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Understanding particle dynamics in erosion testers: a review of influences of particle movement on erosion test conditions

Understanding particle dynamics in erosion testers: a review of influences of particle movement on erosion test conditions

Deng, Tong, Bingley, Mark S. and Bradley, Mike S.A. (2009) Understanding particle dynamics in erosion testers: a review of influences of particle movement on erosion test conditions. Wear, 267 (11). pp. 2132-2140. ISSN 0043-1648 (doi:10.1016/j.wear.2009.02.020)

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Abstract

An understanding of particle dynamics is important when determining material erosive wear in any erosion tester, because particle impact conditions are primarily influenced by particle acceleration. Abetter understanding of particle dynamics in the testers will aid the control of erosion test conditions and therefore improve the accuracy of measurement. In this paper, particle dynamics in the two most popular erosion testers, the centrifugal erosion tester and the gas-blast erosion tester, has been discussed in detail. Mechanisms of particle acceleration in the two types of testerswere explored and computational models
of particle dynamics were described briefly. A review of the experimental determination of important characteristics of particle dynamics (such as particle velocity, particle trajectory, particle dispersion and particle rotation) showed how they influenced particle movement and therefore the particle impact conditions. In addition, comparison of the particle dynamics in the two types of erosion testers showed that differences of particle acceleration may lead to significantly different results at identical pre-set test conditions. It may be concluded that it is not possible to directly compare the results obtained in different types of erosion testers even under notionally identical test conditions.

Item Type: Article
Additional Information: [1] Paper published in special issue of Wear (Volume 267, Issue 11), which contains a selection of papers presented at the first international conference on abrasive processes (ICAP2008), held at Churchill College, Cambridge, England from 21-25 September 2008. [2] WEAR - An International Journal on the Science and Technology of Friction, Lubrication and Wear.
Uncontrolled Keywords: erosion testers, particle dynamics, centrifugal tester, gas-blast tester
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TN Mining engineering. Metallurgy
Faculty / Department / Research Group: Faculty of Engineering & Science > Wolfson Centre for Bulk Solids Handling Technology
Related URLs:
Last Modified: 17 Oct 2016 10:03
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/7005

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