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A review on microstructure design, processing, and strengthening mechanism of high-strength titanium alloys

Progress in Natural Science: Materials International 2025年第2期35卷 258-277页

作者： Xu, Guanghua Zhao, Xinbao Xia, Wanshun Yue, Quanzhao Zheng, Zheshuai Gu, Yuefeng Zhang, Ze Institute of Superalloys Science and Technology School of Materials Science and Engineering Zhejiang University Hangzhou310027 China State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and Engineering Zhejiang University Hangzhou310027 China

High-strength titanium alloys (HS-TAs), particularly those with an ultimate tensile strength exceeding 1100 MPa, play a crucial role in aerospace and other advanced engineering fields. However, faced with the continuously evolving industrial landscape and increasingly complex application environments, research and development of HS-TAs are encountering unprecedented challenges. This paper provides a review of significant research advancements in the field of HS-TAs in recent years, with a special focus on the latest achievements in microstructural design, processing technology, and strengthening mechanisms. Initially, the paper offers an integrated assessment of how alloying and non-alloying elements precisely control the distribution and morphology of α and β phases at the microscale, and their impact on the mechanical properties of titanium alloys. Subsequently, from the perspectives of plastic deformation and microstructure regulation, the paper delves into the contributions of various mechanisms such as solid-solution strengthening, grain boundary strengthening, and precipitation strengthening, to the enhancement of high-strength titanium alloy performance. Additionally, the article compares and analyzes the effects of different heat treatments and mechanical processing techniques on the microstructure and overall performance of HS-TAs. Finally, the paper presents future research directions and potential applications of these alloys in some key areas, aiming to provide a theoretical foundation and practical guidance for the development of advanced structural materials with high strength and optimized ductility. © 2025 Chinese Materials Research Society

关键词： Titanium alloys

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Role of NH4+/H3O+ on the Na+ storage performance for aqueous-synthesized Na3(VOPO4)2F cathode materials and their removal

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Journal of Energy Chemistry 2025年 107卷 612-621页

作者： Yang, Xiaoping Zhang, Yibo Wang, Xianshu Li, Wenjiao Yin, Xiangshao Yao, Jun Jiang, Weihong Duan, Jianguo Zhang, Yingjie Xu, Lin Wang, Ding National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan Province Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Yunnan Kunming650093 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Hubei Wuhan430070 China Hubei Xiangyang441000 China Co. Ltd. High Technology Industrial Development Zone Henan Zhengzhou450001 China

The aqueous preparation of Na3(VOPO4)2F cathode material with low cost and good structural stability has attracted extensive attention for advancing sodium-ion batteries (SIBs). However, the inclusive heterogeneous cations incorporated into the material lattice, dominated by coordination chemistry, are always overlooked. Herein, the embroiled NH4+/H3O+ cations in the Na3(VOPO4)2F lattice have been first disclosed during aqueous co-precipitation. It involves the electrostatic interactions between hydrogen protons (NH4+/H3O+) and electronegative oxygen atoms (V=O and V–O–P groups), which induces the terrible Na+-storage performance, as demonstrated by multiple characterizations. Followingly, the very-facile operation, i.e. heat treatment, has been raised to remove NH4+/H3O+ cations and then achieved high-performance Na3(VOPO4)2F. Therefore, the Na3(VOPO4)2F||Na cell contributes to the significantly improved discharge capacity (129.7 mAh g−1) and voltage plateau from 3.63 to 3.87 V (vs. Na/Na+) at 0.2 C. The ultrahigh capacity retentions of 93.7% and 76.7% after 1000 and 3500 cycles at 1 and 20 C rates under 25 °C are harvested, respectively, as well as high/low-temperature performances and rate capability. Eventually, the as-assembled Na3(VOPO4)2F||hard carbon full-cell delivers excellent long-term cycling stability over 1000 cycles with 97.5% retention at 3 C. These emphasize the high-efficacy synthesis of Na3(VOPO4)2F and provide insights into the aqueous co-precipitation for the development of materials used in SIBs. © 2025 Science Press

关键词： Sodium-ion batteries

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Crystallographic micro-mechanism of faceted crack initiation in near-αtitanium alloy Ti6321 under room-temperature fatigue and dwell fatigue loadings

