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641
Enhancing ultrasonic-assisted drying of low-porosity products through pulsed electric field (PEF) pretreatment: The case of butternut squash
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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642
Tribo-Mechanical Characteristics of Modified Cu-Cr-Zr Resistance Spot Welding Electrode with Nickel
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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643
Thermal Shock and High Temperature Wear Behaviors of SHM1302 Hard-Faced Layer
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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644
Synergistic enhancement of recycled aggregate concrete using hybrid natural-synthetic fiber reinforcement and silica fume
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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645
Contrasting effects of Si on high-temperature deformation behavior and room-temperature strength in V-microalloyed 10Mn-18Cr stainless steels
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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646
Long-term corrosion behavior of reinforced recycled aggregate concrete under acid rain condition
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647
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648
Research Progress on WC-12Co Coatings Prepared by High Velocity Oxy-Fuel Spraying
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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649
AlMgScZr alloys for laser powder bed fusion additive manufacturing. A review
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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650
The Development of a New Bioabsorbable Plastically Deformed Mg-Based Composite with Hydroxyapatite Nanopowder Addition: Towards Improved Degradation and Biological Assessment
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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651
Mechanical and thermal properties of structural lightweight bamboo fiber-reinforced insulating mortar
Published 2025-07-01“…Bamboo fiber-reinforced mortar (BFRM) was evaluated for its microstructural, mechanical, and thermal properties. …”
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652
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653
Effects of Different Aggregate Gradations and CO<sub>2</sub> Nanobubble Water Concentrations on Mechanical Properties and Damage Behavior of Cemented Backfill Materials
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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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
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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655
STORY GRAMMAR AS A STRATEGY FOR ENHANCING NARRATIVE SKILLS IN THE CASE OF L2 ROMANIAN ADULT LEARNERS
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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656
Additively manufactured 316L stainless steel as a potential alternative implant material
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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657
Anisotropic corrosion behavior of laser-based direct energy deposited H13 steel in molten ADC12 aluminum alloy
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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658
Synergistic Effects of Microbial-Induced Carbonate Precipitation and Modified Biochar on the Engineering Properties of Loess
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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659
High‐Performance Polymer‐derived Ceramics in LCD 3D Printing
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660
Mechanical properties and Freeze-Thaw durability of concrete modified with microencapsulated phase change materials
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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