Abstract
The current challenge for upscaling the ultrasonic melt processing (USP) technology to industrial scale is in improving the treatment efficiency using a single-sonotrode setup. To achieve this, we suggest two innovative approaches: increasing the melt residence time and exploiting acoustic resonance. This can be achieved through flow management in a launder by partitions where the resonance length within the partitions is equal or at integer steps to the wavelength of the incident sound wave. This study focuses on acoustic pressure measurements at different partition configurations and flow conditions combined with numerical modelling of the process. The measurements are done both in liquid aluminum and in water as its transparent analogue. The acoustic pressure measurements are then used to assess melt treatment improvement through cavitation activity and pressure distribution in the launder as well as to verify and further develop the numerical model.
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References
Eskin GI and Eskin DG (2017) Ultrasonic treatment of light alloy melts, second edition. CRC Press, Boca Raton, Florida.
Xu H, Jian X, Meek TT, and Han Q (2016) Ultrasonic degassing of molten aluminum under reduced pressure. In: Grandfield J.F., Eskin D.G. (eds) Essential Readings in Light Metals. Springer, Cham, p 246–250.
Alba-Baena N, Eskin D (2016) Kinetics of ultrasonic degassing of aluminum alloys. In: Sadler B.A. (eds) Light Metals 2013. The Minerals, Metals & Materials Series. Springer, Cham, p 957–962.
Eskin D, Alba-Baena N, Pabel T and da Silva M (2015) Ultrasonic degassing of aluminium alloys: basic studies and practical implementation. Mater. Sci. Technol. 31:79–84.
ASM International (1990) ASM handbook: Vol. 15 Casting, ASM International, Materials Park, Ohio.
Murty BS, Kori SA and Chakraborty M (2002) Grain refinement of aluminium and its alloys by heterogeneous nucleation and alloying. Int. Mater. Rev. 47:3–29.
Leong T, Ashokkumar M and Kentish S (2015) The growth of bubbles in an acoustic field by rectified diffusion, Handbook of Ultrasonics and Sonochemistry. In: Ashokkumar, M (ed) Springer, Singapore, p 1–30.
Eskin DG (2017) Ultrasonic processing of molten and solidifying aluminium alloys: overview and outlook. Mater. Sci. Technol. 33:636–45.
Eskin DG, Tzanakis I, Wang F, Lebon GSB, Subroto T, Pericleous K and Mi J (2019) Fundamental studies of ultrasonic melt processing. Ultrason. Sonochem. 52:455–67.
Lebon GSB, Pericleous K, Tzanakis I and Eskin D (2016) A model of cavitation for the treatment of a moving liquid metal volume. Int. J. Cast Met. Res. 29:324–30.
Subroto T, Eskin DG, Tzanakis I, Lebon GSB, Miranda A and Pericleous K (2019) Optimization of ultrasonic cavitation processing in the liquid melt flow. IOP Conf. Ser. Mater. Sci. Eng. 529 012050.
Subroto T, Miroux A, Mortensen D, M’Hamdi M, Eskin DG and Katgerman L (2012) Semi-quantitative predictions of hot tearing and cold cracking in aluminum DC casting using numerical process simulator. IOP Conf. Ser. Mater. Sci. Eng. 33 012068.
Drezet J-M and Pirling Th (2014) Influence of a wiper on residual stresses in AA7050 rolling plate ingots. J. Mater. Process. Technol. 214:1372–1378.
Drezet J-M, Ludwig O, Jacquerod C and Waz E (2007) Fracture prediction during sawing of DC cast high strength aluminium alloy rolling slabs. Int. J. Cast Met. Res. 20:163–170.
Lebon GSB, Tzanakis I, Pericleous K and Eskin D (2018) Experimental and numerical investigation of acoustic pressures in different liquids. Ultrason. Sonochem. 42:411–21.
Tzanakis I, Lebon GSB, Subroto T, Eskin D, Pericleous K (2019) Acoustic cavitation measurements and modeling in liquid aluminum. In: Chesonis C. (eds) Light Metals 2019. The Minerals, Metals & Materials Series. Springer, Cham. p 1533–1538.
Hurrell A M and Rajagopal S (2017) The practicalities of obtaining and using hydrophone calibration data to derive pressure waveforms. IEEE Trans. Ultrason. Ferroelectr. Freq. Control 64:126–40.
Tzanakis I, Lebon GSB, Eskin DG and Pericleous K (2016) Investigation of the factors influencing cavitation intensity during the ultrasonic treatment of molten aluminium. Mater. Des. 90:979–983.
Tzanakis I, Lebon GSB, Eskin DG and Pericleous KA (2017) Characterizing the cavitation development and acoustic spectrum in various liquids. Ultrason. Sonochem. 34:651–62.
Keller JB and Miksis M (1980) Bubble oscillations of large amplitude. J. Acoust. Soc. Am. 68 628–33.
Acknowledgements
The authors would like to acknowledge the financial support provided from the UK Engineering and Physical Sciences Research Council (EPSRC) through grants UltraMelt2 (EP/R011001/1, EP/R011044/1, and EP/R011095/1) and LiME Hub (EP/N007638/1).
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Subroto, T., Eskin, D.G., Beckwith, C., Tzanakis, I., Djambazov, G., Pericleous, K. (2020). Improving Ultrasonic Melt Treatment Efficiency Through Flow Management: Acoustic Pressure Measurements and Numerical Simulations. In: Tomsett, A. (eds) Light Metals 2020. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36408-3_132
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DOI: https://doi.org/10.1007/978-3-030-36408-3_132
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