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Fundamental studies of ultrasonic melt processing

DOI: 10.1016/j.ultsonch.2018.12.028 DOI Help

Authors: D. G. Eskin (Brunel University London) , I. Tzanakis (Oxford Brookes University) , F. Wang (Brunel University London) , G. S. B. Lebon (Brunel University London) , T. Subroto (Brunel University London) , K. Pericleous (University of Greenwich) , J. Mi (University of Hull)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Ultrasonics Sonochemistry , VOL 52 , PAGES 455-467

State: Published (Approved)
Published: April 2019
Diamond Proposal Number(s): 8542 , 12131

Open Access Open Access

Abstract: Ultrasonic (cavitation) melt processing attracts considerable interest from both academic and industrial communities as a promising route to provide clean, environment friendly and energy efficient solutions for some of the core issues of the metal casting industry, such as improving melt quality and providing structure refinement. In the last 5 years, the authors undertook an extensive research programme into fundamental mechanisms of cavitation melt processing using state-of-the-art and unique facilities and methodologies. This overview summarises the recent results on the evaluation of acoustic pressure and melt flows in the treated melt, direct observations and quantitative analysis of cavitation in liquid aluminium alloys, in-situ and ex-situ studies of the nucleation, growth and fragmentation of intermetallics, and de-agglomeration of particles. These results provide valuable new insights and knowledge that are essential for upscaling ultrasonic melt processing to industrial level.

Journal Keywords: Aluminium; In situ characterisation; Acoustic pressure; Acoustic streaming; Ultrasonic melt processing; Structure refinement; Heterogeneous nucleation; Fragmentation; De-agglomeration

Diamond Keywords: Alloys

Subject Areas: Materials, Engineering

Instruments: I12-JEEP: Joint Engineering, Environmental and Processing

Other Facilities: Synchrotron SOLEIL; Advanced Photon Source

Added On: 31/03/2019 13:55

Discipline Tags:

Materials Engineering & Processes Materials Science Engineering & Technology Industrial Engineering Metallurgy

Technical Tags:

Diffraction Energy Dispersive Diffraction (EDD)