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材料科学技术（英文版） 2025年第2期205卷 109-126页

作者： Wenyuan Zhang Qiaonan Shu Jiangkun Fan Panpan Fan Xiangyi Xue Peng Jiang Minjie Lai Bing Tang Zhiqian Liao Hongchao Kou Jinshan Li State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072China National & Local Joint Engineering Research Center for Precision Thermoforming Technology of Advanced Metal Materials Xi'an 710072China Chongqing Innovation Center Northwestern Polytechnical UniversityChongqing 401135China Luoyang Ship Material Research Institute Luoyang 471000China

Crack initiation mechanism of dwell fatigue has always been a key problem in rationalizing the dwell effect,and it is not completely understood *** study conducted stress-controlled low-cycle fatigue and dwell fatigue tests on Ti-6Al-3Nb-2Zr-1Mo alloy with bimodal microstructure to reveal its microstruc-tural characteristics and crack initiation *** study demonstrated that the faceted primaryα nodules located near the specimen surface acted as crack initiation sites during both fatigue and dwell fatigue *** trace analysis revealed that faceted cracking occurred at(0001)basal plane with the maximum Schmid factor value through a special cracking mode referred to as(0001)twist boundary *** criteria of parameters C1 and C2 were proposed based on experimental observation and molecular dynamics simulations,which well identify candidates for(0001)twist boundary crack *** demonstrated that grain pairs combining a moderately high Schmid factor for basal slip and a well-orientated Burgers vector in the out-of-surface plane was the preferable location for surface(0001)twist-boundary crack initiation,and grain pairs combining a high Schmid factor for basal slip and a high normal stress on basal plane are perfect candidates for subsurface *** on this,phenomeno-logical models are proposed to explain the surface(0001)twist-boundary cracking mechanism from the perspective of surface extrusion-intrusion-induced micro-notches.

关键词： Titanium alloy Dwell fatigue Facet Fatigue crack initiation Crystallographic orientation

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Understanding the iodine electrochemical behaviors in aqueous zinc batteries

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Journal of Energy Chemistry 2025年第2期101卷 402-415,I0009页

作者： Xuefang Xie Xiaoxin Xu Shuquan Liang Guozhao Fang College of Physical Science and Technology Xinjiang UniversityUrumqi 830017XinjiangChina Xinjiang Key Laboratory of Solid State Physics and Devices Xinjiang UniversityUrumqi 830046XinjiangChina School of Materials Science&Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan ProvinceCentral South UniversityChangsha 41003 HunanChina National Energy Metal Resources and New Materials Key Laboratory Central South UniversityChangsha 410083HunanChina

Iodine is widely used in aqueous zinc batteries(ZBs)due to its abundant resources,low cost,and active redox *** addition to the active material in zinc-iodine batteries,iodine also plays an important role in other ZBs,such as regulating the electrochemical behavior of zinc ions,promoting the reaction kinetic and reversibility of other redox pairs,catalytic behaviors related to iodine reactions,coupling with other halogen ions,shuttle behaviors of polyiodides,***,there is currently a lack of comprehensive discussion on these ***,this review provides a comprehensive overview of the electrochemical behaviors of iodide in the aqueous *** effect of iodine ions on the Zn^(2+)desolvation behaviors and the interfacial behaviors of Zn anode was *** redox pairs boosting other redox pairs,such as MnO_(2)/Mn^(2+)redox pair and vanadium redox pair to obtain high reversibility and capacity was also ***,the catalytic behaviors related to iodine reactions in aqueous ZBs,synergistic reaction with other halogen ions and suppression of shuttle behaviors for high performance zinc-iodine batteries were systematically ***,future prospects for designing effective iodine electrochemical behaviors with practicability are proposed,which will provide scientific guidance for the practical application of iodine-related aqueous ZBs.

