure of 0.05 MPa or less were desirable to fabricate ribbons with good surface and mechanical properties. It was also confirmed that electrochemical activity contributes significantly to the orientation of magnesium and that production conditions with a peripheral velocity of 30 m/s or higher resulted in low electrochemical activity. © 2024 The Japan Institute of Light Metals.

关键词： Magnesium alloys

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Achieving high ductility and strength in magnesium alloy through cryogenic-hot forming

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Journal of Magnesium and Alloys 2023年第9期11卷 3130-3140页

作者： Kai Zhang Zhutao Shao Joseph Robson Yan Huang Jinghua Zheng Jun Jiang Department of Mechanical Engineering Imperial College LondonLondon SW72AZUK Department of Mechanical Engineering University College LondonLondon WC1E 7JEUK Department of Materials The University of ManchesterManchester M13BBUK BCAST Institute of Materials and ManufacturingBrunel University LondonUxbridge UB83PHUK College of Material Science and Engineering Nanjing University of Aeronautics and AstronauticsNanjing 211106China

Magnesium alloys are the lightest structural alloys and have attracted substantial research attention in the past two decades. However, their mechanical properties, including ductility and strength, are limited after forming due to the formation of coarse grains and strong texture. This study proposes and proves a new cryogenic-hot forming process concept. Cryogenic deformation is imposed before the hot deformation. The effect of the cryogenic step has been compared with a conventional direct hot deformation process. The mechanical properties, microstructure,and texture of both the novel and conventional process routes have been compared. The cryogenic-hot deformed sample exhibits the highest ductility and fracture strength(ultimate tensile strength: 321 MPa, ductility: 21%) due to effective grain refinement and texture weakening by cryogenically formed twin-twin interaction induced recrystallisation. The proposed cryogenic-hot forming process can be a potential innovative manufacturing method for producing high-performance magnesium components.

关键词： Magnesium alloys Dynamic recrystallisation Twinning Cryogenic deformation

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Ameliorating mechanical properties and reducing anisotropy of as-extruded Mg-1.0Sn-0.5Ca alloy via Al addition

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Progress in Natural science:materials International 2021年第5期31卷 722-730页

作者： Yanfu Chai Lei Shan Bin Jiang Huabao Yang Chao He Wenxing Hao Junjie He Qingshan Yang Ming Yuan Fusheng Pan School of Mechanical and Electrical Engineering Shaoxing University State Key Laboratory of Mechanical Transmissions College of Materials Science and Engineering Chongqing University College of Materials Science and Engineering Yunnan University School of Metallurgy and Material Engineering Chongqing University of Science and Technology

Effects of Al addition to a Mg–Sn–Ca ternary alloy on its microstructure and tensile properties after extrusion were studied via extrusion of Mg-1.0 Sn-0.5 Ca-x Al（x = 0, 0.8, 2.4 wt%） sheets and analysis of the extruded *** results showed that Al addition not only refined the grain size（from 9.8 ± 0.7 μm to 8.3 ± 0.4 μm and7.6 ± 0.5 μm） but also accelerated the generation of more second phase（from 0.98 to 1.72 and 4.32%）. Except for the CaMgSn and Mg2Ca in Mg-1.0Sn-0.5 Ca alloy, new phase（Mg, Al）2Ca appeared after Al addition. The addition of Al into Mg–Sn–Ca alloy induced the textural variation from an initially ED-split double-peaked texture to a weakened texture, i.e., divergent elliptical texture, due to the effect of particle stimulated nucleation. This eventually contributed to the improvement of mechanical anisotropy as well as the higher Hc value and *** the strain hardening behavior when tension along the TD, the prolonged stage II of Al-modified alloys was closely connected with the additional TD textural components, accelerating the activation of more basal slip. The decreased θIII0 in stage III of Al-modified alloys is beneficial to the grain refinement and the emergence of more second phase.

