Journal of Materials Science & Technology最新文献

{"title":"Synergy of strength-plasticity via dynamic heating process: A non-isothermal annealing strategy to regulate recrystallization of 7B50 aluminum alloy","authors":"Lingbo Kong, Jufu Jiang, Ying Wang, Minjie Huang, Xiaodong Zhang, Jian Dong, Jingbo Cui","doi":"10.1016/j.jmst.2025.05.074","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.05.074","url":null,"abstract":"Traditional isothermal annealing processes often face the strength-plasticity trade-off dilemma due to recrystallization softening effects. In this study, a novel non-isothermal annealing method named dynamic heating process was proposed to achieve simultaneous improvement of strength and plasticity by regulating the recrystallization process. Microstructural investigations revealed that the percentage of low-angle grain boundaries (LAGBs) decreased with increasing solid-state temperature. Multi-scale second-phase particles (predominantly <em>η</em> phases) pinned LAGBs, promoting the formation of dislocation walls and ultimately leading to refined subgrains. Particle-stimulated nucleation and strain-induced boundary migration dominated the recrystallization behavior at a semi-solid temperature range. The solidified liquid phases interacted synergistically with both elongated and equiaxed grains, significantly improving the elongation (El) along the rolling direction (RD) at 535°C. With further dynamic heating to 595°C, equiaxed recrystallized grains became dominant. Simultaneously, Cu-rich liquid phase generation at grain boundaries caused material weakening. The optimized non-isothermal annealing process was dynamic heating to 485°C at a rate of 10°C/min. Under these conditions, the alloy demonstrated superior mechanical performance: in RD, the ultimate tensile strength (UTS) reached 556 MPa with yield strength (YS) of 365 MPa and El of 14%. The transverse direction (TD) specimens achieved UTS of 529 MPa, YS of 335 MPa, and El of 17.5%. Compared to the initial samples, these specimens showed 19.0% El, 114.6% YS, and 78.9% UTS enhancement in the RD, and 41.4% El, 104.8% YS, and 71.6% UTS elevation in the TD. This work provided an efficient heat treatment strategy for the synergistic regulation of strength and plasticity in high-strength aluminum alloys.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"151 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612920","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":"Quantitative phase-field modeling of nonequilibrium microstructural evolution in rapid solidification for additive manufacturing","authors":"Leiji Li, Fei Xiao, Ying Zhou, Xiaorong Cai, Chongfeng Zhang, Jinzhong Gao, Xiaopeng Shen, Tianchi Zhu, Sihan Wang, Yijia Gu, Xuejun Jin","doi":"10.1016/j.jmst.2025.05.071","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.05.071","url":null,"abstract":"Fusion-based metal additive manufacturing (AM) relies on layer-by-layer deposition and rapid solidification, where the material transitions swiftly from liquid to solid. A key phenomenon during this process is solute trapping, a nonequilibrium effect governed by a velocity-dependent partition coefficient, which critically influences microstructure kinetics, morphology, and phase formation. In this study, we employ a recently proposed quantitative phase field (PF) model to systematically explore solute trapping, solute drag, and their impacts on pattern formation during rapid solidification at AM-relevant velocities, in both one and two dimensions. Our simulations reveal a growth mode transition from planar to cellular to dendritic, and back to cellular and planar, consistent with classical solidification theory. Based on PF simulations, we construct a solidification microstructure selection map and compare the primary dendritic/cell spacing with theoretical models. The simulated morphologies and arm spacing align well with experimental observations for Al-4Si and Ti-20Nb alloys under rapid solidification conditions. These findings highlight the potential of the PF model for predicting and controlling microstructure formation in the melt pool of AM processes, offering insights for optimizing AM fabrication.