关键词： lodide ion Redox pairs Catalytic behavior Shuttle effect Zinc batteries

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Developing High-Energy, Stable All-Solid-state Lithium Batteries Using Aluminum-Based Anodes and High-Nickel Cathodes

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Nano-Micro Letters 2025年第1期17卷 1-15页

作者： Wu, Xin Wang, Meiyu Pan, Hui Sun, Xinyi Tang, Shaochun Zhou, Haoshen He, Ping Center of Energy Storage Materials & Technology Department of Energy Science and Engineering College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid-State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China Department of Materials Science and Engineering College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid-State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China

Aluminum (Al) exhibits excellent electrical conductivity, mechanical ductility, and good chemical compatibility with high-ionic-conductivity electrolytes. This makes it more suitable as an anode material for all-solid-state lithium batteries (ASSLBs) compared to the overly reactive metallic lithium anode and the mechanically weak silicon anode. This study finds that the pre-lithiated Al anode demonstrates outstanding interfacial stability with the Li6PS5Cl (LPSCl) electrolyte, maintaining stable cycling for over 1200 h under conditions of deep charge–discharge. This paper combines the pre-lithiated Al anode with a high-nickel cathode, LiNi0.8Co0.1Mn0.1O2, paired with the highly ionic conductive LPSCl electrolyte, to design an ASSLB with high energy density and stability. Using anode pre-lithiation techniques, along with dual-reinforcement technology between the electrolyte and the cathode active material, the ASSLB achieves stable cycling for 1000 cycles at a 0.2C rate, with a capacity retention rate of up to 82.2%. At a critical negative-to-positive ratio of 1.1, the battery’s specific energy reaches up to 375 Wh kg−1, and it maintains over 85.9% of its capacity after 100 charge–discharge cycles. This work provides a new approach and an excellent solution for developing low-cost, high-stability all-solid-state batteries. (Figure presented.) © The Author(s) 2025.

关键词： Solid-state Batteries

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A partially degradable composite consisting of Ti-Zr-Cu-Pd-Sn metallic glass and Fe-Mg alloy for orthopedic applications

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Acta Biomaterialia 2025年 198卷 514-529页

作者： Du, Peng Zuo, Kun Yan, Rongqiang Li, Kun Chen, Shilu Yuan, Bo Zhang, Liang Xie, Guoqiang Shenzhen518055 China Institute of Intelligent Manufacturing Technology Shenzhen Polytechnic University Shenzhen518055 China State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin150001 China School of Materials Science and Engineering Shandong University of Technology Zibo255000 China

Partially-degradable biomaterials refers to smart implants where biodegradable metals can gradually be replaced by newly growing bone or living tissues, and leave behind a porous inert metal skeleton that stably binds with the new bone tissue. In this research, a partially degradable composite was designed by integrating Ti-Zr-Cu-Pd-Sn metallic glass (MG) with designed Fe-Mg alloy using spark plasma sintering (SPS). The mechanical alloying technique successfully enabled the fusion of immiscible Fe and Mg, addressing the issues of Fe's slow degradation and Mg's rapid breakdown, while also minimizing potential fractures in the metal framework due to hydrogen gas evolution. The controlled degradation of Mg(Fe) promotes the formation of Ca-P compounds, enhancing the bioactivity of the Fe-Mg composite. This design endows the composite with plastic and ductile deformation under compression, providing a viable solution to the brittle fracture behaviour commonly associated with conventional bulk metallic glasses (BMGs). This advancement holds promise for aligning with the natural growth rate of human bone, further augmenting the bioactive properties and practical applications of the MG/Fe-Mg composite material. statement of significance: In this research, a partially degradable composite was designed by integrating Ti-Zr-Cu-Pd-Sn metallic glass (MG) with designed Fe-Mg alloy using SPS. The Fe-Mg alloy act as temporary space holders can gradually being replaced by newly formed bone, thus establishing a dynamic equilibrium between the biodegradation of the bio-metals and the inward growth of new bone. The degradation of Mg(Fe) promotes the formation of Ca-P compounds, enhancing the bioactivity of the composite. This design endows the composite with plastic deformation under compression, providing a viable solution to the brittle fracture behavior of conventional MGs. This advancement holds promise for aligning with the natural growth rate of human bone, further augmenting the

关键词： Magnesium alloys

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Achieving excellent strength-ductility-superelasticity combination in high-porosity NiTiNb scaffolds via high-temperature annealing

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材料科学技术（英文版） 2025年第3期206卷 221-233页

