Liquid Metal Flow Studied by Positron Emission Tracking

Agnieszka Dybalska; Adrian J. Caden; David J. Parker; John Wedderburn; William D. Griffiths

doi:10.1007/s11663-020-01897-7

Liquid Metal Flow Studied by Positron Emission Tracking

Agnieszka Dybalska, Adrian J. Caden, David J. Parker, John Wedderburn, William D. Griffiths

Metallurgy and Materials

Research output: Contribution to journal › Article › peer-review

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Abstract

To improve the properties of castings, a new technique to observe the fluid flow and study the motion of oxygen-bearing inclusions has been developed. This new technique, Positron Emission Particle Tracking (PEPT), enabled a single radioactive tracer particle, moving inside a liquid metal casting, to be tracked with an accuracy of some millimeters, depending on the properties of the liquid metal and the mold. These novel experiments give promising results to observe the liquid metal flow and locate the tracked particle in a casting. Experiments have shown that various particle sizes (200 to 600 μm presented here) can be used to observe the liquid metal flow, if the particle has sufficiently initial radioactivity. Different sizes of particles are considered and their radioactivity compared in terms of their usefulness for tracking in flowing liquid aluminum according to the specific surface area.

Original language	English
Pages (from-to)	1912-1917
Journal	Metallurgical and Materials Transactions B
Volume	51
Issue number	5
DOIs	https://doi.org/10.1007/s11663-020-01897-7
Publication status	Published - 6 Jul 2020

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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Contactless Ultrasonic Processing for Liquid Metals
Griffiths, W.
Engineering & Physical Science Research Council
1/11/17 → 31/03/21
Project: Research

Cite this

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abstract = "To improve the properties of castings, a new technique to observe the fluid flow and study the motion of oxygen-bearing inclusions has been developed. This new technique, Positron Emission Particle Tracking (PEPT), enabled a single radioactive tracer particle, moving inside a liquid metal casting, to be tracked with an accuracy of some millimeters, depending on the properties of the liquid metal and the mold. These novel experiments give promising results to observe the liquid metal flow and locate the tracked particle in a casting. Experiments have shown that various particle sizes (200 to 600 μm presented here) can be used to observe the liquid metal flow, if the particle has sufficiently initial radioactivity. Different sizes of particles are considered and their radioactivity compared in terms of their usefulness for tracking in flowing liquid aluminum according to the specific surface area.",

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AU - Wedderburn, John

AU - Griffiths, William D.

PY - 2020/7/6

Y1 - 2020/7/6

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Liquid Metal Flow Studied by Positron Emission Tracking

Abstract

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Contactless Ultrasonic Processing for Liquid Metals

Cite this