The Erosion Of Metals By Solid Particles - A Study Using High-Speed Photography

Ian M. Hutchings

doi:10.1117/12.955244

14 September 1977 The Erosion Of Metals By Solid Particles - A Study Using High-Speed Photography

Ian M. Hutchings

Proceedings Volume 0097, 12th Intl Congress on High Speed Photography; (1977) https://doi.org/10.1117/12.955244
Event: 12th International Congress on High Speed Photography, 1976, Toronto, Canada

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.

Citation Download Citation

Ian M. Hutchings "The Erosion Of Metals By Solid Particles - A Study Using High-Speed Photography", Proc. SPIE 0097, 12th Intl Congress on High Speed Photography, (14 September 1977); https://doi.org/10.1117/12.955244

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