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Symmetry breaking in spoke double-ring structures formed by buckling-guided 3D assembly

Theoretical & Applied Mechanics Letters 2025年第1期15卷 25-31页

作者： Xiaoran Yang Jianzhong Zhao Alexander Hartmaier Yonggang Huang Yihui Zhang Applied Mechanics Laboratory Department of Engineering MechanicsTsinghua UniversityBeijing 100084China Laboratory of Flexible Electronics Technology Tsinghua UniversityBeijing 100084China Interdisciplinary Center for Advanced Materials Simulation(ICAMS) Ruhr-Universität BochumBochum 44801Germany Department of Civil and Environmental Engineering Northwestern UniversityEvanstonIL 60208USA Department of Mechanical Engineering Northwestern UniversityEvanstonIL 60208USA Department of Materials Science and Engineering Northwestern UniversityEvanstonIL 60208USA

The buckling-guided three-dimensional(3D)assembly method has arisen increasing attention for its advantages in forming complex 3D architectures with a rich diversity of geometric shapes in a broad spectrum of inorganic functional *** an assembly method relies on the controlled lateral bucking of a 2D precursor structure integrated with a pre-stretched substrate at selective *** the assembly process,the preservation or break-ing of rotational symmetry is crucial for understanding the mechanism of 2D-to-3D geometric ***,we present a fundamental study on the rotational symmetry of 3D spoke double-ring structures formed through buckling-guided *** energetic method is introduced to analyze the rotational symmetry and to understand the symmetry-breaking *** symmetry-breaking phenomenon is validated by experi-ments and finite element analyses(FEA).Phase diagrams of the deformation mode are established to shed light on the influences of various geometric parameters(e.g.,initial rotational symmetry order,radius ratio,and lo-cation of bonding sites).This work offers new insights into the underlying mechanism of 2D-to-3D geometric transformation in ribbon-type structures formed by compressive buckling.

关键词： Buckling-guided 3D assembly Rotational symmetry Post-buckling Instability

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Solidification modes and delta-ferrite of two types of 316L stainless steels:a combination of as-cast microstructure and HT-CLSM research

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Journal of Iron and Steel Research International 2025年第2期32卷 426-436页

作者： Yang Wang Chao Chen Xiao-yu Yang Zheng-rui Zhang Jian Wang Zhou Li Lei Chen Wang-zhong Mu College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024ShanxiChina Department of Materials Science and Engineering KTH Royal Institute of TechnologyStockholm 10044Sweden College of Artificial Intelligence and Big Data for Medical Sciences Shandong First Medical University and Shandong Academy of Medical SciencesJinan 250117ShandongChina College of Mechanical Engineering Taiyuan University of TechnologyTaiyuan 030024ShanxiChina Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education) Northeastern UniversityShenyang 110819LiaoningChina

In 316L austenitic stainless steel,the presence of ferrite phase severely affects the non-magnetic properties.316L austenitic stainless steel with low-alloy type(L-316L)and high-alloy type(H-316L)has been *** microstructure and solidification kinetics of the two as-cast grades were in situ observed by high temperature confocal laser scanning microscopy(HT-CLSM).There are significant differences in the as-cast microstructures of the two 316L stainless steel *** L-316L steel,ferrite morphology appears as the short rods with a ferrite content of 6.98%,forming a dual-phase microstructure consisting of austenite and ***,in H-316L steel,the ferrite appears as discontinuous network structures with a content of 4.41%,forming a microstructure composed of austenite and sigma(σ)*** alloying elements in H-316L steel exhibit a complex distribution,with Ni and Mo enriching at the austenite grain ***-CLSM experiments provide the real-time observation of the solidification processes of both 316L specimens and reveal distinct solidification modes:L-316L steel solidifies in an FA mode,whereas H-316L steel solidifies in an AF *** differences result in ferrite and austenite predominantly serving as the nucleation and growth phases,*** solidification mode observed by experiments is similar to the thermodynamic calculation *** L-316L steel solidified in the FA mode and showed minimal element segregation,which lead to a direct transformation of ferrite to austenite phase(δ→γ)during phase transformation after ***,the H-316L steel solidified in the AF mode and showed severe element segregation,which lead to Mo enrichment at grain boundaries and transformation of ferrite into sigma and austenite phases through the eutectoid reaction(δ→σ+γ).