作者： Wei Liu Yintao Zhang Binghao Wang Shifeng Liu Yan Wang Ling Zhang Liang Zhang Lai-Chang Zhang Weijie Lu Liqiang Wang State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Affiliated Hospital of Youjiang Medical University for Nationalities Guangxi Health Commission Key Laboratory of Biomedical Materials ResearchBaise 533000China School of Metallurgical Engineering Xi'an University of Architecture and TechnologyXi'an 710055China International Joint Laboratory for Light Alloys(MOE) College of Materials Science and EngineeringChongqing UniversityChongqing 400045China Centre for Advanced Materials and Manufacturing School of EngineeringEdith Cowan University270 Joondalup DriveJoondalupPerth6027WAAustralia

Metallic scaffolds with lightweight,low elastic modulus,and high energy-absorbing capacity are widely utilized in industrial applications but usually require post-heat treatment to enhance their comprehen-sive mechanical ***,it is unclear how to utilize the impact of β-Nb on the surrounding matrix for NiTiNb ternary alloys to achieve strength-ductility-superelasticity ***,we pre-pared rhomboidal dodecahedral NiTiNb porous scaffolds with a porosity of 85.9％by additive ***,annealing treatment was employed to drastically reduce the phase transformation temperatures and expand the thermal ***,the 850 ℃ annealed scaffold exhibited exceeding double compressive strength of the as-built sample,with a remarkable improvement in ductil-ity and *** the microstructure perspective,high-temperature annealing caused a further eutectic reaction of the unmelted Nb particles with the NiTi matrix and the transformation of mesh-like β-Nb into dispersedly distributed spherical β-Nb *** microstructure evolution after defor-mation indicated that stress-induced martensitic transformation occurred in the matrix away from the NiTi-Nb eutectic region whereas almost no martensite formed nearby β-Nb *** probe tomog-raphy characterization revealed an element diffusion zone in several nanometers surrounding the β-Nb particle,where the substitution of Nb with Ti led to a higher Ni:Ti atomic ratio,lowering transforma-tion *** dynamics simulations illustrated that β-Nb particles can not only entangle dislocations internally,acting as reinforcements but also hinder the twin growth,contributing to strain *** work elucidates the influence of β-Nb particles on the deformation mechanism of the NiTi-Nb eutectic region through in-depth atomic-scale investigation,which can provide inspiration for the improvement of comprehensive mechanical properties of NiTiNb alloys.

关键词： NiTiNb Eutectic alloys Mechanical properties Metallic scaffolds Strain hardening

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KCl acts as a flux to assist the growth of sub-millimeter-scale metallic 2D non-layered molybdenum dioxide

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Rare Metals 2025年第1期44卷 404-416页

作者： Li-Ying Deng Qing Zhang Wang-Yang Li Xiao-Yuan Ye Yi-Fan Zhao Shen-Zhong Chen Yu-Lan Wang Xing-Hui Wang Hui-Peng Chen Zhi-Yang Yu Qun Yan Shu-Ying Cheng Tai-Liang Guo Wen-Ping Hu Feng Ding Jie Sun National and Local United Engineering Laboratory of Flat Panel Display Technology College of Physics and Information EngineeringFuzhou UniversityFuzhou350100China Fujian Key Laboratory of Agricultural Information Sensing Technology College of Mechanical and Electrical EngineeringFujian Agriculture and Forestry UniversityFuzhou350002China Key Laboratory of Organic Integrated Circuit Department of ChemistrySchool of ScienceMinistry of Education and Tianjin Key Laboratory of Molecular Optoelectronic SciencesTianjin UniversityTianjin300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin300072China College of Physics and Information Engineering Institute of Micro-Nano Devices and Solar CellsFuzhou UniversityFuzhou350108China State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou350116China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518000China

Two-dimensional(2D)metal oxides(2DMOs),such as MoO_(2),have made impressive strides in recent years,and their applicability in a number of fields such as electronic devices,optoelectronic devices and lasers has been ***,2DMOs present challenges in their synthesis using conventional methods due to their non-van der Waals *** report that KCl acts as a flux to prepare large-area 2DMOs with sub-millimeter *** systematically investigate the effects of temperature,homogeneous time and cooling rate on the products in the flux method,demonstrating that in this reaction a saturated homogenous solution is obtained upon the melting of the salt and ***,the cooling rate was adjusted to regulate the thickness of the target crystals,leading to the precipitation of 2D non-layered material from the supersaturated solution;by applying this method,the highly crystalline non-layered 2D MoO_(2)flakes with so far the largest lateral size of up to sub-millimeter scale(~464μm)were *** studies have revealed that the 2D MoO_(2)features metallic properties,with an excellent sheet resistance as low as 99Ω·square^(-1 )at room temperature,and exhibits a property of charge density wave in the measurement of resistivity as a function of temperature.

