Showing 1 - 20 results of 39 for search 'Ultrasonic grating~', query time: 5.27s Refine Results
  1. 1

    Ultrasonic-assisted Cr3C2 nanoparticle-reinforced aluminum-copper plasma arc brazing process by Congcong Lu, Yuhang Xie, Xiaoquan Yu, Yan Li, Jiankang Huang, Ding Fan

    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. …”
    Get full text
    Article
  2. 2

    The effects of ultrasonic solidification on aluminum by Đorđević Slavko 1

    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. …”
    Get full text
    Article
  3. 3
  4. 4
  5. 5

    Ultrasonic Crystallization of Monotectic Zn-2%Bi Alloy by A. Szot, G. Boczkal, P. Pałka

    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.…”
    Get full text
    Article
  6. 6

    Assessing the Hardness of Quenched Medium Steel Using an Ultrasonic Nondestructive Method by Shao-Yi Hsia, Yu-Tuan Chou

    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. …”
    Get full text
    Article
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12

    Elucidating the process mechanism in Mg-to-Al friction stir lap welding enhanced by ultrasonic vibration by Ming Zhai, Lei Shi, ChuanSong Wu

    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. …”
    Get full text
    Article
  13. 13

    Ultrasonic, Molecular and Mechanical Testing Diagnostics in Natural Fibre Reinforced, Polymer-Stabilized Earth Blocks by C. Galán-Marín, C. Rivera-Gómez, F. Bradley

    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. …”
    Get full text
    Article
  14. 14
  15. 15

    The Influence of Ultrasonic Melt Treatment on Microstructural Evaluation of the Al7Si2.5Cu Alloy for Semisolid Processing by Luis Vanderlei Torres, João Paulo de Oliveira Paschoal, Luciano Augusto Lourençato, Eugênio José Zoqui

    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. …”
    Get full text
    Article
  16. 16

    Effects of ultrasonic rotating extrusion assisted wire arc additive manufacturing on the microstructure and mechanical properties of 5356 aluminum alloy by Rongtao Zhu, Liang Zhang, Longhan Duan, Zhaofeng Liang, Chuang Li, Bo Yuan, Peng Du, Zhiwen Xie, Yaping Zhang

    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. …”
    Get full text
    Article
  17. 17

    Effect of ultrasonic amplitude on microstructure and properties of wire arc additive manufactured ultra-high strength steel deposited metal by Tianli Zhang, Weifeng Li, Wen Wu, Lianyong Xu, Donghai Hu, Geng Chen, Wei Li, Erika Hodúlová

    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. …”
    Get full text
    Article
  18. 18

    Effect of Ultrasonic Power on the Microstructure and Properties of a Semi-Solid Slurry of SnSbCu11-6 Alloy by Lei Wang, Xiaobin Luo, Yuanwei Jia, Yongkun Li, Rongfeng Zhou, Hao Zhang, Dingdong Huo, Yao Li

    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. …”
    Get full text
    Article
  19. 19
  20. 20