关键词： Mg–Sn–Ca alloy Al content Microstructure Texture mechanical anisotropy

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Effect of Impregnation of Liquid Sodium Silicate on Thermal Properties of Paper

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Palpu Chongi Gisul/Journal of Korea Technical Association of the Pulp and Paper Industry 2022年第6期54卷 60-67页

作者： Park, Gwon-Hui Kim, Younglae Cho, Byoung-Uk Department of Paper Science & Engineering College of Forest and Environmental Sciences Kangwon National University Korea Republic of Program of Paper Material Science & Engineering College of Forest and Environmental Sciences Kangwon National University Korea Republic of

Heat-resistant insulators are the core materials in fire doors and are directly related to people’s safety in a fire. Heverever, there needs to be a material that possesses heat resistance and insulation with reasonable production cost. To develop a core material for fire doors based on recycled paper, such as copy paper and linerboard, were impregnated with liquid sodium silicate and the effects of the sodium silicate content on the thermal properties of paper were investigated. It was observed that liquid soidum silicate can be used as a flame retardant when manufacturing fire door core materials. Imprenation of liquid sodium silicate delayed both glowing and burning temperatures along with an increased weight of residues after combustion over 750℃. Hence, it is possible to manufacture an incombustible material based on recycled papers by adding liquid sodium silicate and inorganic materials that do not themally decompose over 750℃. © 2022 Korean Technical Assoc. of the Pulp and Paper Industry. All rights reserved.

关键词： Impregnation

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engineering electrolyte additives for stable zinc-based aqueous batteries:Insights and prospects

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Journal of Energy Chemistry 2024年第11期98卷 311-326页

作者： Tao Liu Xusheng Dong Bin Tang Ruizheng Zhao Jie Xu Hongpeng Li Shasha Gao Yongzheng Fang Dongliang Chao Zhen Zhou Interdisciplinary Research Center for Sustainable Energy Science and Engineering(IRC4SE2) Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of EducationSchool of Chemical EngineeringZhengzhou UniversityZhengzhou 450001HenanChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsState Key Laboratory of Molecular Engineering of Polymers and School of Chemistry and MaterialsFudan UniversityShanghai 200433China College of Mechanical Engineering Yangzhou UniversityYangzhou 225127JiangsuChina

Zn-based aqueous batteries(ZABs) are gaining widespread popularity due to their low cost and high safety profile. However, the application of ZABs faces significant challenges, such as dendrite growth and parasitic reactions of metallic Zn anodes. Therefore, achieving high-energy–density ZABs necessitates addressing the fundamental thermodynamics and kinetics of Zn anodes. Various strategies are available to mitigate these challenges, with electrolyte additive engineering emerging as one of the most efficient and promising approaches. Despite considerable research in this field, a comprehensive understanding of the intrinsic mechanisms behind the high performance of electrolyte additives remains limited. This review aims to provide a detailed introduction to functional electrolyte additives and thoroughly explore their underlying mechanisms. Additionally, it discusses potential directions and perspectives in additive engineering for ZABs, offering insights into future development and guidelines for achieving high-performance ZABs.

关键词： Aqueous batteries Zn anodes Electrolyte additive engineering Interfacial chemistry Electrochemical mechanisms

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Computational Wear Prediction in Total Knee Replacements as a Function of Replacement Size 7

Computational Wear Prediction in Total Knee Replacements as ...

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7th International Conference on material Strength and Applied Mechanics, MSAM 2024

作者： Fekete, Gusztáv Máté, Márton Popa-Müller, Izolda Wang, Hai-Qiao Dilna, Natalia Nemoga, Karol Department of Material Science and Technology AUDI Hungária Faculty of automotive Engineering Széchenyi István University Gyor Hungary Department of Mechanical Engineering Faculty of Technical and Human Sciences Sapientia Hungarian University of Transylvania Marosvásárhely Romania School of Material Science and Engineering NingboTech University Ningbo China Institute of Mathematics Slovak Academy of Sciences Bratislava Slovakia

ISBN: (纸本)9781643685472

Wear is the third most important factor that restricts the longevity of total knee replacements (TKRs). Wear is particularly influenced by load, local kinematics between the contact surfaces and presumably by the geometry of the contact surfaces. This article investigated, by means of multibody models, how wear in total knee replacements is affected by the size of a TKR or by TKR-related geometric parameters during gait motion. As a result, it has been established that wear rate increases linearly as a function of TKR size, while the impact of TKR-related geometric parameters can be described by linear or quadratic functions. One can conclude that the newly introduced dimensionless parameters can provide guidelines to effectively minimize wear in TKRs. © The Author(s), 2024.

关键词： Knee prostheses

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Layer-Wise Melt Pool Temperature Evolution in Laser Powder Bed Fusion: An Experimental Study Using A Single Camera Based Twowavelength Imaging Pyrometry 17

Layer-Wise Melt Pool Temperature Evolution in Laser Powder B...

