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Ultrasonic-assisted Cr3C2 nanoparticle-reinforced aluminum-copper plasma arc brazing process
Published 2025-03-01“…Additionally, the average grain size of the welded joints decreased from 7.4 μm to 5.4 μm, showing a noticeable grain refinement effect. …”
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The effects of ultrasonic solidification on aluminum
Published 2003-01-01“…The effect of ultrasound on characteristics of solidified aluminum was shown. An ultrasonic head and ultrasonic system for modification was designed and applied to the crystallizing aluminum melt. …”
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Experimental and Numerical Simulation Study of Ultrasonic Vibration Effect on Abrasive Grain Distribution and Movement Behavior in Laser Cladding Melt Pool for Abrasive Layer Fabrication
Published 2025-01-01Subjects: “…ultrasonic vibration…”
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Ultrasonic Crystallization of Monotectic Zn-2%Bi Alloy
Published 2024-12-01“…The results showed enhanced organization of microstructure and the fragmentation of grains in the case of the ingots with the ultrasonic vibration presence.…”
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Assessing the Hardness of Quenched Medium Steel Using an Ultrasonic Nondestructive Method
Published 2015-01-01“…Based on the characteristics of wave transmission, the refraction, diffraction, and scattering of ultrasound wave velocity and attenuation in a material are governed by its grain boundary characteristics. In this study, C1045 middle carbon steel was heat-treated at various temperatures and then water-quenched, and the relationships among grain size, ultrasonic velocity, attenuation, and material hardness were then determined using two ultrasound sources. …”
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IMPROVEMENT OF METHODS AND MEANS OF ULTRASONIC CONTROL OF METAL GOODS WITH MODIFIED SURFACE LAYER
Published 2011-09-01Get full text
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Ultrasonic Assessment of Females with Carpal Tunnel Syndrome Proved by Nerve Conduction Study
Published 2013-01-01Get full text
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Optimization of Flexible Rotor for Ultrasonic Motor Based on Response Surface and Genetic Algorithm
Published 2024-12-01Get full text
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Experimental Study on Failure Law and Mechanism of Red Sandstone under Ultrasonic Vibration Excitation
Published 2022-01-01Get full text
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Elucidating the process mechanism in Mg-to-Al friction stir lap welding enhanced by ultrasonic vibration
Published 2025-01-01“…An equation related to the temperature and strain rate was derived to calculate the grain size at different locations of the weld nugget zone, and the effect of grain size distribution on the threshold thermal stress was included, so that the prediction accuracy of flow stress was further improved. …”
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Ultrasonic, Molecular and Mechanical Testing Diagnostics in Natural Fibre Reinforced, Polymer-Stabilized Earth Blocks
Published 2013-01-01“…Mechanical tests were carried out for three different clays which showed that the polymer increased the mechanical resistance of the samples to varying degrees, depending on the plasticity index of each soil. Variation in soil grain size distributions and Atterberg limits were assessed and chemical compositions were studied and compared. …”
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The Influence of Ultrasonic Melt Treatment on Microstructural Evaluation of the Al7Si2.5Cu Alloy for Semisolid Processing
Published 2025-01-01“…However, the chemical refining of the grain of aluminum alloys with high silicon content is impaired; therefore, grain refining via UST (Ultrasonic Melt Treatment) is a possible solution for these cases. …”
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Effects of ultrasonic rotating extrusion assisted wire arc additive manufacturing on the microstructure and mechanical properties of 5356 aluminum alloy
Published 2025-03-01“…Furthermore, the U-RE-WAAM process achieves a reduction in porosity and an enhancement in grain size and precipitated phase distribution by the coupling of mechanical force field and ultrasonic energy field. …”
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Effect of ultrasonic amplitude on microstructure and properties of wire arc additive manufactured ultra-high strength steel deposited metal
Published 2025-01-01“…The ultrasonic cavitation and cooling effects are more pronounced, more high melting point non-metallic oxides are formed, which provide nucleation sites for the solidification of subsequent welds, and the weld grains are refined. …”
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Effect of Ultrasonic Power on the Microstructure and Properties of a Semi-Solid Slurry of SnSbCu11-6 Alloy
Published 2024-12-01“…Interestingly, the second SnSb phase is also well refined to nearly 100 °C below the melting point; furthermore, the morphology is transformed from coarse petal-like to fine regular cubic, and the average grain size is refined to 48.8 ± 8.8 μm. The alloy’s comprehensive properties are best when the ultrasonic power is 1200 W. …”
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Peculiarities of Optoacoustic Excitation and Propagation of Plate Waves in Thin-Walled Оbjects
Published 2023-12-01Get full text
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