关键词： 316L austenitic stainless steel As-cast microstructure High-temperature confocal laser scanning microscopy Solidification mode Ferrite Characterization

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Correction: materials laboratories of the future for alloys, amorphous, and composite materials (MRS Bulletin, (2025), 50, 2, (190-207), 10.1557/s43577-024-00846-y)

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MRS Bulletin 2025年 1-2页

作者： Banerjee, Sarbajit Meng, Y. Shirley Minor, Andrew M. Zhang, Minghao Zaluzec, Nestor J. Chan, Maria K.Y. Seidler, Gerald McComb, David W. Agar, Joshua Mukherjee, Partha P. Melot, Brent Chapman, Karena Guiton, Beth S. Klie, Robert F. McCue, Ian D. Voyles, Paul M. Robertson, Ian Li, Ling Chi, Miaofang Destino, Joel F. Devaraj, Arun Marquis, Emmanuelle A. Segre, Carlo U. Liu, Huinan H. Yang, Judith C. Momeni, Kasra Misra, Amit Abdolrahim, Niaz Medvedeva, Julia E. Cai, Wenjun Sehirlioglu, Alp Dizbay-Onat, Melike Mehta, Apurva Graham-Brady, Lori Maruyama, Benji Rajan, Krishna Warner, Jamie H. Taheri, Mitra L. Kalinin, Sergei V. Reeja-Jayan, B. Schwarz, Udo D. Simon, Sindee L. Brown, Craig M. Department of Chemistry and Department of Materials Science & Engineering Texas A & M University College Station United States Pritzker School of Molecular Engineering The University of Chicago Chicago United States Department of Materials Science & Engineering University of California Berkeley Berkeley United States National Center for Electron Microscopy Molecular Foundry Lawrence Berkeley National Laboratory Berkeley United States Center for Nanoscale Materials Argonne National Laboratory Lemont United States Department of Physics University of Washington Seattle United States Department of Materials Science & Engineering The Ohio State University Columbus United States Department of Mechanical Engineering and Mechanics Drexel University Philadelphia United States School of Mechanical Engineering Purdue University West Lafayette United States Department of Chemistry University of Southern California Los Angeles United States Department of Chemistry Stony Brook University The State University of New York Stony Brook United States Department of Chemistry University of Kentucky Lexington United States Department of Physics University of Illinois at Chicago Chicago United States Department of Materials Science & Engineering Northwestern University Evanston Bangladesh Department of Materials Science & Engineering University of Wisconsin–Madison Madison United States Department of Materials Science and Engineering University of Pennsylvania Philadelphia United States Department of Mechanical Engineering and Materials Science Duke University Durham United States Department of Chemistry Creighton University Omaha United States Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland United States Department of Materials Science & Engineering University of Michigan–Ann Arbor Ann Arbor United States Department of Physics Illinois Institute of Technology Chicago United States Department of Bioengineering and the Mater

This article was updated to correct Minghao Zhang’s affiliation from "Pritzker School of Molecular engineering, The University of Chicago, Chicago, USA" to "Pritzker School of Molecular engineering, The University of Chicago, Chicago, USA;Argonne National Laboratory, Lemont, USA." Argonne National Laboratory was left off the original publication. © The Author(s) 2025.

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WE43 Surface Composite with Oxide Particles by Friction Stir Processing

WE43 Surface Composite with Oxide Particles by Friction Stir...

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Magnesium Technology Symposium, 2025, held as part of the TMS Annual Meeting and Exhibition, TMS 2025

作者： Ghauri, Hamza Faisal Shunmugasamy, Vasanth C. Mansoor, Bilal Department of Materials Science and Engineering Texas A&M University College StationTX77840 United States Mechanical Engineering Program Texas A&M University at Qatar Doha Qatar Department of Mechanical Engineering Texas A&M University College StationTX77840 United States

ISBN: (纸本)9783031810602

WE43WE43 has superior mechanical and corrosionCorrosion performance compared to other magnesium alloysMagnesium alloy but surface treatments, mechanical processes, and heat treatments to further enhance its properties continue to be explored. Here we present our preliminary findings about a WE43WE43surface compositeSurface composite with oxide particles produced using friction stir processingFriction stir processing. Significant grain refinement, precipitate redistribution, and increase in microhardness by 25% were achieved in processed regions compared to base material. CorrosionCorrosion testing in 0.9% NaCl solution revealed that the FSP-treated material exhibited a 196% lower Icorr and a more stable open circuit potential (OCP) than cast WE43WE43, suggesting superior corrosion resistanceCorrosion resistance. While the findings promise suitability of the processed alloy for a more intensive range of operating conditions than the cast alloy, further work to study the effect of the size, volume, and composition of the oxide reinforcements needs to be carried out. © The Minerals, Metals & materials Society 2025.

