Particle collisions in the vicinity of an eroding surface
Erosive wear of surfaces, in particular metal surfaces, is a frequent cause of failure of industrial machinery. The rate of erosion depends upon several quantities, including the size, shape, and velocity of the impacting particles, and the material properties of the target. The present investigatio...
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| Published in | Journal of physics. D, Applied physics Vol. 16; no. 4; pp. 525 - 538 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
IOP Publishing
14.04.1983
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| Online Access | Get full text |
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| Summary: | Erosive wear of surfaces, in particular metal surfaces, is a frequent cause of failure of industrial machinery. The rate of erosion depends upon several quantities, including the size, shape, and velocity of the impacting particles, and the material properties of the target. The present investigation has the objective to examine the importance of the flux of particles approaching the surface in relation to the frequency of collisions between particles and their resulting motions. Particle collisions are observed in a sand-blast test using high-speed photography, with glass spheres as particles. The frequency of collisions and the motion of spheres after collisions are in reasonable agreement with the theory presented. Collisions introduce randomness into the speed and final impingement angle of a particle. Collisions do not reduce the number of particles striking the target in the limit of low levels of flux. |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0022-3727 1361-6463 |
| DOI: | 10.1088/0022-3727/16/4/014 |