Study of fragmentation and ultrasonic flow impacts of several metal-based alloys

21^st International Conference on Advanced Materials & Nanotechnology

September 04-06, 2018 | Zurich, Switzerland

Abdulrahman Sumayli

University of Hull, UK

Posters & Accepted Abstracts: Res. Rev. J Mat. Sci

DOI: 10.4172/2321-6212-C3-021

Abstract

We present a number of highlight cases in our recent projects funded by the Royal Society and the EPSRC. Our focus is to study in real-time and in-situ dynamic evolution of solidification microstructures under ultrasonic waves and pulse magnetic fields. We have used the speciality beamlines from the Diamond Light Source, Advanced Photon Source, European Synchrotron Radiation Facility, and Swiss Light Source for our studies and worked closely with the relevant beamline scientists. We also used high performance supercomputer, viper, housed at Hull University to process and analyse the many hundreds of TB data acquired from the experiments. Our research demonstrates that real-time and in-situ visualisation of the dynamic microstructural evolution is absolutely essential for elucidating some of the ambiguities or missing links in the classical theories concerning the solidification processes of metal alloys. Real-time evidence shows that the shock wave created at ultrasonic bubble implosion and the pinch stresses produced by the electromagnetic pulse are very effective in causing the fragmentation of dendrites or intermetallic phases, promoting greatly the grain multiplication effect and therefore enhancing grain refinement. Recent Publications 1. B Wang and J Mi (2018) Ultrafast synchrotron X-ray imaging studies of microstructure fragmentation in solidification under ultrasound. Acta Materialia, 144:505-515. 2. F Wang and J Mi (2017) A synchrotron X-radiography study of the fragmentation and refinement of primary intermetallic particles in an Al-35 Cu alloy induced by ultrasonic melt processing. Acta Materialia 142-153.

Biography

Abdulrahman Sumayli is a PhD student in Advanced Materials group in the School of Engineering and Computer Science at University of Hull. He is pursuing his PhD studies. His research is funded by Saudi Arabian Cultural Burea in London. He has completed his Bachelor’s degree at King Abdulaziz University in Mechanical Engineering and Master’s degree in Advanced Mechanical Engineering at Sheffield University. His PhD research is focused on “Corrosion resistance of Bulk Glasses Metallic (BMGs) amorphous alloys and the likelihood to use them as biocompatible materials”.

E-mail: A.I.Sumayli@2016.hull.ac.uk

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