关键词： Grain refinement

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锡基硫化物电催化剂中强且均匀的Sn–S键促进CO2到甲酸盐的高效转化（英文）

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science China materials 2025年第5期68卷 1602-1610页

作者：侯国禹崔洪花李亿程刘亚杨振艺赵明罗中箴邹志刚张玉 School of Mechanical and Power Engineering East China University of Science and Technology Laboratory of Eco-materials Advanced Technology College of Materials Science and EngineeringFuzhou University Department of Materials Science and Engineering National University of Singapore Eco-materials and Renewable Energy Research Center College of Engineering and Applied SciencesNanjing University

电化学CO2还原反应（CO2RR）是缓解全球CO2过量排放的有效途径之一.相比于单纯的金属催化剂,金属硫化物普遍具有更高的甲酸盐选择性及活性,因此被认为是一类独特的CO2RR电催化剂.然而,该类催化剂在负电位易发生组分还原,从而导致S元素... 详细信息

电化学CO2还原反应（CO2RR）是缓解全球CO2过量排放的有效途径之一.相比于单纯的金属催化剂,金属硫化物普遍具有更高的甲酸盐选择性及活性,因此被认为是一类独特的CO2RR电催化剂.然而,该类催化剂在负电位易发生组分还原,从而导致S元素大量溢出.在此,我们合成了一系列具有高结晶度的硫化锡（SnS,Sn2S3和SnS2）作为模型催化剂,揭示了Sn–S键强在原子构型上的分布对甲酸盐生成选择性及活性的影响规律.其中,SnS2具有较强且均匀分布的Sn–S键,能够有效抑制S溢出,形成有利于CO2RR的Sn/SnS2异质界面;而SnS的Sn–S键强较弱,导致其在CO2RR过程中快速还原成惰性金属Sn.而具有混合键强的Sn2S3则从最弱的Sn–S键开始断裂,引发了更加快速的组分还原,表现出较差的CO2RR性能.因此,S nS2表现出最高的甲酸盐法拉第效率9 3.8%±0.5 9%(-1.0VRHE)及最高的偏电流密度(195.3 mA cm-2,-1.2 VRHE).该工作为深入理解金属基硫化物中金属-硫键强及其分布对CO2RR制甲酸盐的影响提供一定的科学依据.

关键词： CO2 reduction tin sulfides bond strength formate S loss

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Development of Interpenetrating Phase Structure AZ91/Al_(2)O_(3)Composites with High Stiffness,Superior Strength and Low Thermal Expansion Coefficient

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Acta Metallurgica Sinica(English Letters) 2025年第2期38卷 245-258页

作者： Zhiqing Chen Zhixian Zhao Yiqiang Hao Xiaoling Chen Liping Zhou Jingya Wang Tao Ying Bin Chen Xiaoqin Zeng National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite Shanghai Jiao Tong UniversityShanghai 200240China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Mechanical Engineering the University of Hong KongPok Fu Lam RoadHong KongChina

Mg alloys have the defects of low stiffness,low strength,and high coefficient of thermal expansion(CTE).The composites strategy and its architecture design are effective approaches to improve the comprehensive performance of materials,but the processing difficulty,especially in ceramics forming,limits the control and innovation of material ***,combined with 3D printing and squeeze infiltration technology,two precisely controllable architectures of AZ91/Al_(2)O_(3)interpenetrating phase composites(IPC)with ceramic scaffold were *** interface,properties and impact of different architecture on IPC performance were studied by experiments and finite element *** metallurgical bonding of the interface was realized with the formation of MgAl_(2)O_(4)reaction *** IPC with 1 mm circular hole scaffold(1C-IPC)exhibited significantly improved elastic modulus of 164 GPa,high compressive strength of 680 MPa,and good CTE of 12.91×10^(-6)K^(−1),which were 3.64 times,1.98 times and 55%of the Mg matrix,*** elastic modulus,compressive strength,and CTE were superior to the vast majority of Mg alloys and Mg based *** reinforcement and matrix were bicontinuous and interpenetrating each other,which played a critical role in ensuring the potent strengthening effect of the Al_(2)O_(3)reinforcement by efficient load *** the same volume fraction of reinforcements,compared to IPC with 1 mm hexagonal hole scaffold(1H-IPC),the elastic modulus and compressive strength of 1C-IPC increased by 15%and 28%,respectively,which was due to the reduced stress concentration and more uniform stress distribution of *** shows great potential of architecture design in improving the performance of *** study provides architectural design strategy and feasible preparation method for the development of high performance materials.

