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  1. 641

    Enhancing ultrasonic-assisted drying of low-porosity products through pulsed electric field (PEF) pretreatment: The case of butternut squash by B. Llavata, A. Quiles, C. Rosselló, J.A. Cárcel

    Published 2025-01-01
    “…PEF pretreatment altered the physicochemical and microstructural properties of butternut squash. Thus, the higher the energy input, the higher the cell disintegration rate, the lower the shearing force and the lower the water holding capacity. …”
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    Article
  2. 642

    Tribo-Mechanical Characteristics of Modified Cu-Cr-Zr Resistance Spot Welding Electrode with Nickel by Ahmad Mostafa, Reham Alhdayat, Rasheed Abdullah

    Published 2025-06-01
    “…Two alloy compositions, designated as Sample A (Cu-0.871%Cr-0.156%Zr) and Sample B (modified with 8.94% Ni), were prepared. Microstructural examination revealed a coarse, mixed equiaxed–columnar grain structure in Sample A, while Sample B exhibited a refined dendritic morphology of about 50 μm PDAS, due to nickel-induced solute partitioning, improving microhardness from 72.763 HV to 83.981 HV. …”
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  3. 643

    Thermal Shock and High Temperature Wear Behaviors of SHM1302 Hard-Faced Layer by FEI Yanmin, WU Rufei, LI Qi, GAO Anyang, SI Tingzhi

    Published 2025-03-01
    “…To evaluate the high temperature application range of SHM1302 hard surface layer, the thermal shock resistance and high temperature wear resistance of SHM1302 hard surface layer were tested respectively, and the thermal shock and high temperature wear behavior of hard surface layer were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy(EDX) and other characterization methods.In addition, the relationship between high-temperature oxidation / microstructure transformation and thermal shock / high-temperature wear behavior was established.Results showed that the initiation and propagation of SHM1302 thermal shock cracks were affected by the combined effects of stress and oxidation, and the cracks mainly propagated along the interface between matrix and carbide.With the thermal shock cycle,the formation of harmful phase of MnFe2O4 in the oxide film and the precipitation of (Fe,Cr)3C in the matrix promoted the expansion of thermal shock cracks.At 500 ℃, the hard surface had good high temperature wear performance.The wear at 600 ℃and 700 ℃was significantly increased by 1 244%and 1 596%compared with 500 ℃.When the wear temperature increased from 500 ℃to 600 ℃, the increase of oxidation rate and the formation of harmful phase MnFe2O4 were the key factors for the rapid decline of wear performance.Furthermore, the M ⇌A structure transformation at 700 ℃promoted the initiation of fatigue cracks and further accelerated the wear process.…”
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  4. 644

    Synergistic enhancement of recycled aggregate concrete using hybrid natural-synthetic fiber reinforcement and silica fume by Danish Akbar, Faisal Shabbir, Ali Raza, Nabil Ben Kahla

    Published 2025-09-01
    “…Microstructural and mineralogical characterizations were performed using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR). …”
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  5. 645

    Contrasting effects of Si on high-temperature deformation behavior and room-temperature strength in V-microalloyed 10Mn-18Cr stainless steels by Atef Hamada, Ali Khosravifard, Khaled Elanany, Mahmoud Khedr, Anna Kisko, Matias Jaskari, Saad Ebied, Tarek Allam, Antti Järvenpää, Pentti Karjalainen

    Published 2025-06-01
    “…Microstructural analysis of the hot-rolled and FH annealed structures was conducted using electron backscatter diffraction and laser scanning confocal microscopy, and precipitation was characterized by transmission electron microscopy. …”
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    Article
  6. 646
  7. 647
  8. 648

    Research Progress on WC-12Co Coatings Prepared by High Velocity Oxy-Fuel Spraying by SI Yongli, NAN Jian, XIE Liangjun, SONG Shengqiang, DAI Xueting, MU Zhigang, ZOU Junwen

    Published 2025-04-01
    “…High velocity oxy-fuel (HVOF) spraying has been developed as an important technology in surface engineering and remanufacturing to provide materials with protective and functional coatings,thereby ensuring the surface protection of parts and the remanufacturing of damaged products.The preparation of WC-12Co coatings by high velocity oxy-fuel (HVOF) is of great significance in improving the surface wear resistance of substrate materials and prolonging the service life of parts.In this paper, the spray powder, preparation process, control of coating microstructure and properties, flow field numerical simulation, particle deposition behavior, surface protection of engineering materials and posttreatment of HVOF spraying WC-12Co coatings were summarized.The research trends and application prospects of WC-12Co coatings were also prospected, and it was proposed that the evaluation of coating properties and protection, numerical simulation and experimental verification of the spraying process, and engineering application research were worthy of continuous attention.…”
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  9. 649

    AlMgScZr alloys for laser powder bed fusion additive manufacturing. A review by Leandro González-Rovira, Leticia Cabrera-Correa, Juan de Dios López-Castro, Adrián Ojeda-López, F. Javier Botana

    Published 2025-06-01
    “…LPBF-processed AlMgScZr alloys exhibited a unique microstructure comprising equiaxed and columnar grains and achieved isotropic high strength. …”
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    Article
  10. 650