关键词： 2D non-layered materials Metallic Metal oxide Thickness modulation Flux method

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Giant spatial Goos-Hänchen shift achieved in superconducting hyperbolic metamaterials with graphene

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Optics Express 2025年第9期33卷 19359-19370页

作者： Yang, Junfu Xie, Zhijiang Ni, Hao Chen, Xiaoling Qin, Zhongli Zhao, Dong Zhao, Miaomiao State Key Laboratory of Mechanical Transmission for Advanced Equipment Chongqing University Chongqing400044 China College of Mechanical and Vehicle Engineering Chongqing University Chongqing400044 China School of Electronic and Information Engineering Hubei University of Science and Technology Xianning437100 China Hubei Provincial Key Laboratory of Optoelectronic Information and Intelligent Control Hubei University of Science and Technology Xianning437100 China

We have theoretically analyzed the enhancement and regulation of the Goos-Hänchen (GH) shift within hyperbolic metamaterials in the near-infrared band under low-temperature conditions. Given a fixed incident wavelength, photonic crystals constructed from graphene and superconductor present hyperbolic dispersion characteristics in the dispersion space by modulating the Fermi energy of graphene. Near the critical phase transition point from elliptic dispersion to hyperbolic dispersion, the phase of the reflection coefficient undergoes an abrupt alteration. Consequently, a remarkably large GH shift occurs precisely at the resonant state. A substantial GH shift can be effectively realized by regulating the layers of graphene, the thickness of the superconductor, and the temperature. The largest positive GH shift reaches up to 4000λ at T = 200 K. This research is anticipated to provide theoretical guidance for devising high-sensitivity temperature sensors based on the GH shift effect in hyperbolic materials within a low-temperature environment. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Metamaterials

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Structure deformation of Ni-Fe-Se enables efficient oxygen evolution via RE atoms doping

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Rare Metals 2025年第1期44卷 336-348页

作者： Hong-Rui Zhao Cheng-Zong Yuan Cong-Hui Li Wen-Kai Zhao Fu-Ling Wu Lei Xin Hong Yin Shu-Feng Ye Xiao-Meng Zhang Yun-Fa Chen Jiangxi Province Research Institute of Rare Earths Ganjiang Innovation AcademyChinese Academy of SciencesGanzhou341119China School of Rare Earths University of Science and Technology of ChinaHefei230026China Key Laboratory of Hunan Province for Advanced Carbon-Based Functional Materials School of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang414006China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing100190China

The development of cost-effective and highly stable electrocatalysts for oxygen evolution reactions holds paramount importance in practical hydrogen ***,we present a novel self-supported electrode comprising Ce-doped Ni-Fe-Se nanosheets grown on carbon cloth(Ni-Fe-Ce-Se/CC).This electrode was synthesized through a selenylation process,utilizing Ni-Fe-Ce-layered double hydroxide/carbon cloth(Ni-Fe-Ce LDH/CC)as the ***,Ni-Fe-Ce-Se/CC electrode demonstrates remarkable performance,requiring a low overpotential of 300 mV to attain a current density of 100 mA·cm^(-2)under harsh alkaline ***,the electrode exhibits exceptional stability during continuous operation for 100 *** into the underlying mechanisms was gained through a combination of experimental results and density functional theory *** findings reveal that Ce doping induces crystal structure deformation in Ni-Fe-Se and enhances electron enrichment around Ni *** structural modification optimizes the adsorption energy of oxygen-based intermediates on the Ni-Fe-Se *** work offers a valuable strategy for regulating the electron transfer and adsorption capabilities of transition metal selenide electrocatalysts through RE atoms doping,opening new avenues for enhanced electrocatalytic performance.

关键词： Ce doping Structure deformation Ni-Fe-Se Electron transfer Oxygen evolution

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