Radioactively labelled particle tracking in steel castings

Y. Beshay, W. D. Griffiths, D. Parker, X. Fan

Research output: Contribution to conferencePaperpeer-review


It is well established that non-metallic inclusions are detrimental to the mechanical properties of metals. However, the movement of such inclusions during filling and solidification of a casting is difficult to determine experimentally. This paper describes the development of a technique by which the movement of inclusions can be tracked. Alumina particles of size 355-425 μm were radioactively labelled using a cyclotron and placed on a steel mesh at the entry of a ceramic shell mould. A low carbon steel was cast into the moulds and, after the casting had solidified, the position of the radioactive particle was determined using a y-ray positron camera. The co-ordinates of the particle within the casting were obtained to an accuracy of ± 2-3 mm. This technique has been shown to be a valuable tool for any application where the presence of inclusions is critical.

Original languageEnglish
Number of pages8
Publication statusPublished - 1 Dec 2007
EventSHAPE CASTING: 2nd International Symposium - Orlando, FL, United States
Duration: 25 Feb 20071 Mar 2007


ConferenceSHAPE CASTING: 2nd International Symposium
CountryUnited States
CityOrlando, FL


  • Casting
  • Inclusion
  • Particle tracking
  • Radioactivity
  • Steel

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