关键词： Interpenetrating phase composites Al_(2)O_(3)/Mg composites Interface Elastic modulus Compressive strength Coefficient of thermal expansion(CTE)

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La-substituted W-type barium-nickel ferrites for tunable and high-performance electromagnetic wave absorption

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International Journal of Minerals,Metallurgy and materials 2025年第3期32卷 645-656页

作者： Long Wang Jiurong Liu Shenghui Xie Yanli Deng Zhou Wang Shanyue Hou Shengying Yue Gang Wang Na Wu Zhihui Zeng Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061China Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education and International Center for Dielectric ResearchSchool of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China Army Engineering University of PLA College of Field Engineering Nanjing 210007China Laboratory for Multiscale Mechanics and Medical Science State Key Laboratory for Strength and Vibration of Mechanical StructuresSchool of AerospaceXi’an Jiaotong UniversityXi’an 710049China Department of Electrical and Computer Engineering Beckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana-ChampaignUrbana 61801USA School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100China

W-type barium-nickel ferrite(BaNi_(2)Fe_(16)O_(27))is a highly promising material for electromagnetic wave(EMW)absorption be-cause of its magnetic loss capability for EMW,low cost,large-scale production potential,high-temperature resistance,and excellent chemical ***,the poor dielectric loss of magnetic ferrites hampers their utilization,hindering enhancement in their EMW-absorption *** efficient strategies that improve the EMW-absorption performance of ferrite is highly desired but re-mains ***,an efficient strategy substituting Ba^(2+)with rare earth La^(3+)in W-type ferrite was proposed for the preparation of novel La-substituted ferrites(Ba_(1-x)LaxNi_(2)Fe_(15.4)O_(27)).The influences of La^(3+)substitution on ferrites’EMW-absorption performance and the dissipative mechanism toward EMW were systematically explored and ***^(3+)efficiently induced lattice defects,enhanced defect-induced polarization,and slightly reduced the ferrites’bandgap,enhancing the dielectric properties of the ***^(3+)also enhanced the ferromagnetic resonance loss and strengthened magnetic *** effects considerably improved the EMW-absorption perform-ance of Ba_(1-x)LaxNi_(2)Fe_(15.4)O_(27)compared with pure W-type *** x=0.2,the best EMW-absorption performance was achieved with a minimum reflection loss of-55.6 dB and effective absorption bandwidth(EAB)of 3.44 GHz.

关键词： electromagnetic wave absorption W-type barium ferrite rare earth dielectric

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Shape Memory Alloy Reinforced Self-Healing Aluminum Composites for Energy Conservation

Shape Memory Alloy Reinforced Self-Healing Aluminum Composit...

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Advances in Sustainable Composites: Eco-friendly Solutions and Applications was part of the 154th Annual Meeting and Exhibition, TMS 2025

作者： Bellah, Masum Srivastava, Vaibhav Nosonovsky, Michael Church, Benjamin Rohatgi, Pradeep Department of Mechanical Engineering University of Wisconsin-Milwaukee MilwaukeeWI United States Department of Materials Science and Engineering University of Wisconsin-Milwaukee MilwaukeeWI United States

ISBN: (纸本)9783031810565

engineering components are frequently discarded after they develop cracks, requiring replacement with new high embodied energy components. In this paper, self-healingSelf-healingaluminumAluminum matrix compositesComposite with the capability of self-healing are discussed. These compositesComposite can self-heal cracks, thereby extending component life and conserving energy by reducing the need for replacements. Research on aluminumAluminum alloy compositesComposite reinforced by shape memory alloys is presented, including the narrowing and closing of cracks, the recovery of strength, and shape restoration in these alloys. The microstructures of these self-healingSelf-healing alloy compositesComposite and the mechanics and kinetics of self-healing, including the rate of crack narrowing and closing and the rate of shape restoration, are also reportedBiomimetics. © The Minerals, Metals & materials Society 2025.