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"6 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612924","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":"Marine anti-fouling polyurethane-fluorinated polysiloxane/microcapsule/metal organic framework bionic coating for broad-spectrum and long-lasting protection","authors":"Jie Liu, Mingkang Rao, Fu Xia, Bo Jia, Nan Zheng, Hao Jiang, Zheng Li, Jiufu Lu, Wenge Li, Guoqing Wang","doi":"10.1016/j.jmst.2025.06.022","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.06.022","url":null,"abstract":"Bu@PGMA<em>_m</em>/GO microcapsules (MCs) with compact multi-shell structure, the metal-organic framework [Zn(MIBA)₂]<em>_n</em>, and high-strength, high-adhesion polyurethane-fluorinated polysiloxane (PU-^FPDMS) are successfully synthesized. By alternately spin-coating PU-^FPDMS/MCs mixture and PU-^FPDMS/ [Zn(MIBA)₂]<em>_n</em> mixture in sequence, a PU-^FPDMS/MCs/[Zn(MIBA)₂]<em>_n</em> marine anti-fouling coating with coral-like morphology is fabricated. Herein, the reactive oxygen species generated via the photocatalytic reaction of [Zn(MIBA)₂]<em>_n</em> exhibit inhibitory effects on biological organisms. The static contact angle and sliding angle of the PU-^FPDMS/MCs/[Zn(MIBA)₂]<em>_n</em> coating are 157.8° and 5.1°, respectively. After being immersed in fluorescently-labeled bovine serum albumin solution for 24 h, the coating remains free of protein coverage. The coating exhibits a 100% antibacterial rate against <em>Escherichia coli, Staphylococcus aureus,</em> and <em>Pseudomonas aeruginosa</em>. After being immersed in algal suspensions for 30 days, the coating exhibits the lowest adhesion of <em>Chlorella</em> and <em>Nitzschia closterium</em>, with coverage percentages of 4.7% and 4.0%, respectively. After 5 months of marine field test, the coating still remains free of any marine fouling coverage. The coating achieves broad-spectrum and long-lasting anti-fouling performance through the synergistic effects of the robust low-surface-energy PU-^FPDMS matrix, steady-state release of Bu, photocatalysis of [Zn(MIBA)₂]<em>_n</em>, and the bionic surface. The PU-^FPDMS/MCs/[Zn(MIBA)₂]<em>_n</em> coating is anticipated to find extensive applications in anti-fouling, anti-icing, drag reduction, self-cleaning, and antibacterial domains due to its unique properties.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"23 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612925","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":"Exploring a phase-compatible surface engineering for enhancing the structural stability in Li-rich layered oxides","authors":"Errui Wang, Jing Yue, Hailiang Chu, Longde Duan, Jing Tang, Zhenzhen Hui, Xiangju Ye, Xu Zhang, Haijun Yu","doi":"10.1016/j.jmst.2025.06.020","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.06.020","url":null,"abstract":"Li-rich layered oxides (LLOs) show tremendous potential as cathode materials for next-generation Li-ion batteries (LIBs) due to their high energy density and cost-effectiveness. However, several challenges, including lattice oxygen release, interface side reactions, and structural transitions, lead to rapid performance degradation, which limits their widespread application. To address these issues, a phase-compatible spinel Li_1.25Cr_0.25Ti_1.5O₄ (LCTO) coating layer on LLOs, as well as Cr3+ and Ti4+ surface co-doping, is successfully constructed. Based on the synergetic effect of the coating and co-doping, we intend to effectively enhance the structure stability and electrochemical performance upon cycling. Consequently, the optimized LCTO-LLOs-1 exhibits a capacity retention of 85.6% and a voltage decay of 0.309 Mv cycle⁻¹ after 500 cycles at 1 C. In addition, an excellent rate capacity of 163.5 mAh g⁻¹ is delivered at 5 C. This study provides a promising solution for enhancing the performance and stability of LLOs, paving the way for their broader application in LIBs.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"8 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612919","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":"Multi-stage strain hardening induced by spinodal decomposition structure in Ni-based superalloy","authors":"Yijie Ban, Liang Huang, Zhonghao Li, Yi Zhang, Yuzhen Yin, Jie Pan","doi":"10.1016/j.jmst.2025.06.019","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.06.019","url":null,"abstract":"Strengthening metallic materials often compromises ductility primarily due to insufficient strain hardening capacity to sustain continuous plastic deformation. In this study, we introduce spinodal decomposition strengthening and bimodal grain structures into a Ni-based superalloy, achieving a remarkable synergy of strength and ductility. The alloy demonstrates a high yield strength of 1120 MPa, an ultimate tensile strength of 1548 MPa, and a uniform elongation of 26.2 %. Notably, this alloy undergoes a multi-stage strain hardening process: the spinodal structure initially enhances dislocation resistance and subsequently facilitates dislocation accumulation and interaction with stacking faults, extending plastic deformation. Our findings underscore the pivotal role of the spinodal decomposition structure in enabling multi-stage strain hardening, phenomenon rarely observed in Ni-based superalloys, offering valuable insights into the strain hardening mechanisms and offering a promising pathway for optimizing the performance of high-strength alloys through spinodal structures.