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ASME 2022 17th International Manufacturing science and engineering Conference, MSEC 2022

作者： Vallabh, Chaitanya Krishna Prasad Hinnebusch, Shawn To, Albert C. Zhao, Xiayun Department of Mechanical Engineering and Material Science University of Pittsburgh PittsburghPA United States

ISBN: (纸本)9780791885819

In metal additive manufacturing (AM) the layer-wise thermal history is crucial for its effect on the print part properties, such as, microstructure, porosity, and mechanical strength. Literature studies for evaluating the part thermal history are typically based on in-situ infrared thermography and thermal modeling. However, the effect of melt pool temperature on the part thermal history has not been widely studied. In this preliminary work, for the first time we present a large and comprehensive in-situ monitored, layer-wise melt pool temperature evolution data for laser powder bed fusion (LPBF) AM. The melt pool temperature is evaluated using an in-house Single Camera Two-Wavelength Imaging Pyrometry (STWIP) system. The melt pool temperature evolution was evaluated for three different prints with different inter-layer-Times and print heights. The melt pool temperature history trends presented in this work are in agreement with literature studies on partthermal histories. The LPBF process signatures from our STWIP system can help develop more accurate thermal models with the melt pool temperature as the input and the unique capability of the STWIP system to acquire and analyze large amounts data facilitates the development of machine learning models for estimating part properties based on the process signatures. © Proceedings of ASME 2022 17th International Manufacturing science and engineering Conference, MSEC 2022.

关键词： Pyrometry

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Optimising degradation and mechanical performance of additively manufactured biodegradable Fe–Mn scaffolds using design strategies based on triply periodic minimal surfaces

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Smart materials in Medicine 2024年第1期5卷 127-139页

作者： Dargusch, Matthew S. Soro, Nicolas Demir, Ali Gokhan Venezuela, Jeffrey Sun, Qiang Wang, Yuan Abdal-hay, Abdalla Alali, Aya Q. Ivanovski, Saso Previtali, Barbara Kent, Damon School of Mechanical and Mining Engineering The University of Queensland Advanced Engineering Building Bld 49 Staff House Rd St LuciaQLD4072 Australia Department of Mechanical Engineering Politecnico di Milano Via La Masa 1 Milan20156 Italy School of Dentistry The University of Queensland Herston Campus 4072 Australia Department of Engineering Materials and Mechanical Design Faculty of Engineering South Valley University Qena83523 Egypt Faculty of Industry and Energy Technology Mechatronics Technology Program New Cairo Technological University New Cairo - Fifth Settlement Cairo11835 Egypt School of Science Technology and Engineering University of the Sunshine Coast Maroochydore BCQLD4558 Australia

Additively manufactured lattices based on triply periodic minimal surfaces (TPMS) have attracted significant research interest from the medical industry due to their good mechanical and biomorphic properties. However, most studies have focussed on permanent metallic implants, while very little work has been undertaken on manufacturing biodegradable metal lattices. In this study, the mechanical properties and in vitro corrosion of selective laser melted Fe–35%Mn lattices based on gyroid, diamond and Schwarz primitive unit-cells were comprehensively evaluated to investigate the relationships between lattice type and implant performance. The gyroid-based lattices were the most readily processable scaffold design for controllable porosity and matching the CAD design. mechanical properties were influenced by lattice geometry and pore volume. The Schwarz lattices were stronger and stiffer than other designs with the 42% porosity scaffold exhibiting the highest combination of strength and ductility, while diamond and gyroid based scaffolds had lower strength and stiffness and were more plastically compliant. The corrosion behaviour was strongly influenced by porosity, and moderately influenced by geometry and geometry-porosity interaction. At 60% porosity, the diamond lattice displayed the highest degradation rate due to an inherently high surface area-to-volume ratio. The biodegradable Fe–35Mn porous scaffolds showed a good cytocompatibility to primary human osteoblasts cells. Additive manufacturing of biodegradable Fe–Mn alloys employing TPMS lattice designs is a viable approach to optimise and customise the mechanical properties and degradation response of resorbable implants toward specific clinical applications for hard tissue orthopaedic repair. © 2023 The Authors