关键词： Cracks

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Unassisted photoelectrochemical CO_(2)reduction by employingⅢ-Ⅴphotoelectrode with 15%solar-to-fuel efficiency

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Carbon Energy 2025年第3期7卷 1-10页

作者： Karthik Peramaiah Purushothaman Varadhan Vinoth Ramalingam Bilawal Khan Pradip Kumar Das Hao Huang Hui-Chun Fu Xiulin Yang Vincent Tung Kuo-Wei Huang Jr-Hau He Chemistry Program Center for Renewable Energy and Storage Technologies(CREST)and Division of Physical Science and EngineeringKing Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia Institute of Sustainability for Chemicals Energyand Environment(ISCE2)Agency for ScienceTechnologyand Research(A*STAR)Singapore School of Computing Engineering and TechnologyRobert Gordon UniversityAberdeenUK Department of Materials Science and Engineering City University of Hong KongKowloonSARHong KongChina Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical SciencesGuangxi Normal UniversityGuilinChina Department of Chemical System and Engineering University of TokyoTokyoJapan

Solar-driven carbon dioxide reduction reaction(CO_(2)RR)provides an oppor tunity to produce value-added chemical feedstocks and ***,achieving efficient and stable photoelectrochemical(PEC)CO_(2)RR into selec tive products is challenging owing to the difficulties associated with the optical and the electrical configuration of PEC devices and electrocatalyst ***,we construct an efficient,concentrated sunlight-driven CO_(2)RR setup consisting of InGaP/GaAs/Ge triple-junction cell as a photoanode and oxide-derived Au(Ox-Au)as a cathode to perform the unassisted PEC CO_(2)*** one-sun illumination,a maximum operating current density of 11.5 mA cm^(-2) with an impressive Faradaic efficiency(FE)of~98%is achieved for carbon monoxide(CO)production,leading to a solar-to-fuel conversion efficiency of~15%.Under concentrated intensity of 10 sun,the photoanode records a maximum current density of~124 mAcm^(-2) and maintains~60%of FE for CO *** results demonstrate crucial advancements in usingⅢ-Ⅴbased photoanodes for concentrated PEC CO_(2)RR.

关键词： photoelectrochemical oxide derived Au concentrated sunlight selec tive products III V photoelectrode pec devices CO reduction solar fuel efficiency

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Solid solution dependence of the deformation behavior in Mg-xZn(x=0,1,2 wt%)alloys:In-situ neutron diffraction and crystal plasticity modeling

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Journal of Magnesium and Alloys 2025年第2期13卷 823-838页

作者： Huai Wang Soo Yeol Lee You Sub Kim Huamiao Wang Wanchuck Woo Ke An School of Mechanical and Automotive Engineering Qingdao University of TechnologyQingdao 266520China Department of Materials Science and Engineering Chungnam National UniversityDaejeon 34134Republic of Korea Shanghai Institute of Applied Mathematics and Mechanics School of Mechanics and Engineering ScienceShanghai UniversityShanghai 200072China Neutron Science Division Korea Atomic Energy Research InstituteDaejeon 34057Republic of Korea Neutron Scattering Division Oak Ridge National LaboratoryOak Ridge 37831United States

The effects of solid solution on the deformation behavior of binary Mg-xZn(x=0,1,2 wt%)alloys featuring a designated texture that enables extension twinning under tension parallel to the basal pole in most grains,were investigated using in-situ neutron diffraction and the EVPSC-TDT *** diffraction was used to quantitatively track grain-level lattice strains and diffraction intensity changes(related to mechanical twinning)in differently oriented grains of each alloy during cyclic tensile/compressive *** measurements were accurately captured by the *** stress-strain curves of Mg-1 wt%Zn and Mg-2 wt%Zn alloys show as-expected solid solution strengthening from the addition of Zn compared to pure *** macroscopic yielding and hardening behaviors are explained by alternating slip and twinning modes as calculated by the *** solid solution's influence on individual deformation modes,including basal〈a〉slip,prismatic〈a〉slip,and extension twinning,was then quantitatively assessed in terms of activity,yielding behavior,and hardening response by combining neutron diffraction results with crystal plasticity *** Mg-1 wt%Zn alloy displays distinct yielding and hardening behavior due to solid solution softening of prismatic〈a〉***,the dependence of extension twinning,in terms of the twinning volume fraction,on Zn content exhibits opposite trends under tensile and compressive loadings.

关键词： Magnesium alloy Deformation behavior Solid solution Crystal plasticity modeling Neutron diffraction

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