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681
Mechanosynthesis of Nanocrystalline Biphasic Ni-Fe Alloy Powders by Mechanical Alloying and Their Structural and Thermal Characterization
Published 2025-02-01“…The average crystallite size was determined to be around 7 nm with the lattice strains quantified as 0.48% for both phases. This significant refinement of microstructure indicates extensive plastic deformation within the grains. …”
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682
Sulfate attack on geopolymer: effect of the proportion of binder and air-entraining additive
Published 2024-09-01“…The sulfate resistance properties were evaluated by the change in longitudinal length, mass variation, compressive strength, flexural tensile strength, and microstructure. SEM/EDS analyses suggest the formation of caminite and a change in the structure of the aluminosilicate gel to M-A-S-(H) in mortars exposed to MgSO4, while thenardite was indicated as a harmful product in mortars subjected to Na2SO4. …”
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683
Influence of Nd3+ ion on piezoelectric studies in lead barium niobate ferroelectric ceramics for device applications
Published 2024-12-01“…Grain size analysis showed values between 1.09 μm and 3.95 μm, with the microstructure becoming more refined as Nd³⁺ content increased. …”
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684
Improved Mechanical Performances of Hastelloy C276 Composite Coatings Reinforced with SiC by Laser Cladding
Published 2024-12-01“…When SiC powder particles are present around the crystals, the microstructure of the cladding layer grows acicular crystals containing Si and C. …”
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685
Cryogenic high-pressure torsion of a single-phase CoCrFeNiMn high-entropy alloy: Nanoindentation strain-rate sensitivity and creep deformation behavior
Published 2025-10-01“…These calculated trends of SRS value and variations of creep deformation depth for the examined materials were discussed in correlation with the characterized microstructural aspects in the form of sub-grains and dislocation’s structure, which were analyzed using advanced microscopy techniques.…”
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686
Modeling and analysis of the effects of age hardening, magnesium dissolution, and SiC reinforcement on wear properties in eutectic Al-Si composites using full factorial techniques
Published 2024-01-01“…These findings offer valuable insights into the design of high-performance Al-Si composites, highlighting the importance of microstructural control to meet the demands of advanced engineering applications.…”
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687
Improving ductility via grain structure control in Sc/Zr modified Al-Cu-Li alloys by pulsed-laser powder bed fusion
Published 2025-12-01“…The samples fabricated via pulsed laser exhibit a remarkable 211% improvement in elongation compared to those fabricated by continuous laser, with only a minor 7.6% decrease in tensile strength due to the shift from heterogeneous deformation induced (HDI) strengthening to grain refinement strengthening. This strategy enables tunable microstructural design in various alloy systems, offering enhanced flexibility to balance strength and ductility for advanced engineering applications.…”
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688
Simultaneously improving strength and corrosion resistance of additively manufactured Mg-Gd-Zr alloy by in-situ alloying with Al
Published 2025-04-01“…These microstructural transformations yield a synchronous enhancement in strength and corrosion resistance with increasing Al content. …”
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689
Tribocorrosion behavior of nickel-free duplex and 316L stainless steels fabricated by laser powder bed fusion in artificial seawater
Published 2025-09-01“…In this work, nickel-free duplex stainless steel (NiFDSS) and 316L stainless steel were produced by laser powder bed fusion (PBF-LB/M) under optimized parameters, reaching 98.83 % and 99.80 % relative densities, respectively. Microstructural analysis showed transformation from fully ferritic in the as-built condition to duplex after heat treatment (950 °C/1 h, followed by water quenching) for NiFDSS. …”
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690
Effect of Ultrasonic Nanocrystalline Surface Modification (UNSM) on Stress Corrosion Cracking of 304L Stainless Steel
Published 2024-11-01“…The impact of peening treatment on SCC properties was explored through microstructural analysis, corrosion properties analysis, and compressive residual stress assessments. …”
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691
Enhancing the strength-ductility synergy in CoCrNi medium-entropy alloys via grain boundary segregation engineering
Published 2025-12-01“…In this study, grain boundary segregation engineering was employed, using boron (B) as a segregant, to investigate the effects of varying B concentrations on the microstructure and properties of CoCrNi medium-entropy alloys (MEAs). …”
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692
The dynamic recrystallization induced by Al2Nd and promoted by Al2RE in a hot compressed Mg–1Al-1.5Nd-1.5Y-0.5Gd alloy
Published 2024-11-01“…In this study, the effects of various hot working parameters on the microstructure and hardness of an extruded Mg–1Al-1.5Nd-1.5Y-0.5Gd alloy were investigated including strain rate ranging from 0.001 s⁻1 to 1 s⁻1 and deformation temperature between 300 °C and 450 °C. …”
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693
Effect of Nd3+ and Sm3+ doping on the crystal structure and dielectric properties of Y2−xAxMgTiO6 ceramics
Published 2025-06-01“…The sample exhibited a pure phase and dense microstructure, with an optimal Q×f value of 74,821 GHz for YMT Nd (x = 0.1) and 67,068 GHz for YMT Sm (x = 0.05). …”
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694
Unveiling first self‐healing in metallised film capacitor: A macro–micro analysis
Published 2025-04-01“…The quantified relationship between the macroscopic characteristics and microstructure evolution (polypropylene decomposition and aluminium electrode vaporisation) is established in MFCs under diverse SH energy levels. …”
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695
Structural and magneto-elastic properties of samarium doped cobalt–nickel ferrite ceramics obtained by spark plasma sintering
Published 2025-03-01“…The composition, structure, and microstructure of the nanoparticles and pellets were characterized by different techniques such as X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. …”
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696
Effect of Scanning Speed on Wear and Corrosion Behaviors of High-Speed Laser-Cladded Cu-TiC Coating
Published 2025-06-01“…The influence laws of the scanning speed (86.4–149.7 mm/s) on the microstructure, tribological properties, and corrosion resistance of the coating were explored. …”
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697
Insight into the durability of concrete based on ultrafine ground granulated blast furnace slag, phosphogypsum, and steel slag
Published 2025-09-01“…Sulfate corrosion in UFBC primarily produces needle-like ettringite (AFt), causing less microstructural damage than the gypsum crystals formed in PCBC and UBC. …”
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698
A constitutive model optimizing superalloy performance: The interplay of annealing twins, dislocations, and grain boundaries
Published 2025-07-01“…To elucidate the mechanistic roles of these microstructural features, this study employed high-precision planar argon ion polishing and electron backscatter diffraction to quantitatively characterize the annealing twin volume fraction, dislocation density, and grain size in superalloys heat-treated at various temperatures. …”
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699
Hot deformation physical mechanisms and a unified constitutive model of a solid solution Ti55511 alloy deformed in the two-phase region
Published 2025-01-01“…In this work, the flow behaviors and microstructure evolution of a solid solution Ti55511 alloy deformed in the two-phase region are investigated by hot compression experiments. …”
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700
Comparative analysis of bobbin tool and one-step double-acting tool in friction stir welding of aluminum AA1100
Published 2025-09-01“…Results indicated that the bobbin tool produced rougher beads and tear defects due to its design, while the one-step double-acting tool, particularly at a 2 mm offset, yielded cleaner, more uniform welds with fewer defects and enhanced material control. Microstructural analysis showed that the stir zone exhibited uniform grain refinement, and the Heat-Affected Zone (HAZ) benefited from finer grain structures due to improved heat management. …”
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