    The Development of a New Bioabsorbable Plastically Deformed Mg-Based Composite with Hydroxyapatite Nanopowder Addition: Towards Improved Degradation and Biological Assessment by Zohaib Hassan, Joanna Idaszek, Kamil Kaszyca, Rafał Zybała, Marek Tkocz, Dariusz Kuc, Jarosław Mizera, Anna Dobkowska

    Published 2025-03-01
    “…In this work, the microstructure and degradation properties of a novel metal matrix composite composed of Mg with the addition of 1 vol. % hydroxyapatite nanopowder (Mg + 1 vol % nHAp) were evaluated. …”
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    Article
  11. 651

    Mechanical and thermal properties of structural lightweight bamboo fiber-reinforced insulating mortar by Yunyun Tong, Wei Zhang, Mengya Li, Tien Tung Ngo, Qiannan Wang, Wei Zeng, Benyue Li

    Published 2025-07-01
    “…Bamboo fiber-reinforced mortar (BFRM) was evaluated for its microstructural, mechanical, and thermal properties. …”
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  12. 652
  13. 653

    Effects of Different Aggregate Gradations and CO<sub>2</sub> Nanobubble Water Concentrations on Mechanical Properties and Damage Behavior of Cemented Backfill Materials by Xiaoxiao Cao, Meimei Feng, Haoran Bai, Taifeng Wu

    Published 2025-03-01
    “…In this study, carbon dioxide nanobubble water (CO<sub>2</sub>NBW) was evaluated as an innovative additive for cemented backfill materials (CBMs), and its optimization effect on the mechanical properties and microstructure of the materials was explored. …”
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  14. 654

    An in vitro and in vivo study of biodegradable Zn–Cu–Li alloy with high strength and ductility fabricated by hot extrusion combined with room-temperature ECAP by Jingzhu Duan, Lei Li, Fanglin Cao, Yusong Suo, Qun Yang, Jingong Qin, Xiangjie Wang, Yang Yang

    Published 2024-11-01
    “…Deformation processing is a commonly used strategy to improve the microstructure and hence mechanical properties of biodegradable Zn alloys. …”
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    Article
  15. 655

    STORY GRAMMAR AS A STRATEGY FOR ENHANCING NARRATIVE SKILLS IN THE CASE OF L2 ROMANIAN ADULT LEARNERS by Ștefania-Lucia TĂRĂU, Adelina Patricia BĂILĂ, Antonela-Carmen ARIEȘAN-SIMION

    Published 2025-06-01
    “…It aims to give an interpretation across Story Grammar (SG) episodes of three stories from Mercer Mayer’s Frog Stories to track the development of the L2 Romanian oral productions, namely the macrostructure of the Story Grammar (SG) constituents and the microstructure of the temporal, causal, and additive cohesion markers. …”
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  16. 656

    Additively manufactured 316L stainless steel as a potential alternative implant material by M.S. Alam, S.R. Campbell, S.R. Spivey, G. Dutta, N. Pal, A. Karan, J. Xie, M.A. DeCoster, E.P. Murray

    Published 2025-01-01
    “…The microstructural features, electrochemical corrosion behavior, and biocompatibility with Locke's solution were evaluated for 316L stainless steel (SS) samples fabricated by selective laser melting (SLM) with understudied processing conditions providing low residual stress - 800, 1000 and 1200 mm/s laser scan speed with a laser power of 100 W. …”
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  17. 657

    Anisotropic corrosion behavior of laser-based direct energy deposited H13 steel in molten ADC12 aluminum alloy by Guo Wang, Weidong Lou, Chaoyang Deng, Wenyou Ma, Chuanqiang Li, Haidong Zhao

    Published 2024-11-01
    “…The effect of the anisotropic microstructure of the deposited H13 steel on corrosion behavior was elucidated by characterizing the microstructure before and after corrosion. …”
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    Article
  18. 658

    Synergistic Effects of Microbial-Induced Carbonate Precipitation and Modified Biochar on the Engineering Properties of Loess by Qibo Yan, Lingwei Kong, Shiyue Fang

    Published 2025-05-01
    “…Controlled experiments evaluated hydraulic conductivity, shear strength, and stress-strress–strain behavior under varying MBC content (0–8%), cementation reagent concentration (0.5–1.5 mol/L), and confining pressures (50–400 kPa), and complemented by microstructural characterization via scanning electron microscope (SEM). …”
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  19. 659
  20. 660

    Mechanical properties and Freeze-Thaw durability of concrete modified with microencapsulated phase change materials by Zhitao Zheng, Wenbing Shen, Sheng Li, Chuang Li, Pengjia Yin, Mingjun Guan, Jizhang Ha

    Published 2025-08-01
    “…This investigation systematically evaluates the dose-dependent effects of mPCM incorporation (0–12% cement replacement) on mechanical-strength development and freeze-thaw resistance through comprehensive mechanical testing, 100-cycle accelerated freeze-thaw evaluations, and quantitative microstructural analysis. …”
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    Article