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"36 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612922","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":"Recrystallization mechanism and anisotropy regulation of AZ31 magnesium alloy curved components by staggered extrusion","authors":"Haibo Wang, Feng Li, Fengyuan Bao, Jiayang Zhang, Shun Luo","doi":"10.1016/j.jmst.2025.07.001","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.07.001","url":null,"abstract":"To clarify the mechanical anisotropy of magnesium alloy curved components under complex stress states, as well as the issues that limit their service stability and reliability in lightweight equipment. The present study investigates the evolution of anisotropy through staggered extrusion (SE). By implementing coordinated control over grain morphology, texture dispersion, and slip behavior, the SE process facilitates recrystallization, resulting in the transformation of plate-like grains into fine, equiaxed structures, while simultaneously diminishing the basal texture. At an extrusion ratio (<em>λ</em>) of 22.4, grain orientation becomes highly dispersed, thereby promoting the activation of non-basal slip systems and enhancing mechanical consistency across various directions. The anisotropy index (Δ<em>r</em>) is observed to decrease to 0.11, signifying an improvement in isotropy. However, excessively high extrusion ratio (<em>λ</em> = 44.8) leads to thermal accumulation, which can cause grain coarsening and partial texture recovery, resulting in a slight increase in anisotropy. This study elucidates the relationship between microstructural evolution and slip behavior induced by SE processing, which governs mechanical anisotropy. The findings provide a theoretical foundation for the design of curved magnesium alloy components that exhibit enhanced isotropy and service reliability.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"9 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612923","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":"Eutectic aluminum alloys fabricated by additive manufacturing: A comprehensive review","authors":"Feng Li, Wei Zhang, Bart J. Kooi, Yutao Pei","doi":"10.1016/j.jmst.2025.06.016","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.06.016","url":null,"abstract":"Metal additive manufacturing (AM) has progressed from prototyping to industrial production, opening new horizons for alloy design and performance enhancement, as its rapid-solidification characteristics expand the compositional space for novel alloys, and the resulting gains in physicochemical performance offer attractive solutions for high‑performance industrial applications. With the growing demand for high-strength aluminum (Al) alloys for aerospace and automotive applications, there is a dilemma of poor processability for conventional high-strength wrought Al-alloys by AM technologies. Eutectic microstructure provides both large-volume strengthening phases and better processability for rapid solidification. Recent research has shown that the eutectic Al alloys are suitable for AM to overcome metallurgical challenges and achieve printability-performance synergy. The eutectic theory and microstructure evolution, then static mechanical properties and long-term service behavior (creep, fatigue, and corrosion) at ambient and elevated temperatures, strengthening mechanisms, and thereafter tailored design strategies in AM fabricated Al alloys were elaborated. The review aims to provide fresh insights into the development of novel Al alloys and get attention from the AM community to meet the challenges of higher requirements of lightweight engineering materials.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"13 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612918","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":"Enhancing the oxidation and ablation resistance of Cf/HfB2-SiC composite via active cooling","authors":"Xinhui Geng, Ping Hu, Fei Wang, Wuju Wang, Liancai Xun, Chengfan Yuan, Xinghong Zhang","doi":"10.1016/j.jmst.2025.06.021","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.06.021","url":null,"abstract":"The increasing flight velocities of hypersonic vehicles require breakthroughs in active cooling technology to ensure the oxidation and ablation resistance of key thermal structures such as nose cones and windward surfaces. To achieve such a goal, we pioneered the active cooling approach by introducing arranged active cooling channels in the C_f/HfB₂-SiC composite, through which the temperature of the C_f/HfB₂-SiC composite could be significantly reduced under high heat flux tests. Intriguingly, with the increase of heat flux, the amplitude of temperature reduction exhibited a significant increasing trend. Specifically, under the heat flux of 4 MW/m², the surface temperature of the C_f/HfB₂-SiC composite was reduced from exceeding 2000 to 1500 °C, achieving a temperature reduction of over 500°C. The composite sample also maintained excellent structural integrity under 2–4 MW/m² heat flux over a test time of 300 s. These results not only highlighted the substantial advantages of the aligned channel active cooling strategy but also provided a new avenue for developing ceramic matrix composites and structures in extreme environmental applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"14 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612921","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":"Decoding viscosity-microstructure relationships in the ternary CaO-SiO2-FexO system via integrated machine learning and multimodal characterization","authors":"Longxing Zhang, Jinglin You, Guopeng Liu, Xiang Xia, Yufan Zhao, Feiyan Xu, Meiqin Sheng, Jiawen Lu, Yong Liu, Qingli Zhang, Songming Wan, Liming Lu, Kai Tang","doi":"10.1016/j.jmst.2025.05.069","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.05.069","url":null,"abstract":"This study investigates the viscosity and microstructure of the ternary CaO-SiO₂-Fe<em>_x</em>O system using a combination of deep neural network (DNN) learning, in-situ Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and quantum chemical ab initio calculation. A DNN-based viscosity prediction model was developed using a dataset of 1483 experimental data points, which were partitioned into training, validation, and test sets at a 5:2:3 ratio for model training and evaluation. The model achieved high prediction accuracy with a coefficient of determination (<em>R²</em>) of 0.9464 and a mean absolute error (MAE) of 0.069. The dataset encompasses the key compositional range of metallurgical slags, spanning 0–70 mol% SiO₂, 0–70 mol% CaO, and 0–90 mol% Fe<em>_x</em>O. The model enables rapid and accurate viscosity predictions, reducing the need for extensive experimental measurements. Microstructure analysis via XPS and Raman spectroscopy revealed that with increasing iron content, the silicon-oxygen tetrahedron (SiOT) network structure is disrupted, leading to a transformation from Si–O–Si to Si–O–Fe and Fe–O–Fe bonds, accompanied by a decrease in viscosity. This study also quantitatively correlates the Fe³⁺/(Fe³⁺+Si⁴⁺) ratio in tetrahedral coordination with melt viscosity through structure descriptors (NBO/Si ratio). These results demonstrate that an increase in the tetrahedral Fe³⁺/(Fe³⁺+Si⁴⁺) ratio nonlinearly elevates NBO/Si values (correlation coefficient <em>r</em> = 0.99), which linearly reduces melt viscosity (<em>r</em> = 0.96) through depolymerization of the SiOT network. The established model provides a predictive framework for viscosity optimization in metallurgical slag design and quantitative analysis of magma transport dynamics in geological systems.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"191 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611287","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":"Micro- and nanoscale glass compression molding using the metallic glass mold","authors":"Shike Huang, Fei Sun, Rongce Sun, Lixing Zhu, Jinbiao Huang, Shengyu Zhao, Junsheng Liu, Xiangyang Yu, Zhiyuan Huang, Yuqiang Yan, Wenqiang Ruan, Xiaodi Liu, Jiang Ma","doi":"10.1016/j.jmst.2025.05.073","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.05.073","url":null,"abstract":"Glass microlens arrays (MLAs) offer flexible designability and superior light modulation capability, making them essential in optical communication, sensing, and imaging. Glass compression molding (GCM) using metallic molds is regarded as one of the most promising methods for the mass production of glass MLAs elements. However, a significant challenge lies in fabricating fine micro- and even nanostructures on the surfaces of metallic molds for GCM. To overcome this limitation, we developed a non-mechanical method that exploits the unique thermoplastic forming properties of metallic glasses (MGs). Lens arrays with structural features of 75 μm and 400 nm were successfully fabricated on the Zr-based MGs. The molded MGs were subsequently subjected to full crystallization and coated with an amorphous Ir-Ni-Ta-Nb film. This ‘spawning’ process yielded metallic molds suitable for the GCM process. The resulting molds demonstrated excellent anti-adhesion performance and high-temperature durability, with a surface roughness of only about 4.6 nm, and no deterioration after 30 molding cycles at 620°C. Using these molds, corresponding glass elements were replicated with high fidelity, and their reliable imaging and focusing performance was validated. Overall, we present a convenient and promising strategy for the high-volume fabrication of precision glass elements.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"9 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611288","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}