关键词： Porosity

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Recent advances in machine learning-assisted fatigue life prediction of additive manufactured metallic materials:A review

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Journal of materials science & Technology 2024年第31期198卷 111-136页

作者： H.Wang S.L.Gao B.T.Wang Y.T.Ma Z.J.Guo K.Zhang Y.Yang X.Z.Yue J.Hou H.J.Huang G.P.Xu S.J.Li A.H.Feng C.Y.Teng A.J.Huang L.-C.Zhang D.L.Chen Interdisciplinary Centre for Additive Manufacturing(ICAM) School of Materials and ChemistryUniversity of Shanghai for Science and TechnologyShanghai 200093China Shi-changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering Tongji UniversityShanghai 201804China AVIC Aero-Polytechnology Establishment Beijing 100028China Department of Material Science and Engineering Monash UniversityClaytonVIC 3800Australia School of Engineering Edith Cowan UniversityPerthWA 6027Australia Department of Mechanical and Industrial Engineering Toronto Metropolitan University(formerly Ryerson University)TorontoOntario M5B 2K3Canada

Additive manufacturing features rapid production of complicated shapes and has been widely employed in biomedical,aeronautical and aerospace ***,additive manufactured parts generally exhibit deteriorated fatigue resistance due to the presence of random defects and anisotropy,and the prediction of fatigue properties remains *** this paper,recent advances in fatigue life prediction of additive manufactured metallic alloys via machine learning models are *** on artificial neural network,support vector machine,random forest,etc.,a number of models on various systems were proposed to reveal the relationships between fatigue life/strength and defect/microstructure/*** the success,the predictability of the models is limited by the amount and quality of ***,the supervision of physical models is pivotal,and machine learning models can be well enhanced with appropriate physical ***,future challenges and directions for the fatigue property prediction of additive manufactured parts are discussed.

关键词： Fatigue Additive manufacturing Metallic alloys Machine learning

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Mechanism of subsurface microstructural fatigue crack initiation during high and very-high cycle fatigue of advanced bainitic steels

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Journal of materials science & Technology 2022年第13期108卷 142-157页

作者： Guhui Gao Rong Liu Yusong Fan Guian Qian Xiaolu Gui R.D.K.Misra Bingzhe Bai Material Science&Engineering Research Center School of MechanicalElectronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China State Key Laboratory of Nonlinear Mechanics(LNM) Institute of MechanicsChinese Academy of SciencesBeijing 100190China Laboratory for Excellence in Advanced Steel Research Department of MetallurgicalMaterials and Biomedical EngineeringUniversity of Texas at El Paso500W University AvenueEl PasoTX 79968USA Key Laboratory of Advanced Material School of Material Science and EngineeringTsinghua UniversityBeijing 100084China

Advanced bainitic steels with the multiphase structure of bainitic ferrite,retained austenite and martensite exhibit distinctive fatigue crack initiation behavior during high cycle fatigue/very high cycle fatigue(HCF/VHCF)*** subsurface microstructural fatigue crack initiation,referred to as“non-inclusion induced crack initiation,NIICI”,is a leading mode of failure of bainitic steels within the HCF/VHCF *** this regard,there is currently a missing gap in the knowledge with respect to the cyclic response of multiphase structure during VHCF failure and the underlying mechanisms of fatigue crack initiation during *** address this aspect,we have developed a novel approach that explicitly identifies the knowledge gap through an examination of subsurface crack initiation and interaction with the local *** was accomplished by uniquely combining electron microscopy,three-dimensional confocal microscopy,focused ion beam,and transmission Kikuchi ***,the study indicated that there are multiple micro-mechanisms responsible for the NIICI failure of bainitic steels,including two scenarios of transgranular-crack-assisted NIICI and two scenarios of intergranular-crack-assisted NIICI,which resulted in the different distribution of fine grains in the crack initiation *** fine grains were formed through fragmentation of bainitic ferrite lath caused by localized plastic deformation or via local continuous dynamic recrystallization because of repeated interaction between slip bands and prior austenite grain *** formation of fine grains assisted the advancement of small *** important aspect discussed is the role of retained austenite(RA)during cyclic loading,on crack initiation and propagation in terms of the morphology,distribution and stability of RA,which determined the development of localized cyclic plastic deformation in multiphase structure.

关键词： Microstructure Advanced bainitic steels Very high cycle fatigue Mechanism Retained austenite

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