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Proceedings Paper

The Erosion Of Metals By Solid Particles - A Study Using High-Speed Photography
Author(s): Ian M. Hutchings
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Paper Abstract

The erosion of metals by sand and dust particles is an industrially important wear pro-cess. In order to study more closely the mechanisms by which impacting particles remove material from a metal surface, experiments were carried out in which hard steel spheres and square plates were fired at metal surfaces. Impact velocities varied from 50 to 350 ms -1. Photographs of the impact process taken at a framing rate of 5 x 104 s-1 with an Imacon image-converter framing camera provided qualitative information on the mechanisms of metal removal. The spherical particles removed metal by a ploughing process, and in certain cases the square plates removed metal by a machining action. Rotation of the square plates during impact was clearly seen in the photographs and had an important effect on the character of the indentation. Quantitative measurements of rebound velocities and rate of spin were made from the photographs; these correlated well with theoretical predictions.

Paper Details

Date Published: 14 September 1977
PDF: 4 pages
Proc. SPIE 0097, 12th Intl Congress on High Speed Photography, (14 September 1977); doi: 10.1117/12.955244
Show Author Affiliations
Ian M. Hutchings, Cavendish Laboratory (England)

Published in SPIE Proceedings Vol. 0097:
12th Intl Congress on High Speed Photography
Martin C. Richardson, Editor(s)

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